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<p>Rust 快速参考备忘单，旨在为编写基本语法和方法提供帮助。</p>
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</div></header><div class="menu-tocs"><div class="menu-btn"><svg aria-hidden="true" fill="currentColor" height="1em" width="1em" viewBox="0 0 16 16" version="1.1" data-view-component="true">
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</svg></div><div class="menu-modal"><a aria-hidden="true" class="leve2 tocs-link" href="#入门">入门</a><a aria-hidden="true" class="leve3 tocs-link" href="#hello_worldrs">Hello_World.rs</a><a aria-hidden="true" class="leve4 tocs-link" href="#编译运行">编译运行</a><a aria-hidden="true" class="leve3 tocs-link" href="#原始类型">原始类型</a><a aria-hidden="true" class="leve3 tocs-link" href="#格式化">格式化</a><a aria-hidden="true" class="leve3 tocs-link" href="#打印风格">打印风格</a><a aria-hidden="true" class="leve3 tocs-link" href="#变量">变量</a><a aria-hidden="true" class="leve3 tocs-link" href="#注释">注释</a><a aria-hidden="true" class="leve3 tocs-link" href="#函数">函数</a><a aria-hidden="true" class="leve3 tocs-link" href="#声明宏">声明宏</a><a aria-hidden="true" class="leve3 tocs-link" href="#元变量">元变量</a><a aria-hidden="true" class="leve3 tocs-link" href="#结构体">结构体</a><a aria-hidden="true" class="leve3 tocs-link" href="#枚举">枚举</a><a aria-hidden="true" class="leve2 tocs-link" href="#rust-类型">Rust 类型</a><a aria-hidden="true" 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class="leve3 tocs-link" href="#capacity">.capacity()</a><a aria-hidden="true" class="leve3 tocs-link" href="#contains">.contains()</a><a aria-hidden="true" class="leve3 tocs-link" href="#添加单个字符">添加单个字符</a><a aria-hidden="true" class="leve3 tocs-link" href="#添加整个字符串">添加整个字符串</a><a aria-hidden="true" class="leve3 tocs-link" href="#字符或字符串转换">字符或字符串转换</a><a aria-hidden="true" class="leve2 tocs-link" href="#rust-动态数组">Rust 动态数组</a><a aria-hidden="true" class="leve3 tocs-link" href="#创建动态数组">创建动态数组</a><a aria-hidden="true" class="leve3 tocs-link" href="#读取元素">读取元素</a><a aria-hidden="true" class="leve3 tocs-link" href="#遍历数组">遍历数组</a><a aria-hidden="true" class="leve3 tocs-link" href="#常用方法">常用方法</a><a aria-hidden="true" class="leve2 tocs-link" href="#rust-运算符">Rust 运算符</a><a aria-hidden="true" class="leve3 tocs-link" href="#比较运算符">比较运算符</a><a aria-hidden="true" class="leve3 tocs-link" href="#算术运算符">算术运算符</a><a aria-hidden="true" class="leve3 tocs-link" href="#位运算符">位运算符</a><a aria-hidden="true" class="leve3 tocs-link" href="#逻辑运算符">逻辑运算符</a><a aria-hidden="true" class="leve3 tocs-link" href="#复合赋值运算符">复合赋值运算符</a><a aria-hidden="true" class="leve2 tocs-link" href="#rust-流程控制">Rust 流程控制</a><a aria-hidden="true" class="leve3 tocs-link" href="#if表达式">If表达式</a><a aria-hidden="true" class="leve3 tocs-link" href="#ifelse-表达式">If...Else 表达式</a><a aria-hidden="true" class="leve3 tocs-link" href="#ifelseifelse-表达式">If...Else...if...Else 表达式</a><a aria-hidden="true" class="leve3 tocs-link" href="#iflet-表达式">If...let 表达式</a><a aria-hidden="true" class="leve3 tocs-link" href="#匹配表达式">匹配表达式</a><a aria-hidden="true" class="leve3 tocs-link" href="#嵌套if-表达式">嵌套...If 表达式</a><a aria-hidden="true" class="leve3 tocs-link" href="#for-循环">For 循环</a><a aria-hidden="true" class="leve3 tocs-link" href="#while-循环">While 循环</a><a aria-hidden="true" class="leve3 tocs-link" href="#loop-关键字">Loop 关键字</a><a aria-hidden="true" class="leve3 tocs-link" href="#break-中断语句">Break 中断语句</a><a aria-hidden="true" class="leve3 tocs-link" href="#continue-继续声明">Continue 继续声明</a><a aria-hidden="true" class="leve2 tocs-link" href="#rust-函数">Rust 函数</a><a aria-hidden="true" class="leve3 tocs-link" href="#基本函数">基本函数</a><a aria-hidden="true" class="leve3 tocs-link" href="#按值传递">按值传递</a><a aria-hidden="true" class="leve3 tocs-link" href="#通过引用传递">通过引用传递</a><a aria-hidden="true" class="leve3 tocs-link" href="#返回">返回</a><a aria-hidden="true" class="leve3 tocs-link" href="#数组作为参数">数组作为参数</a><a aria-hidden="true" class="leve3 tocs-link" href="#返回数组">返回数组</a><a aria-hidden="true" class="leve3 tocs-link" href="#泛型函数">泛型函数</a><a aria-hidden="true" class="leve2 tocs-link" href="#杂项">杂项</a><a aria-hidden="true" class="leve3 tocs-link" href="#类型断言-type-casting">类型断言 type-casting</a><a aria-hidden="true" class="leve3 tocs-link" href="#借用">借用</a><a aria-hidden="true" class="leve3 tocs-link" href="#解引用">解引用</a><a aria-hidden="true" class="leve3 tocs-link" href="#作用域">作用域</a><a aria-hidden="true" class="leve2 tocs-link" href="#另见">另见</a></div></div><div class="h1wrap-body"><div class="wrap h2body-exist"><div class="wrap-header h2wrap"><h2 id="入门"><a aria-hidden="true" tabindex="-1" href="#入门"><span class="icon icon-link"></span></a>入门</h2><div class="wrap-body">
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</div></div><div class="h2wrap-body"><div class="wrap h3body-exist"><div class="wrap-header h3wrap"><h3 id="hello_worldrs"><a aria-hidden="true" tabindex="-1" href="#hello_worldrs"><span class="icon icon-link"></span></a>Hello_World.rs</h3><div class="wrap-body">
|
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<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">fn</span> <span class="token function-definition function">main</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
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</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"Hello, World!"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
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</span><span class="code-line"><span class="token punctuation">}</span>
|
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</span></code></pre>
|
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<h4 id="编译运行"><a aria-hidden="true" tabindex="-1" href="#编译运行"><span class="icon icon-link"></span></a>编译运行</h4>
|
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<pre class="language-shell"><code class="language-shell code-highlight"><span class="code-line">$ rustc Hello_World.rs
|
||
</span><span class="code-line">$ ./Hello_World
|
||
</span><span class="code-line">Hello, World<span class="token operator">!</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="原始类型"><a aria-hidden="true" tabindex="-1" href="#原始类型"><span class="icon icon-link"></span></a>原始类型</h3><div class="wrap-body">
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<table><thead><tr><th align="left">:-</th><th align="left">:-</th></tr></thead><tbody><tr><td align="left"><code>bool</code></td><td align="left">布尔值 (<code>true</code> <em>/</em> <code>false</code>)</td></tr><tr><td align="left"><code>char</code></td><td align="left">字符</td></tr><tr><td align="left"><code>f32</code>, <code>f64</code></td><td align="left">32 位、64 位浮点数</td></tr><tr><td align="left"><code>i64</code>, <code>i32</code>, <code>i16</code>, <code>i8</code></td><td align="left">有符号 16- ... 整数</td></tr><tr><td align="left"><code>u64</code>, <code>u32</code>, <code>u16</code>, <code>u8</code></td><td align="left">无符号 16 位，... 整数</td></tr><tr><td align="left"><code>isize</code></td><td align="left">指针大小的有符号整数</td></tr><tr><td align="left"><code>usize</code></td><td align="left">指针大小的无符号整数</td></tr></tbody></table>
|
||
<p>查看: <a href="#rust-%E7%B1%BB%E5%9E%8B">Rust 类型</a></p>
|
||
</div></div></div><div class="wrap h3body-not-exist row-span-2"><div class="wrap-header h3wrap"><h3 id="格式化"><a aria-hidden="true" tabindex="-1" href="#格式化"><span class="icon icon-link"></span></a>格式化</h3><div class="wrap-body">
|
||
<!--rehype:wrap-class=row-span-2-->
|
||
<pre class="wrap-text "><code class="language-rust code-highlight"><span class="code-line"><span class="token comment">// 单个占位符</span>
|
||
</span><span class="code-line"><span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"{}"</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token comment">// 多个占位符</span>
|
||
</span><span class="code-line"><span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"{} {}"</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">3</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token comment">// 位置参数</span>
|
||
</span><span class="code-line"><span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"{0} 是 {1} {2}，{0} 也是 {3} 编程语言"</span><span class="token punctuation">,</span> <span class="token string">"Rust"</span><span class="token punctuation">,</span> <span class="token string">"cool"</span><span class="token punctuation">,</span> <span class="token string">"language"</span><span class="token punctuation">,</span> <span class="token string">"safe"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token comment">// 命名参数</span>
|
||
</span><span class="code-line"><span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"{country} 是一个团结的国家"</span><span class="token punctuation">,</span> country <span class="token operator">=</span> <span class="token string">"China"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token comment">// 占位符特征 :b 表示二进制， :0x 表示十六进制， :o 表示八进制</span>
|
||
</span><span class="code-line"><span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"让我们打印 76 是二进制的 {:b} ，十六进制等价物是 {:0x} 八进制等价物是 {:o}"</span><span class="token punctuation">,</span> <span class="token number">76</span><span class="token punctuation">,</span> <span class="token number">76</span><span class="token punctuation">,</span> <span class="token number">76</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token comment">// 调试特征</span>
|
||
</span><span class="code-line"><span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"使用调试特征 {:?} 在此处打印我们想要的任何内容"</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token number">76</span><span class="token punctuation">,</span> <span class="token char">'A'</span><span class="token punctuation">,</span> <span class="token number">90</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line">
|
||
</span><span class="code-line"><span class="token comment">// 1.58 中的新格式字符串</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> x <span class="token operator">=</span> <span class="token string">"world"</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"Hello {x}!"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
<!--rehype:className=wrap-text -->
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="打印风格"><a aria-hidden="true" tabindex="-1" href="#打印风格"><span class="icon icon-link"></span></a>打印风格</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token comment">// 打印输出</span>
|
||
</span><span class="code-line"><span class="token macro property">print!</span><span class="token punctuation">(</span><span class="token string">"Hello World\n"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token comment">// 打印后追加新行</span>
|
||
</span><span class="code-line"><span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"追加新行"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token comment">// 打印为错误</span>
|
||
</span><span class="code-line"><span class="token macro property">eprint!</span><span class="token punctuation">(</span><span class="token string">"这是一个错误\n"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token comment">// 打印为新行错误</span>
|
||
</span><span class="code-line"><span class="token macro property">eprintln!</span><span class="token punctuation">(</span><span class="token string">"这是新行的错误"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="变量"><a aria-hidden="true" tabindex="-1" href="#变量"><span class="icon icon-link"></span></a>变量</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token comment">// 初始化和声明变量</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> some_variable <span class="token operator">=</span> <span class="token string">"This_is_a_variable"</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token comment">// 使变量可变</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> <span class="token keyword">mut</span> mutable_variable <span class="token operator">=</span> <span class="token string">"Mutable"</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token comment">// 分配多个变量</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> <span class="token punctuation">(</span>name<span class="token punctuation">,</span> age<span class="token punctuation">)</span> <span class="token operator">=</span> <span class="token punctuation">(</span><span class="token string">"ElementalX"</span><span class="token punctuation">,</span> <span class="token number">20</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token comment">// （全局）常量</span>
|
||
</span><span class="code-line"><span class="token keyword">const</span> <span class="token constant">SCREAMING_SNAKE_CASE</span><span class="token punctuation">:</span><span class="token keyword">i64</span> <span class="token operator">=</span> <span class="token number">9</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="注释"><a aria-hidden="true" tabindex="-1" href="#注释"><span class="icon icon-link"></span></a>注释</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token comment">// 行注释</span>
|
||
</span><span class="code-line"><span class="token comment">/*.............块注释 */</span>
|
||
</span><span class="code-line"><span class="token comment">/// 外部文档注释</span>
|
||
</span><span class="code-line"><span class="token comment">//! 内部文档评论</span>
|
||
</span></code></pre>
|
||
<p>另见: <a href="https://doc.rust-lang.org/reference/comments.html">注释</a> <em>(doc.rust-lang.org)</em></p>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="函数"><a aria-hidden="true" tabindex="-1" href="#函数"><span class="icon icon-link"></span></a>函数</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">fn</span> <span class="token function-definition function">test</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"这是一个函数!"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span><span class="code-line"><span class="token keyword">fn</span> <span class="token function-definition function">main</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token function">test</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span></code></pre>
|
||
<p>查看: <a href="#rust-%E5%87%BD%E6%95%B0">Functions</a></p>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="声明宏"><a aria-hidden="true" tabindex="-1" href="#声明宏"><span class="icon icon-link"></span></a>声明宏</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token macro property">macro_rules!</span> foo <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token punctuation">(</span><span class="token variable">$l</span><span class="token punctuation">:</span><span class="token fragment-specifier punctuation">tt</span><span class="token punctuation">)</span> <span class="token operator">=></span> <span class="token punctuation">{</span> <span class="token macro property">bar!</span><span class="token punctuation">(</span><span class="token variable">$l</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token punctuation">}</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span><span class="code-line"><span class="token macro property">macro_rules!</span> bar <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token punctuation">(</span><span class="token number">3</span><span class="token punctuation">)</span> <span class="token operator">=></span> <span class="token punctuation">{</span><span class="token punctuation">}</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span><span class="code-line"><span class="token macro property">foo!</span><span class="token punctuation">(</span><span class="token number">3</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist row-span-2"><div class="wrap-header h3wrap"><h3 id="元变量"><a aria-hidden="true" tabindex="-1" href="#元变量"><span class="icon icon-link"></span></a>元变量</h3><div class="wrap-body">
|
||
<!--rehype:wrap-class=row-span-2-->
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<table><thead><tr><th align="left">:-</th><th align="left">:-</th></tr></thead><tbody><tr><td align="left"><code>item</code></td><td align="left">程序项</td></tr><tr><td align="left"><code>block</code></td><td align="left">块表达式</td></tr><tr><td align="left"><code>stmt</code></td><td align="left">语句<br> <em>(注意此选择器不匹配句尾的分号)</em></td></tr><tr><td align="left"><code>pat</code></td><td align="left">模式</td></tr><tr><td align="left"><code>expr</code></td><td align="left">表达式</td></tr><tr><td align="left"><code>ty</code></td><td align="left">类型</td></tr><tr><td align="left"><code>ident</code></td><td align="left">标识符或关键字</td></tr><tr><td align="left"><code>path</code></td><td align="left">类型表达式 形式的路径</td></tr><tr><td align="left"><code>tt</code></td><td align="left"><code>token</code> 树<br> <em>(单个 <code>token</code> 或宏匹配定界符 <code>()</code>、<code>[]</code> 或 <code>{}</code> 中的标记)</em></td></tr><tr><td align="left"><code>meta</code></td><td align="left">属性，属性中的内容</td></tr><tr><td align="left"><code>lifetime</code></td><td align="left">生存期 <code>token</code></td></tr><tr><td align="left"><code>vis</code></td><td align="left">可能为空的可见性限定符</td></tr><tr><td align="left"><code>literal</code></td><td align="left">匹配 <code>-?</code> 字面量表达式</td></tr></tbody></table>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="结构体"><a aria-hidden="true" tabindex="-1" href="#结构体"><span class="icon icon-link"></span></a>结构体</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">struct</span> <span class="token type-definition class-name">Point</span> <span class="token punctuation">{</span> x<span class="token punctuation">:</span> <span class="token keyword">i32</span><span class="token punctuation">,</span> y<span class="token punctuation">:</span> <span class="token keyword">i32</span> <span class="token punctuation">}</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> p <span class="token operator">=</span> <span class="token class-name">Point</span> <span class="token punctuation">{</span> x<span class="token punctuation">:</span> <span class="token number">10</span><span class="token punctuation">,</span> y<span class="token punctuation">:</span> <span class="token number">11</span> <span class="token punctuation">}</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> px<span class="token punctuation">:</span> <span class="token keyword">i32</span> <span class="token operator">=</span> p<span class="token punctuation">.</span>x<span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
<p>结构体是一个使用关键字 <code>struct</code> 定义的标称型(nominal)结构体类型</p>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="枚举"><a aria-hidden="true" tabindex="-1" href="#枚举"><span class="icon icon-link"></span></a>枚举</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">enum</span> <span class="token type-definition class-name">Foo</span> <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token class-name">Bar</span><span class="token punctuation">,</span> <span class="token comment">// 0</span>
|
||
</span><span class="code-line"> <span class="token class-name">Baz</span> <span class="token operator">=</span> <span class="token number">123</span><span class="token punctuation">,</span> <span class="token comment">// 123</span>
|
||
</span><span class="code-line"> <span class="token class-name">Quux</span><span class="token punctuation">,</span> <span class="token comment">// 124</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span><span class="code-line">
|
||
</span><span class="code-line"><span class="token keyword">let</span> baz_discriminant <span class="token operator">=</span> <span class="token class-name">Foo</span><span class="token punctuation">::</span><span class="token class-name">Baz</span> <span class="token keyword">as</span> <span class="token keyword">u32</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token macro property">assert_eq!</span><span class="token punctuation">(</span>baz_discriminant<span class="token punctuation">,</span> <span class="token number">123</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
</div></div></div></div></div><div class="wrap h2body-exist"><div class="wrap-header h2wrap"><h2 id="rust-类型"><a aria-hidden="true" tabindex="-1" href="#rust-类型"><span class="icon icon-link"></span></a>Rust 类型</h2><div class="wrap-body">
|
||
</div></div><div class="h2wrap-body"><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="类型别名"><a aria-hidden="true" tabindex="-1" href="#类型别名"><span class="icon icon-link"></span></a>类型别名</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">type</span> <span class="token type-definition class-name">Point</span> <span class="token operator">=</span> <span class="token punctuation">(</span><span class="token keyword">u8</span><span class="token punctuation">,</span> <span class="token keyword">u8</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> p<span class="token punctuation">:</span> <span class="token class-name">Point</span> <span class="token operator">=</span> <span class="token punctuation">(</span><span class="token number">41</span><span class="token punctuation">,</span> <span class="token number">68</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="整数"><a aria-hidden="true" tabindex="-1" href="#整数"><span class="icon icon-link"></span></a>整数</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> <span class="token keyword">mut</span> a<span class="token punctuation">:</span> <span class="token keyword">u32</span> <span class="token operator">=</span> <span class="token number">8</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> b <span class="token operator">=</span> <span class="token number">877_u64</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> c <span class="token operator">=</span> <span class="token number">8999i64</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> d <span class="token operator">=</span> <span class="token operator">-</span><span class="token number">90</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="浮点数"><a aria-hidden="true" tabindex="-1" href="#浮点数"><span class="icon icon-link"></span></a>浮点数</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> <span class="token keyword">mut</span> sixty_bit_float<span class="token punctuation">:</span> <span class="token keyword">f64</span> <span class="token operator">=</span> <span class="token number">89.90</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> thirty_two_bit_float<span class="token punctuation">:</span> <span class="token keyword">f32</span> <span class="token operator">=</span> <span class="token number">7.90</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> just_a_float <span class="token operator">=</span> <span class="token number">69.69</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="布尔值"><a aria-hidden="true" tabindex="-1" href="#布尔值"><span class="icon icon-link"></span></a>布尔值</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> true_val<span class="token punctuation">:</span> <span class="token keyword">bool</span> <span class="token operator">=</span> <span class="token boolean">true</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> false_val<span class="token punctuation">:</span> <span class="token keyword">bool</span> <span class="token operator">=</span> <span class="token boolean">false</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> just_a_bool <span class="token operator">=</span> <span class="token boolean">true</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> is_true <span class="token operator">=</span> <span class="token number">8</span> <span class="token operator"><</span> <span class="token number">5</span><span class="token punctuation">;</span> <span class="token comment">// => false</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="字符"><a aria-hidden="true" tabindex="-1" href="#字符"><span class="icon icon-link"></span></a>字符</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> first_letter_of_alphabet <span class="token operator">=</span> <span class="token char">'a'</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> explicit_char<span class="token punctuation">:</span> <span class="token keyword">char</span> <span class="token operator">=</span> <span class="token char">'F'</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> implicit_char <span class="token operator">=</span> <span class="token char">'8'</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> emoji <span class="token operator">=</span> <span class="token string">"\u{1f600}"</span><span class="token punctuation">;</span> <span class="token comment">// => 😀</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="字符串字面量"><a aria-hidden="true" tabindex="-1" href="#字符串字面量"><span class="icon icon-link"></span></a>字符串字面量</h3><div class="wrap-body">
|
||
<pre class="wrap-text "><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> community_name <span class="token operator">=</span> <span class="token string">"AXIAL"</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> no_of_members<span class="token punctuation">:</span> <span class="token operator">&</span><span class="token keyword">str</span> <span class="token operator">=</span> <span class="token string">"ten"</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"社区的名称是 {community_name}，它有 {no_of_members} 个成员"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
<!--rehype:className=wrap-text -->
|
||
<p>查看: <a href="#rust-%E5%AD%97%E7%AC%A6%E4%B8%B2">字符串</a></p>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="数组"><a aria-hidden="true" tabindex="-1" href="#数组"><span class="icon icon-link"></span></a>数组</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line">┌─────┬─────┬─────┬─────┬─────┬─────┐
|
||
</span><span class="code-line"><span class="token operator">|</span> <span class="token number">92</span> <span class="token operator">|</span> <span class="token number">97</span> <span class="token operator">|</span> <span class="token number">98</span> <span class="token operator">|</span> <span class="token number">99</span> <span class="token operator">|</span> <span class="token number">98</span> <span class="token operator">|</span> <span class="token number">94</span> <span class="token operator">|</span>
|
||
</span><span class="code-line">└─────┴─────┴─────┴─────┴─────┴─────┘
|
||
</span><span class="code-line"> <span class="token number">0</span> <span class="token number">1</span> <span class="token number">2</span> <span class="token number">3</span> <span class="token number">4</span> <span class="token number">5</span>
|
||
</span></code></pre>
|
||
<hr>
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> array<span class="token punctuation">:</span> <span class="token punctuation">[</span><span class="token keyword">i64</span><span class="token punctuation">;</span> <span class="token number">6</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token number">92</span><span class="token punctuation">,</span><span class="token number">97</span><span class="token punctuation">,</span><span class="token number">98</span><span class="token punctuation">,</span><span class="token number">99</span><span class="token punctuation">,</span><span class="token number">98</span><span class="token punctuation">,</span><span class="token number">94</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist row-span-2"><div class="wrap-header h3wrap"><h3 id="多维数组"><a aria-hidden="true" tabindex="-1" href="#多维数组"><span class="icon icon-link"></span></a>多维数组</h3><div class="wrap-body">
|
||
<!--rehype:wrap-class=row-span-2-->
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"> j0 j1 j2 j3 j4 j5
|
||
</span><span class="code-line"> ┌────┬────┬────┬────┬────┬────┐
|
||
</span><span class="code-line">i0 <span class="token operator">|</span> <span class="token number">1</span> <span class="token operator">|</span> <span class="token number">2</span> <span class="token operator">|</span> <span class="token number">3</span> <span class="token operator">|</span> <span class="token number">4</span> <span class="token operator">|</span> <span class="token number">5</span> <span class="token operator">|</span> <span class="token number">6</span> <span class="token operator">|</span>
|
||
</span><span class="code-line"> ├────┼────┼────┼────┼────┼────┤
|
||
</span><span class="code-line">i1 <span class="token operator">|</span> <span class="token number">6</span> <span class="token operator">|</span> <span class="token number">5</span> <span class="token operator">|</span> <span class="token number">4</span> <span class="token operator">|</span> <span class="token number">3</span> <span class="token operator">|</span> <span class="token number">2</span> <span class="token operator">|</span> <span class="token number">1</span> <span class="token operator">|</span>
|
||
</span><span class="code-line"> └────┴────┴────┴────┴────┴────┘
|
||
</span></code></pre>
|
||
<hr>
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> array<span class="token punctuation">:</span> <span class="token punctuation">[</span><span class="token punctuation">[</span><span class="token keyword">i64</span><span class="token punctuation">;</span> <span class="token number">6</span><span class="token punctuation">]</span> <span class="token punctuation">;</span><span class="token number">2</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token punctuation">[</span>
|
||
</span><span class="code-line"> <span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token number">3</span><span class="token punctuation">,</span><span class="token number">4</span><span class="token punctuation">,</span><span class="token number">5</span><span class="token punctuation">,</span><span class="token number">6</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
|
||
</span><span class="code-line"> <span class="token punctuation">[</span><span class="token number">6</span><span class="token punctuation">,</span><span class="token number">5</span><span class="token punctuation">,</span><span class="token number">4</span><span class="token punctuation">,</span><span class="token number">3</span><span class="token punctuation">,</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token number">1</span><span class="token punctuation">]</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="可变数组"><a aria-hidden="true" tabindex="-1" href="#可变数组"><span class="icon icon-link"></span></a>可变数组</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> <span class="token keyword">mut</span> array<span class="token punctuation">:</span> <span class="token punctuation">[</span><span class="token keyword">i32</span> <span class="token punctuation">;</span> <span class="token number">3</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token number">6</span><span class="token punctuation">,</span><span class="token number">10</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line">array<span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token number">4</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line">array<span class="token punctuation">[</span><span class="token number">2</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token number">6</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
<p>使用 <code>mut</code> 关键字使其可变</p>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="切片"><a aria-hidden="true" tabindex="-1" href="#切片"><span class="icon icon-link"></span></a>切片</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> <span class="token keyword">mut</span> array<span class="token punctuation">:</span> <span class="token punctuation">[</span> <span class="token keyword">i64</span><span class="token punctuation">;</span> <span class="token number">4</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token number">3</span><span class="token punctuation">,</span><span class="token number">4</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token comment">// 下限包括在内，上限不包括在内</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> <span class="token keyword">mut</span> slices<span class="token punctuation">:</span> <span class="token operator">&</span><span class="token punctuation">[</span><span class="token keyword">i64</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token operator">&</span>array<span class="token punctuation">[</span><span class="token number">0</span><span class="token punctuation">..</span><span class="token number">3</span><span class="token punctuation">]</span>
|
||
</span><span class="code-line"><span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"切片的元素是：{slices:?}"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="向量"><a aria-hidden="true" tabindex="-1" href="#向量"><span class="icon icon-link"></span></a>向量</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> some_vector <span class="token operator">=</span> <span class="token macro property">vec!</span><span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token number">3</span><span class="token punctuation">,</span><span class="token number">4</span><span class="token punctuation">,</span><span class="token number">5</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
<p>使用 <code>vec!</code> 宏声明向量</p>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="元组"><a aria-hidden="true" tabindex="-1" href="#元组"><span class="icon icon-link"></span></a>元组</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> tuple <span class="token operator">=</span> <span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token char">'A'</span> <span class="token punctuation">,</span> <span class="token string">"Cool"</span><span class="token punctuation">,</span> <span class="token number">78</span><span class="token punctuation">,</span> <span class="token boolean">true</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
</div></div></div></div></div><div class="wrap h2body-exist"><div class="wrap-header h2wrap"><h2 id="rust-字符串"><a aria-hidden="true" tabindex="-1" href="#rust-字符串"><span class="icon icon-link"></span></a>Rust 字符串</h2><div class="wrap-body">
|
||
</div></div><div class="h2wrap-body"><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="字符串字面量-1"><a aria-hidden="true" tabindex="-1" href="#字符串字面量-1"><span class="icon icon-link"></span></a>字符串字面量</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> cs<span class="token punctuation">:</span><span class="token operator">&</span><span class="token keyword">str</span> <span class="token operator">=</span> <span class="token string">"备忘清单"</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token comment">// => 为开发者分享备忘单</span>
|
||
</span><span class="code-line"><span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"为开发者分享 {cs}"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="字符串对象"><a aria-hidden="true" tabindex="-1" href="#字符串对象"><span class="icon icon-link"></span></a>字符串对象</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token comment">// 创建一个空字符串对象</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> my_string <span class="token operator">=</span> <span class="token class-name">String</span><span class="token punctuation">::</span>new<span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token comment">// 转换为字符串对象</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> <span class="token class-name">S_string</span> <span class="token operator">=</span> a_string<span class="token punctuation">.</span><span class="token function">to_string</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
|
||
</span><span class="code-line"><span class="token comment">// 创建一个初始化的字符串对象</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> lang <span class="token operator">=</span> <span class="token class-name">String</span><span class="token punctuation">::</span><span class="token function">from</span><span class="token punctuation">(</span><span class="token string">"Rust"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"First language is {lang}"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="capacity"><a aria-hidden="true" tabindex="-1" href="#capacity"><span class="icon icon-link"></span></a>.capacity()</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> rand <span class="token operator">=</span> <span class="token class-name">String</span><span class="token punctuation">::</span><span class="token function">from</span><span class="token punctuation">(</span><span class="token string">"Random String"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line">rand<span class="token punctuation">.</span><span class="token function">capacity</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token comment">// => 13</span>
|
||
</span></code></pre>
|
||
<p>以字节为单位计算字符串的容量</p>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="contains"><a aria-hidden="true" tabindex="-1" href="#contains"><span class="icon icon-link"></span></a>.contains()</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> name <span class="token operator">=</span> <span class="token class-name">String</span><span class="token punctuation">::</span><span class="token function">from</span><span class="token punctuation">(</span><span class="token string">"ElementalX"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line">name<span class="token punctuation">.</span><span class="token function">contains</span><span class="token punctuation">(</span><span class="token string">"Element"</span><span class="token punctuation">)</span> <span class="token comment">// => true</span>
|
||
</span></code></pre>
|
||
<p>检查子字符串是否包含在原始字符串中</p>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="添加单个字符"><a aria-hidden="true" tabindex="-1" href="#添加单个字符"><span class="icon icon-link"></span></a>添加单个字符</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> <span class="token keyword">mut</span> half_text <span class="token operator">=</span> <span class="token class-name">String</span><span class="token punctuation">::</span><span class="token function">from</span><span class="token punctuation">(</span><span class="token string">"Hal"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line">half_text<span class="token punctuation">.</span><span class="token function">push</span><span class="token punctuation">(</span><span class="token char">'f'</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// => Half</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="添加整个字符串"><a aria-hidden="true" tabindex="-1" href="#添加整个字符串"><span class="icon icon-link"></span></a>添加整个字符串</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> <span class="token keyword">mut</span> hi <span class="token operator">=</span> <span class="token class-name">String</span><span class="token punctuation">::</span><span class="token function">from</span><span class="token punctuation">(</span><span class="token string">"Hey there..."</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line">hi<span class="token punctuation">.</span><span class="token function">push_str</span><span class="token punctuation">(</span><span class="token string">"How are you doing??"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token comment">// => Hey there...How are you doing??</span>
|
||
</span><span class="code-line"><span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"{hi}"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="字符或字符串转换"><a aria-hidden="true" tabindex="-1" href="#字符或字符串转换"><span class="icon icon-link"></span></a>字符或字符串转换</h3><div class="wrap-body">
|
||
<ol>
|
||
<li>
|
||
<p>原生字符串，无需增加转义字符（<code>\</code>）转义</p>
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> str1 <span class="token operator">=</span> <span class="token string">r#"\hello"#</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"{}"</span><span class="token punctuation">,</span> str1<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token comment">// \hello</span>
|
||
</span></code></pre>
|
||
</li>
|
||
<li>
|
||
<p>字节和字节串</p>
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> str2 <span class="token operator">=</span> <span class="token char">b'a'</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"{}"</span><span class="token punctuation">,</span> str2<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token comment">// 97</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> str3 <span class="token operator">=</span> <span class="token string">b"\\hello"</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"{:?}"</span><span class="token punctuation">,</span> str3<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token comment">//[92, 104, 101, 108, 108, 111]</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> str4 <span class="token operator">=</span> <span class="token string">br#"\hello"#</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"{:?}"</span><span class="token punctuation">,</span> str4<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token comment">//[92, 104, 101, 108, 108, 111]</span>
|
||
</span></code></pre>
|
||
</li>
|
||
</ol>
|
||
</div></div></div></div></div><div class="wrap h2body-exist"><div class="wrap-header h2wrap"><h2 id="rust-动态数组"><a aria-hidden="true" tabindex="-1" href="#rust-动态数组"><span class="icon icon-link"></span></a>Rust 动态数组</h2><div class="wrap-body">
|
||
</div></div><div class="h2wrap-body"><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="创建动态数组"><a aria-hidden="true" tabindex="-1" href="#创建动态数组"><span class="icon icon-link"></span></a>创建动态数组</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> v<span class="token punctuation">:</span> <span class="token class-name">Vec</span><span class="token operator"><</span><span class="token keyword">i32</span><span class="token operator">></span> <span class="token operator">=</span> <span class="token class-name">Vec</span><span class="token punctuation">::</span><span class="token function">new</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token comment">// 使用宏</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> v1 <span class="token operator">=</span> <span class="token macro property">vec!</span><span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">2</span><span class="token punctuation">,</span> <span class="token number">3</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="读取元素"><a aria-hidden="true" tabindex="-1" href="#读取元素"><span class="icon icon-link"></span></a>读取元素</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> v <span class="token operator">=</span> <span class="token macro property">vec!</span><span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">2</span><span class="token punctuation">,</span> <span class="token number">3</span><span class="token punctuation">,</span> <span class="token number">4</span><span class="token punctuation">,</span> <span class="token number">5</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line">
|
||
</span><span class="code-line"><span class="token keyword">let</span> element <span class="token operator">=</span> <span class="token operator">&</span>v<span class="token punctuation">[</span><span class="token number">100</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token comment">// panic，越界</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> element2 <span class="token operator">=</span> v<span class="token punctuation">.</span><span class="token function">get</span><span class="token punctuation">(</span><span class="token number">100</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"{:?}"</span><span class="token punctuation">,</span> element2<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token comment">//None</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="遍历数组"><a aria-hidden="true" tabindex="-1" href="#遍历数组"><span class="icon icon-link"></span></a>遍历数组</h3><div class="wrap-body">
|
||
<ol>
|
||
<li>
|
||
<p>只读取数组中的元素</p>
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> v <span class="token operator">=</span> <span class="token macro property">vec!</span><span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">2</span><span class="token punctuation">,</span> <span class="token number">3</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">for</span> i <span class="token keyword">in</span> <span class="token operator">&</span>v <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"{}"</span><span class="token punctuation">,</span> i<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span></code></pre>
|
||
</li>
|
||
<li>
|
||
<p>遍历的同时修改数组中的元素</p>
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> <span class="token keyword">mut</span> v <span class="token operator">=</span> <span class="token macro property">vec!</span><span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">2</span><span class="token punctuation">,</span> <span class="token number">3</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">for</span> i <span class="token keyword">in</span> <span class="token operator">&</span><span class="token keyword">mut</span> v <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token operator">*</span>i <span class="token operator">+=</span> <span class="token number">10</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span></code></pre>
|
||
</li>
|
||
</ol>
|
||
</div></div></div><div class="wrap h3body-not-exist col-span-3"><div class="wrap-header h3wrap"><h3 id="常用方法"><a aria-hidden="true" tabindex="-1" href="#常用方法"><span class="icon icon-link"></span></a>常用方法</h3><div class="wrap-body">
|
||
<!--rehype:wrap-class=col-span-3-->
|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
||
<table><thead><tr><th>-</th><th align="left">:-</th></tr></thead><tbody><tr><td>len()</td><td align="left">返回 vec 的长度</td></tr><tr><td>is_empty()</td><td align="left">vec 是否为空</td></tr><tr><td>push(value)</td><td align="left">在 vec 尾部插入元素</td></tr><tr><td>pop()</td><td align="left">删除并返回 vec 尾部的元素,vec 为空则返回 None</td></tr><tr><td>insert(index,element)</td><td align="left">在指定索引处插入元素</td></tr><tr><td>remove(index)</td><td align="left">删除指定索引处的元素并返回被删除的元素,索引越界将 panic 报错退出</td></tr><tr><td>clear()</td><td align="left">清空 vec</td></tr><tr><td>append(vec)</td><td align="left">将另一个 vec 中的所有元素追加移入 vec 中,移动的 vec 变为空</td></tr><tr><td>truncate(len)</td><td align="left">将 vec 截断到指定长度,多余的元素被删除</td></tr><tr><td>retain(f)</td><td align="left">根据给定的函数，保留满足条件的元素</td></tr><tr><td>drain(range)</td><td align="left">删除 vec 中指定范围的元素,同时返回一个迭代该范围所有元素的迭代器</td></tr><tr><td>split_off(index)</td><td align="left">切分 vec，索引左边的元素保留在原 vec 中(含索引)，索引右边的元素(不含索引)在返回的 vec 中</td></tr></tbody></table>
|
||
</div></div></div></div></div><div class="wrap h2body-exist"><div class="wrap-header h2wrap"><h2 id="rust-运算符"><a aria-hidden="true" tabindex="-1" href="#rust-运算符"><span class="icon icon-link"></span></a>Rust 运算符</h2><div class="wrap-body">
|
||
</div></div><div class="h2wrap-body"><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="比较运算符"><a aria-hidden="true" tabindex="-1" href="#比较运算符"><span class="icon icon-link"></span></a>比较运算符</h3><div class="wrap-body">
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
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|
||
|
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|
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|
||
|
||
|
||
|
||
|
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|
||
<table><thead><tr><th align="left">:-</th><th align="left">:-</th></tr></thead><tbody><tr><td align="left"><code>e == f</code></td><td align="left"><code>e</code> 等于 <code>f</code></td></tr><tr><td align="left"><code>e != f</code></td><td align="left"><code>e</code> 不等于 <code>f</code></td></tr><tr><td align="left"><code>e < f</code></td><td align="left"><code>e</code> 小于 <code>f</code></td></tr><tr><td align="left"><code>e > f</code></td><td align="left"><code>e</code> 大于 <code>f</code></td></tr><tr><td align="left"><code>e <= f</code></td><td align="left"><code>e</code> 小于或等于 <code>f</code></td></tr><tr><td align="left"><code>e >= f</code></td><td align="left"><code>e</code> 大于或等于 <code>f</code></td></tr></tbody></table>
|
||
<hr>
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> <span class="token punctuation">(</span>e<span class="token punctuation">,</span> f<span class="token punctuation">)</span> <span class="token operator">=</span> <span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">100</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> greater <span class="token operator">=</span> f <span class="token operator">></span> e<span class="token punctuation">;</span> <span class="token comment">// => true</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> less <span class="token operator">=</span> f <span class="token operator"><</span> e<span class="token punctuation">;</span> <span class="token comment">// => false</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> greater_equal <span class="token operator">=</span> f <span class="token operator">>=</span> e<span class="token punctuation">;</span> <span class="token comment">// => true</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> less_equal <span class="token operator">=</span> e <span class="token operator"><=</span> f<span class="token punctuation">;</span> <span class="token comment">// => true</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> equal_to <span class="token operator">=</span> e <span class="token operator">==</span> f<span class="token punctuation">;</span> <span class="token comment">// => false</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> not_equal_to <span class="token operator">=</span> e <span class="token operator">!=</span> f<span class="token punctuation">;</span> <span class="token comment">// => true</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="算术运算符"><a aria-hidden="true" tabindex="-1" href="#算术运算符"><span class="icon icon-link"></span></a>算术运算符</h3><div class="wrap-body">
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<table><thead><tr><th align="left">:-</th><th align="left">:-</th></tr></thead><tbody><tr><td align="left"><code>a + b</code></td><td align="left"><code>a</code> 被添加到 <code>b</code></td></tr><tr><td align="left"><code>a - b</code></td><td align="left">从 <code>a</code> 中减去<code>b</code></td></tr><tr><td align="left"><code>a / b</code></td><td align="left"><code>a</code> 除以 <code>b</code></td></tr><tr><td align="left"><code>a % b</code></td><td align="left">通过与 <code>b</code> 相除得到 <code>a</code> 的余数</td></tr><tr><td align="left"><code>a * b</code></td><td align="left"><code>a</code> 与 <code>b</code> 相乘</td></tr></tbody></table>
|
||
<hr>
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> <span class="token punctuation">(</span>a<span class="token punctuation">,</span> b<span class="token punctuation">)</span> <span class="token operator">=</span> <span class="token punctuation">(</span><span class="token number">4</span><span class="token punctuation">,</span> <span class="token number">5</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> sum<span class="token punctuation">:</span> <span class="token keyword">i32</span> <span class="token operator">=</span> a <span class="token operator">+</span> b<span class="token punctuation">;</span> <span class="token comment">// => 9</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> subtractions<span class="token punctuation">:</span> <span class="token keyword">i32</span> <span class="token operator">=</span> a <span class="token operator">-</span> b<span class="token punctuation">;</span> <span class="token comment">// => -1</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> multiplication<span class="token punctuation">:</span> <span class="token keyword">i32</span> <span class="token operator">=</span> a <span class="token operator">*</span> b<span class="token punctuation">;</span> <span class="token comment">// => 20</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> division<span class="token punctuation">:</span> <span class="token keyword">i32</span> <span class="token operator">=</span> a <span class="token operator">/</span> b<span class="token punctuation">;</span> <span class="token comment">// => 0</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> modulus<span class="token punctuation">:</span> <span class="token keyword">i32</span> <span class="token operator">=</span> a <span class="token operator">%</span> b<span class="token punctuation">;</span> <span class="token comment">// => 4</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="位运算符"><a aria-hidden="true" tabindex="-1" href="#位运算符"><span class="icon icon-link"></span></a>位运算符</h3><div class="wrap-body">
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
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|
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|
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|
||
|
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|
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|
||
<table><thead><tr><th align="left">运算符</th><th align="left">描述</th></tr></thead><tbody><tr><td align="left"><code>g & h</code></td><td align="left">二进制与</td></tr><tr><td align="left"><code>g | h</code></td><td align="left">二进制或</td></tr><tr><td align="left"><code>g ^ h</code></td><td align="left">二进制异或</td></tr><tr><td align="left"><code>g ~ h</code></td><td align="left">二进制补码</td></tr><tr><td align="left"><code>g << h</code></td><td align="left">二进制左移</td></tr><tr><td align="left"><code>g >> h</code></td><td align="left">二进制右移</td></tr></tbody></table>
|
||
<hr>
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> <span class="token punctuation">(</span>g<span class="token punctuation">,</span> h<span class="token punctuation">)</span> <span class="token operator">=</span> <span class="token punctuation">(</span><span class="token number">0x1</span><span class="token punctuation">,</span> <span class="token number">0x2</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> bitwise_and <span class="token operator">=</span> g <span class="token operator">&</span> h<span class="token punctuation">;</span> <span class="token comment">// => 0</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> bitwise_or <span class="token operator">=</span> g <span class="token operator">|</span> h<span class="token punctuation">;</span> <span class="token comment">// => 3</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> bitwise_xor <span class="token operator">=</span> g <span class="token operator">^</span> h<span class="token punctuation">;</span> <span class="token comment">// => 3</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> right_shift <span class="token operator">=</span> g <span class="token operator">>></span> <span class="token number">2</span><span class="token punctuation">;</span> <span class="token comment">// => 0</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> left_shift <span class="token operator">=</span> h <span class="token operator"><<</span> <span class="token number">4</span><span class="token punctuation">;</span> <span class="token comment">// => 32 </span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="逻辑运算符"><a aria-hidden="true" tabindex="-1" href="#逻辑运算符"><span class="icon icon-link"></span></a>逻辑运算符</h3><div class="wrap-body">
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<table><thead><tr><th align="left">示例</th><th align="left">意义</th></tr></thead><tbody><tr><td align="left"><code>c && d</code></td><td align="left">两者都是真的_(AND)_</td></tr><tr><td align="left">`c</td><td align="left"></td></tr><tr><td align="left"><code>!c</code></td><td align="left"><code>c</code> 为假 <em>(NOT)</em></td></tr></tbody></table>
|
||
<hr>
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> <span class="token punctuation">(</span>c<span class="token punctuation">,</span> d<span class="token punctuation">)</span> <span class="token operator">=</span> <span class="token punctuation">(</span><span class="token boolean">true</span><span class="token punctuation">,</span> <span class="token boolean">false</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> and <span class="token operator">=</span> c <span class="token operator">&&</span> d<span class="token punctuation">;</span> <span class="token comment">// => false</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> or <span class="token operator">=</span> c <span class="token operator">||</span> d<span class="token punctuation">;</span> <span class="token comment">// => true</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> not <span class="token operator">=</span> <span class="token operator">!</span>c<span class="token punctuation">;</span> <span class="token comment">// => false</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="复合赋值运算符"><a aria-hidden="true" tabindex="-1" href="#复合赋值运算符"><span class="icon icon-link"></span></a>复合赋值运算符</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> <span class="token keyword">mut</span> k <span class="token operator">=</span> <span class="token number">9</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> <span class="token keyword">mut</span> l <span class="token operator">=</span> k<span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
<hr>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
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|
||
|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
||
|
||
|
||
<table><thead><tr><th align="left">运算符</th><th align="left">描述</th></tr></thead><tbody><tr><td align="left"><code>k += l</code></td><td align="left">添加一个值并赋值，然后 <code>k=9</code></td></tr><tr><td align="left"><code>k -= l</code></td><td align="left"><code>Substrate</code> 一个值并赋值，然后 <code>k=18</code></td></tr><tr><td align="left"><code>k /= l</code></td><td align="left">除以一个值并赋值，然后 <code>k=9</code></td></tr><tr><td align="left"><code>k *= l</code></td><td align="left">乘一个值并赋值，然后 <code>k=81</code></td></tr><tr><td align="left"><code>k |= l</code></td><td align="left">按位或并赋值，则 <code>k=89</code></td></tr></tbody></table>
|
||
</div></div></div></div></div><div class="wrap h2body-exist"><div class="wrap-header h2wrap"><h2 id="rust-流程控制"><a aria-hidden="true" tabindex="-1" href="#rust-流程控制"><span class="icon icon-link"></span></a>Rust 流程控制</h2><div class="wrap-body">
|
||
</div></div><div class="h2wrap-body"><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="if表达式"><a aria-hidden="true" tabindex="-1" href="#if表达式"><span class="icon icon-link"></span></a>If表达式</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> case1<span class="token punctuation">:</span> <span class="token keyword">i32</span> <span class="token operator">=</span> <span class="token number">81</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> case2<span class="token punctuation">:</span> <span class="token keyword">i32</span> <span class="token operator">=</span> <span class="token number">82</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">if</span> case1 <span class="token operator"><</span> case2 <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"case1 大于 case2"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="ifelse-表达式"><a aria-hidden="true" tabindex="-1" href="#ifelse-表达式"><span class="icon icon-link"></span></a>If...Else 表达式</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> case3 <span class="token operator">=</span> <span class="token number">8</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> case4 <span class="token operator">=</span> <span class="token number">9</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">if</span> case3 <span class="token operator">>=</span> case4 <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"case3 优于 case4"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span> <span class="token keyword">else</span> <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"case4 大于 case3"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="ifelseifelse-表达式"><a aria-hidden="true" tabindex="-1" href="#ifelseifelse-表达式"><span class="icon icon-link"></span></a>If...Else...if...Else 表达式</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> foo <span class="token operator">=</span> <span class="token number">12</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> bar <span class="token operator">=</span> <span class="token number">13</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">if</span> foo <span class="token operator">==</span> bar <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"foo 等于 bar"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span> <span class="token keyword">else</span> <span class="token keyword">if</span> foo <span class="token operator"><</span> bar <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"foo 小于 bar"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span> <span class="token keyword">else</span> <span class="token keyword">if</span> foo <span class="token operator">!=</span> bar <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"foo 不等于 bar"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span> <span class="token keyword">else</span> <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"Nothing"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist row-span-3"><div class="wrap-header h3wrap"><h3 id="iflet-表达式"><a aria-hidden="true" tabindex="-1" href="#iflet-表达式"><span class="icon icon-link"></span></a>If...let 表达式</h3><div class="wrap-body">
|
||
<!--rehype:wrap-class=row-span-3-->
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> <span class="token keyword">mut</span> arr1<span class="token punctuation">:</span><span class="token punctuation">[</span><span class="token keyword">i64</span> <span class="token punctuation">;</span> <span class="token number">3</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token number">3</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">if</span> <span class="token keyword">let</span><span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">2</span><span class="token punctuation">,</span>_<span class="token punctuation">]</span> <span class="token operator">=</span> arr1<span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"与数组一起使用"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> <span class="token keyword">mut</span> arr2<span class="token punctuation">:</span><span class="token punctuation">[</span><span class="token operator">&</span><span class="token keyword">str</span><span class="token punctuation">;</span> <span class="token number">2</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token string">"one"</span><span class="token punctuation">,</span> <span class="token string">"two"</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">if</span> <span class="token keyword">let</span><span class="token punctuation">[</span><span class="token string">"Apple"</span><span class="token punctuation">,</span> _<span class="token punctuation">]</span> <span class="token operator">=</span> arr2<span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"也适用于 str 数组"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span></code></pre>
|
||
<hr>
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> tuple_1 <span class="token operator">=</span> <span class="token punctuation">(</span><span class="token string">"India"</span><span class="token punctuation">,</span> <span class="token number">7</span><span class="token punctuation">,</span> <span class="token number">90</span><span class="token punctuation">,</span> <span class="token number">90.432</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">if</span> <span class="token keyword">let</span><span class="token punctuation">(</span>_<span class="token punctuation">,</span> <span class="token number">7</span><span class="token punctuation">,</span> <span class="token number">9</span><span class="token punctuation">,</span> <span class="token number">78.99</span><span class="token punctuation">)</span> <span class="token operator">=</span> tuple_1<span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"也适用于元组"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> tuple_2 <span class="token operator">=</span> <span class="token punctuation">(</span> <span class="token number">9</span><span class="token punctuation">,</span> <span class="token number">7</span><span class="token punctuation">,</span> <span class="token number">89</span><span class="token punctuation">,</span> <span class="token number">12</span><span class="token punctuation">,</span> <span class="token string">"Okay"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">if</span> <span class="token keyword">let</span><span class="token punctuation">(</span><span class="token number">9</span><span class="token punctuation">,</span> <span class="token number">7</span><span class="token punctuation">,</span><span class="token number">89</span><span class="token punctuation">,</span> <span class="token number">12</span><span class="token punctuation">,</span> blank<span class="token punctuation">)</span> <span class="token operator">=</span> tuple_2 <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"一切{blank}伴侣？"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> tuple_3 <span class="token operator">=</span> <span class="token punctuation">(</span><span class="token number">89</span><span class="token punctuation">,</span> <span class="token number">90</span><span class="token punctuation">,</span> <span class="token string">"Yes"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">if</span> <span class="token keyword">let</span><span class="token punctuation">(</span><span class="token number">9</span><span class="token punctuation">,</span> <span class="token number">89</span><span class="token punctuation">,</span> <span class="token string">"Yes"</span><span class="token punctuation">)</span> <span class="token operator">=</span> tuple_3<span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"模式确实匹配"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span><span class="code-line"><span class="token keyword">else</span> <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"模式不匹配"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist row-span-3"><div class="wrap-header h3wrap"><h3 id="匹配表达式"><a aria-hidden="true" tabindex="-1" href="#匹配表达式"><span class="icon icon-link"></span></a>匹配表达式</h3><div class="wrap-body">
|
||
<!--rehype:wrap-class=row-span-3-->
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> day_of_week <span class="token operator">=</span> <span class="token number">2</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">match</span> day_of_week <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token number">1</span> <span class="token operator">=></span> <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"兄弟们今天是星期一"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
</span><span class="code-line"> <span class="token number">2</span> <span class="token operator">=></span> <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"兄弟们今天是星期二"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
</span><span class="code-line"> <span class="token number">3</span> <span class="token operator">=></span> <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"兄弟们今天是星期三"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
</span><span class="code-line"> <span class="token number">4</span> <span class="token operator">=></span> <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"兄弟们今天是星期四"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
</span><span class="code-line"> <span class="token number">5</span> <span class="token operator">=></span> <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"兄弟们今天是星期五"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
</span><span class="code-line"> <span class="token number">6</span> <span class="token operator">=></span> <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"兄弟们今天是星期六"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
</span><span class="code-line"> <span class="token number">7</span> <span class="token operator">=></span> <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"兄弟们今天是星期天"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token punctuation">}</span><span class="token punctuation">,</span>
|
||
</span><span class="code-line"> _ <span class="token operator">=></span> <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"默认!"</span><span class="token punctuation">)</span>
|
||
</span><span class="code-line"> <span class="token punctuation">}</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="嵌套if-表达式"><a aria-hidden="true" tabindex="-1" href="#嵌套if-表达式"><span class="icon icon-link"></span></a>嵌套...If 表达式</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> nested_conditions <span class="token operator">=</span> <span class="token number">89</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">if</span> nested_conditions <span class="token operator">==</span> <span class="token number">89</span> <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token keyword">let</span> just_a_value <span class="token operator">=</span> <span class="token number">98</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token keyword">if</span> just_a_value <span class="token operator">>=</span> <span class="token number">97</span> <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"大于 97"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token punctuation">}</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="for-循环"><a aria-hidden="true" tabindex="-1" href="#for-循环"><span class="icon icon-link"></span></a>For 循环</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">for</span> <span class="token keyword">mut</span> i <span class="token keyword">in</span> <span class="token number">0</span><span class="token punctuation">..</span><span class="token number">15</span> <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> i<span class="token operator">-=</span><span class="token number">1</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"i 的值为：{i}"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="while-循环"><a aria-hidden="true" tabindex="-1" href="#while-循环"><span class="icon icon-link"></span></a>While 循环</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> <span class="token keyword">mut</span> check <span class="token operator">=</span> <span class="token number">0</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">while</span> check <span class="token operator"><</span> <span class="token number">11</span><span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"check 是：{check}"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> check<span class="token operator">+=</span><span class="token number">1</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"递增后：{check}"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token keyword">if</span> check <span class="token operator">==</span> <span class="token number">10</span><span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token keyword">break</span><span class="token punctuation">;</span> <span class="token comment">// 停止 while</span>
|
||
</span><span class="code-line"> <span class="token punctuation">}</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="loop-关键字"><a aria-hidden="true" tabindex="-1" href="#loop-关键字"><span class="icon icon-link"></span></a>Loop 关键字</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">loop</span> <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"你好，世界永远！"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span></code></pre>
|
||
<p>无限循环表示</p>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="break-中断语句"><a aria-hidden="true" tabindex="-1" href="#break-中断语句"><span class="icon icon-link"></span></a>Break 中断语句</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> <span class="token keyword">mut</span> i <span class="token operator">=</span> <span class="token number">1</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">loop</span> <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"i 是 {i}"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token keyword">if</span> i <span class="token operator">></span> <span class="token number">100</span> <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token keyword">break</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token punctuation">}</span>
|
||
</span><span class="code-line"> i <span class="token operator">*=</span> <span class="token number">2</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="continue-继续声明"><a aria-hidden="true" tabindex="-1" href="#continue-继续声明"><span class="icon icon-link"></span></a>Continue 继续声明</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">for</span> <span class="token punctuation">(</span>v<span class="token punctuation">,</span> c<span class="token punctuation">)</span> <span class="token keyword">in</span> <span class="token punctuation">(</span><span class="token number">0</span><span class="token punctuation">..</span><span class="token number">10</span><span class="token operator">+</span><span class="token number">1</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">enumerate</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"{c} 数字循环"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token keyword">if</span> v <span class="token operator">==</span> <span class="token number">9</span><span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"我们继续？"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token keyword">continue</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token punctuation">}</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">{</span><span class="token string">"v 的值为：{v}"</span><span class="token punctuation">}</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span></code></pre>
|
||
</div></div></div></div></div><div class="wrap h2body-exist"><div class="wrap-header h2wrap"><h2 id="rust-函数"><a aria-hidden="true" tabindex="-1" href="#rust-函数"><span class="icon icon-link"></span></a>Rust 函数</h2><div class="wrap-body">
|
||
</div></div><div class="h2wrap-body"><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="基本函数"><a aria-hidden="true" tabindex="-1" href="#基本函数"><span class="icon icon-link"></span></a>基本函数</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">fn</span> <span class="token function-definition function">print_message</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"Hello, Quick Reference!"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span><span class="code-line"><span class="token keyword">fn</span> <span class="token function-definition function">main</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token comment">// 在 Rust 中调用函数</span>
|
||
</span><span class="code-line"> <span class="token function">print_message</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="按值传递"><a aria-hidden="true" tabindex="-1" href="#按值传递"><span class="icon icon-link"></span></a>按值传递</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">fn</span> <span class="token function-definition function">main</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
|
||
</span><span class="code-line"><span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token keyword">let</span> x<span class="token punctuation">:</span><span class="token keyword">u32</span> <span class="token operator">=</span> <span class="token number">10</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token keyword">let</span> y<span class="token punctuation">:</span><span class="token keyword">u32</span> <span class="token operator">=</span> <span class="token number">20</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line">
|
||
</span><span class="code-line"> <span class="token comment">// => 200</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"计算: {}"</span><span class="token punctuation">,</span> <span class="token function">cal_rect</span><span class="token punctuation">(</span>x<span class="token punctuation">,</span> y<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span><span class="code-line"><span class="token keyword">fn</span> <span class="token function-definition function">cal_rect</span><span class="token punctuation">(</span>x<span class="token punctuation">:</span><span class="token keyword">u32</span><span class="token punctuation">,</span> y<span class="token punctuation">:</span><span class="token keyword">u32</span><span class="token punctuation">)</span> <span class="token punctuation">-></span> <span class="token keyword">u32</span>
|
||
</span><span class="code-line"><span class="token punctuation">{</span>
|
||
</span><span class="code-line"> x <span class="token operator">*</span> y
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="通过引用传递"><a aria-hidden="true" tabindex="-1" href="#通过引用传递"><span class="icon icon-link"></span></a>通过引用传递</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">fn</span> <span class="token function-definition function">main</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token keyword">let</span> <span class="token keyword">mut</span> by_ref <span class="token operator">=</span> <span class="token number">3</span><span class="token punctuation">;</span> <span class="token comment">// => 3</span>
|
||
</span><span class="code-line"> <span class="token function">power_of_three</span><span class="token punctuation">(</span><span class="token operator">&</span><span class="token keyword">mut</span> by_ref<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"{by_ref}"</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// => 9</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span><span class="code-line"><span class="token keyword">fn</span> <span class="token function-definition function">power_of_three</span><span class="token punctuation">(</span>by_ref<span class="token punctuation">:</span> <span class="token operator">&</span><span class="token keyword">mut</span> <span class="token keyword">i32</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token comment">// 取消引用很重要</span>
|
||
</span><span class="code-line"> <span class="token operator">*</span>by_ref <span class="token operator">=</span> <span class="token operator">*</span>by_ref <span class="token operator">*</span> <span class="token operator">*</span>by_ref<span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"{by_ref}"</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// => 9</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="返回"><a aria-hidden="true" tabindex="-1" href="#返回"><span class="icon icon-link"></span></a>返回</h3><div class="wrap-body">
|
||
<pre class="wrap-text "><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">fn</span> <span class="token function-definition function">main</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token keyword">let</span> <span class="token punctuation">(</span><span class="token keyword">mut</span> radius<span class="token punctuation">,</span> <span class="token keyword">mut</span> pi<span class="token punctuation">)</span> <span class="token operator">=</span> <span class="token punctuation">(</span><span class="token number">3.0</span><span class="token punctuation">,</span> <span class="token number">3.14</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token keyword">let</span><span class="token punctuation">(</span>area<span class="token punctuation">,</span> _perimeter<span class="token punctuation">)</span> <span class="token operator">=</span> <span class="token function">calculate</span> <span class="token punctuation">(</span>
|
||
</span><span class="code-line"> <span class="token operator">&</span><span class="token keyword">mut</span> radius<span class="token punctuation">,</span>
|
||
</span><span class="code-line"> <span class="token operator">&</span><span class="token keyword">mut</span> pi
|
||
</span><span class="code-line"> <span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"圆的面积和周长为：{area} & {_perimeter}"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span><span class="code-line"><span class="token keyword">fn</span> <span class="token function-definition function">calculate</span><span class="token punctuation">(</span>radius <span class="token punctuation">:</span> <span class="token operator">&</span><span class="token keyword">mut</span> <span class="token keyword">f64</span><span class="token punctuation">,</span> pi<span class="token punctuation">:</span> <span class="token operator">&</span><span class="token keyword">mut</span> <span class="token keyword">f64</span><span class="token punctuation">)</span> <span class="token punctuation">-></span> <span class="token punctuation">(</span><span class="token keyword">f64</span><span class="token punctuation">,</span> <span class="token keyword">f64</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token keyword">let</span> perimeter <span class="token operator">=</span> <span class="token number">2.0</span> <span class="token operator">*</span> <span class="token operator">*</span>pi <span class="token operator">*</span> <span class="token operator">*</span>radius<span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token keyword">let</span> area <span class="token operator">=</span> <span class="token operator">*</span>pi <span class="token operator">*</span> <span class="token operator">*</span>radius <span class="token operator">*</span> <span class="token operator">*</span>radius<span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token keyword">return</span> <span class="token punctuation">(</span>area<span class="token punctuation">,</span> perimeter<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span></code></pre>
|
||
<!--rehype:className=wrap-text -->
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="数组作为参数"><a aria-hidden="true" tabindex="-1" href="#数组作为参数"><span class="icon icon-link"></span></a>数组作为参数</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">fn</span> <span class="token function-definition function">main</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token keyword">let</span> <span class="token keyword">mut</span> array<span class="token punctuation">:</span> <span class="token punctuation">[</span><span class="token keyword">i32</span> <span class="token punctuation">;</span> <span class="token number">5</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token number">3</span><span class="token punctuation">,</span><span class="token number">4</span><span class="token punctuation">,</span><span class="token number">6</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token function">print_arrays</span><span class="token punctuation">(</span>array<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"元素：{array:?}"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span><span class="code-line"><span class="token keyword">fn</span> <span class="token function-definition function">print_arrays</span><span class="token punctuation">(</span><span class="token keyword">mut</span> array<span class="token punctuation">:</span><span class="token punctuation">[</span><span class="token keyword">i32</span><span class="token punctuation">;</span> <span class="token number">5</span><span class="token punctuation">]</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> array<span class="token punctuation">[</span><span class="token number">0</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token number">89</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> array<span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token number">90</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> array<span class="token punctuation">[</span><span class="token number">2</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token number">91</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> array<span class="token punctuation">[</span><span class="token number">3</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token number">92</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> array<span class="token punctuation">[</span><span class="token number">4</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token number">93</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"元素：{array:?}"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span></code></pre>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="返回数组"><a aria-hidden="true" tabindex="-1" href="#返回数组"><span class="icon icon-link"></span></a>返回数组</h3><div class="wrap-body">
|
||
<pre class="wrap-text "><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">fn</span> <span class="token function-definition function">main</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token keyword">let</span> <span class="token keyword">mut</span> arr<span class="token punctuation">:</span><span class="token punctuation">[</span><span class="token keyword">i32</span><span class="token punctuation">;</span> <span class="token number">5</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token number">4</span><span class="token punctuation">,</span><span class="token number">6</span><span class="token punctuation">,</span><span class="token number">8</span><span class="token punctuation">,</span><span class="token number">10</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token function">multiply</span><span class="token punctuation">(</span>arr<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"数组是：{:?}"</span><span class="token punctuation">,</span> <span class="token function">multiply</span><span class="token punctuation">(</span>arr<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span><span class="code-line"><span class="token keyword">fn</span> <span class="token function-definition function">multiply</span> <span class="token punctuation">(</span><span class="token keyword">mut</span> arr<span class="token punctuation">:</span> <span class="token punctuation">[</span><span class="token keyword">i32</span> <span class="token punctuation">;</span> <span class="token number">5</span><span class="token punctuation">]</span><span class="token punctuation">)</span> <span class="token punctuation">-></span> <span class="token punctuation">[</span><span class="token keyword">i32</span> <span class="token punctuation">;</span> <span class="token number">5</span><span class="token punctuation">]</span><span class="token punctuation">{</span>
|
||
</span><span class="code-line"> arr<span class="token punctuation">[</span><span class="token number">2</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token number">90</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token keyword">for</span> <span class="token keyword">mut</span> i <span class="token keyword">in</span> <span class="token number">0</span><span class="token punctuation">..</span><span class="token number">5</span> <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> arr<span class="token punctuation">[</span>i<span class="token punctuation">]</span> <span class="token operator">=</span> arr<span class="token punctuation">[</span>i<span class="token punctuation">]</span> <span class="token operator">*</span> arr<span class="token punctuation">[</span><span class="token number">2</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"> <span class="token punctuation">}</span>
|
||
</span><span class="code-line"> <span class="token keyword">return</span> arr<span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span></code></pre>
|
||
<!--rehype:className=wrap-text -->
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="泛型函数"><a aria-hidden="true" tabindex="-1" href="#泛型函数"><span class="icon icon-link"></span></a>泛型函数</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">use</span> <span class="token namespace">std<span class="token punctuation">::</span>fmt<span class="token punctuation">::</span></span><span class="token class-name">Debug</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">fn</span> <span class="token function-definition function">foo</span><span class="token operator"><</span><span class="token class-name">T</span><span class="token operator">></span><span class="token punctuation">(</span>x<span class="token punctuation">:</span> <span class="token operator">&</span><span class="token punctuation">[</span><span class="token class-name">T</span><span class="token punctuation">]</span><span class="token punctuation">)</span> <span class="token keyword">where</span> <span class="token class-name">T</span><span class="token punctuation">:</span> <span class="token class-name">Debug</span> <span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token comment">// 省略细节</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span><span class="code-line"><span class="token function">foo</span><span class="token punctuation">(</span><span class="token operator">&</span><span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">2</span><span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
</div></div></div></div></div><div class="wrap h2body-exist"><div class="wrap-header h2wrap"><h2 id="杂项"><a aria-hidden="true" tabindex="-1" href="#杂项"><span class="icon icon-link"></span></a>杂项</h2><div class="wrap-body">
|
||
</div></div><div class="h2wrap-body"><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="类型断言-type-casting"><a aria-hidden="true" tabindex="-1" href="#类型断言-type-casting"><span class="icon icon-link"></span></a>类型断言 type-casting</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> a_int <span class="token operator">=</span> <span class="token number">90</span><span class="token punctuation">;</span> <span class="token comment">// int</span>
|
||
</span><span class="code-line"><span class="token comment">// int 到 float</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> <span class="token keyword">mut</span> type_cast <span class="token operator">=</span> <span class="token punctuation">(</span>a_int <span class="token keyword">as</span> <span class="token keyword">f64</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
<hr>
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> orginal<span class="token punctuation">:</span> <span class="token keyword">char</span> <span class="token operator">=</span> <span class="token char">'I'</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token comment">// char 到 int => 73</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> type_casted<span class="token punctuation">:</span> <span class="token keyword">i64</span> <span class="token operator">=</span> orginal <span class="token keyword">as</span> <span class="token keyword">i64</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
<p>要在 <code>Rust</code> 中执行类型转换，必须使用 <code>as</code> 关键字</p>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="借用"><a aria-hidden="true" tabindex="-1" href="#借用"><span class="icon icon-link"></span></a>借用</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> <span class="token keyword">mut</span> foo <span class="token operator">=</span> <span class="token number">4</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> <span class="token keyword">mut</span> borrowed_foo <span class="token operator">=</span> <span class="token operator">&</span>foo<span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"{borrowed_foo}"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
<hr>
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> <span class="token keyword">mut</span> bar <span class="token operator">=</span> <span class="token number">3</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> <span class="token keyword">mut</span> mutable_borrowed_bar <span class="token operator">=</span> <span class="token operator">&</span><span class="token keyword">mut</span> bar<span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"{mutable_borrowed_bar}"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
<p>这里借用的值使用 <code>&</code> 运算符从值一中借用值</p>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="解引用"><a aria-hidden="true" tabindex="-1" href="#解引用"><span class="icon icon-link"></span></a>解引用</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token keyword">let</span> <span class="token keyword">mut</span> borrow <span class="token operator">=</span> <span class="token number">10</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token keyword">let</span> deref <span class="token operator">=</span> <span class="token operator">&</span><span class="token keyword">mut</span> borrow<span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"{}"</span><span class="token punctuation">,</span> <span class="token operator">*</span>deref<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
<p><code>*</code> 操作符用于解引用</p>
|
||
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="作用域"><a aria-hidden="true" tabindex="-1" href="#作用域"><span class="icon icon-link"></span></a>作用域</h3><div class="wrap-body">
|
||
<pre class="language-rust"><code class="language-rust code-highlight"><span class="code-line"><span class="token punctuation">{</span>
|
||
</span><span class="code-line"> <span class="token comment">// 范围仅限于此大括号</span>
|
||
</span><span class="code-line"> <span class="token keyword">let</span> a_number <span class="token operator">=</span> <span class="token number">1</span><span class="token punctuation">;</span>
|
||
</span><span class="code-line"><span class="token punctuation">}</span>
|
||
</span><span class="code-line"><span class="token macro property">println!</span><span class="token punctuation">(</span><span class="token string">"{a_number}"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</span></code></pre>
|
||
<p>这将产生错误，因为变量 <code>a_number</code> 的生命周期在大括号处结束</p>
|
||
</div></div></div></div></div><div class="wrap h2body-not-exist"><div class="wrap-header h2wrap"><h2 id="另见"><a aria-hidden="true" tabindex="-1" href="#另见"><span class="icon icon-link"></span></a>另见</h2><div class="wrap-body">
|
||
<ul>
|
||
<li><a href="./cargo.html">Cargo 备忘清单</a> <em>(jaywcjlove.github.io)</em></li>
|
||
<li><a href="https://doc.rust-lang.org/book/ch00-00-introduction.html">The Rust Document</a> <em>(doc.rust-lang.org)</em></li>
|
||
<li><a href="https://doc.rust-lang.org/reference/introduction.html">The Rust Reference</a> <em>(doc.rust-lang.org)</em></li>
|
||
<li><a href="https://phaiax.github.io/rust-cheatsheet/">Rust Cheatsheet</a> <em>(phaiax.github.io)</em></li>
|
||
<li><a href="https://jaywcjlove.github.io/rust-cn-document-for-docker/std/std/">Rust 标准库文档中文版</a> <em>(jaywcjlove.github.io)</em></li>
|
||
<li><a href="https://jaywcjlove.github.io/rust-cn-document-for-docker/book/">Rust 程序设计语言 中文版</a> <em>(jaywcjlove.github.io)</em></li>
|
||
<li><a href="https://jaywcjlove.github.io/rust-cn-document-for-docker/rust-by-example-cn/">Rust By Example 中文版</a> <em>(jaywcjlove.github.io)</em></li>
|
||
<li><a href="https://jaywcjlove.github.io/rust-cn-document-for-docker/reference/">Rust 参考手册中文版</a> <em>(jaywcjlove.github.io)</em></li>
|
||
<li><a href="https://jaywcjlove.github.io/rust-cn-document-for-docker/rustdoc/">RustDoc 手册中文版</a> <em>(jaywcjlove.github.io)</em></li>
|
||
<li><a href="https://jaywcjlove.github.io/rust-cn-document-for-docker/rust-cookbook/">Rust Cookbook 中文版</a> <em>(jaywcjlove.github.io)</em></li>
|
||
</ul>
|
||
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