buyfakett/reference
1
0
Fork 0
mirror of https://github.com/jaywcjlove/reference.git synced 2025-06-18 21:21:21 +08:00
Code Issues Packages Projects Releases Wiki Activity

doc: Update c.md (#426)

Browse Source 
修改了初始化,声明和定义的区别注释 b3cf04d323
This commit is contained in:
jaywcjlove
2023-09-10 07:34:16 +00:00
parent 0c10c5d6b2
commit dfc164bd96
3 changed files with 63 additions and 59 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
docs/c.html
View File

@ -42,10 +42,10 @@
</span><span class="code-line"> <span class="token keyword">return</span> <span class="token number">0</span><span class="token punctuation">;</span>
</span><span class="code-line"><span class="token punctuation">}</span>
</span></code></pre>
<p>使用 <code>gcc</code> 编译 <code>hello.c</code> 文件</p>
<p>使用 <code>gcc</code> 编译 <code>hello.c</code> 源文件</p>
<pre class="language-bash"><code class="language-bash code-highlight"><span class="code-line">$ gcc <span class="token parameter variable">-o</span> hello hello.c
</span></code></pre>
<p>运行编译后的二进制文件(<code>hello</code>)</p>
<p>运行编译后的二进制文件可执行文件(<code>hello</code>)</p>
<pre class="language-bash"><code class="language-bash code-highlight"><span class="code-line">$ ./hello
</span><span class="code-line"><span class="token comment"># 输出 => Hello World</span>
</span></code></pre>
@ -53,8 +53,8 @@
<!--rehype:wrap-class=row-span-2-->
<pre class="language-c"><code class="language-c code-highlight"><span class="code-line"><span class="token keyword">int</span> myNum <span class="token operator">=</span> <span class="token number">15</span><span class="token punctuation">;</span>
</span><span class="code-line">
</span><span class="code-line"><span class="token keyword">int</span> myNum2<span class="token punctuation">;</span> <span class="token comment">// 不赋值，然后再赋值</span>
</span><span class="code-line">myNum2 <span class="token operator">=</span> <span class="token number">15</span><span class="token punctuation">;</span>
</span><span class="code-line"><span class="token keyword">int</span> myNum2<span class="token punctuation">;</span> <span class="token comment">// 声明变量 myNum2</span>
</span><span class="code-line">myNum2 <span class="token operator">=</span> <span class="token number">15</span><span class="token punctuation">;</span> <span class="token comment">// 变量声明后第一次赋值我们称为初始化,如果 初始化 和 赋值 在同一行,那么我们可以直接称为 定义变量 myNum2</span>
</span><span class="code-line">
</span><span class="code-line"><span class="token keyword">int</span> myNum3 <span class="token operator">=</span> <span class="token number">15</span><span class="token punctuation">;</span> <span class="token comment">// myNum3 值为 15</span>
</span><span class="code-line">myNum3 <span class="token operator">=</span> <span class="token number">10</span><span class="token punctuation">;</span> <span class="token comment">// 现在 myNum3 值为 10</span>
@ -69,6 +69,8 @@
</span><span class="code-line"><span class="token keyword">int</span> x <span class="token operator">=</span> <span class="token number">5</span><span class="token punctuation">,</span> y <span class="token operator">=</span> <span class="token number">6</span><span class="token punctuation">,</span> z <span class="token operator">=</span> <span class="token number">50</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="常量-constants"><a aria-hidden="true" tabindex="-1" href="#常量-constants"><span class="icon icon-link"></span></a>常量 Constants</h3><div class="wrap-body">
<p>注释
常量在 C 语言中我们一般理解为不能被改变的值,活用常量与符号常量</p>
<pre class="language-c"><code class="language-c code-highlight"><span class="code-line"><span class="token keyword">const</span> <span class="token keyword">int</span> minutesPerHour <span class="token operator">=</span> <span class="token number">60</span><span class="token punctuation">;</span>
</span><span class="code-line"><span class="token keyword">const</span> <span class="token keyword">float</span> PI <span class="token operator">=</span> <span class="token number">3.14</span><span class="token punctuation">;</span>
</span></code></pre>