feat: add matlab.md cheatsheet (#21). 02d0a495a6

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jaywcjlove
2022-11-04 13:08:05 +00:00
parent 98127ce694
commit 3a8626d210
73 changed files with 4673 additions and 419 deletions

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@ -208,7 +208,7 @@
</span><span class="code-line"> template <span class="token operator">=</span> loader<span class="token punctuation">.</span>get_template<span class="token punctuation">(</span><span class="token string">'myfirst.html'</span><span class="token punctuation">)</span>
</span><span class="code-line"> <span class="token keyword">return</span> HttpResponse<span class="token punctuation">(</span>template<span class="token punctuation">.</span>render<span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
</span></code></pre>
</div></div><div class="h3wrap-body"><h4 id="更改设置"><a aria-hidden="true" tabindex="-1" href="#更改设置"><span class="icon icon-link"></span></a>更改设置</h4>
<h4 id="更改设置"><a aria-hidden="true" tabindex="-1" href="#更改设置"><span class="icon icon-link"></span></a>更改设置</h4>
<p>为了能够处理比“Hello World”更复杂的东西我们必须告诉 <code>Django</code> 一个新的应用程序已创建</p>
<p>这是在 <code>myworld</code> 文件夹的 <code>myworld/settings.py</code> 文件中完成的。查找 <code>INSTALLED_APPS[]</code> 列表并添加成员应用程序,如下所示:</p>
<pre class="language-py"><code class="language-py code-highlight"><span class="code-line">INSTALLED_APPS <span class="token operator">=</span> <span class="token punctuation">[</span>
@ -228,7 +228,7 @@
<pre class="language-bash"><code class="language-bash code-highlight"><span class="code-line">$ py manage.py runserver
</span></code></pre>
<p>在浏览器窗口的地址栏中输入 127.0.0.1:8000/members/</p>
</div></div><div class="wrap h3body-not-exist col-span-2"><div class="wrap-header h3wrap"><h3 id="创建表模型"><a aria-hidden="true" tabindex="-1" href="#创建表模型"><span class="icon icon-link"></span></a>创建表(模型)</h3><div class="wrap-body">
</div></div></div><div class="wrap h3body-not-exist col-span-2"><div class="wrap-header h3wrap"><h3 id="创建表模型"><a aria-hidden="true" tabindex="-1" href="#创建表模型"><span class="icon icon-link"></span></a>创建表(模型)</h3><div class="wrap-body">
<!--rehype:wrap-class=col-span-2-->
<p><code>/members/</code> 文件夹中,打开 <code>models.py</code> 文件。要在我们的数据库中添加成员表,首先创建一个成员类,并描述其中的表字段:</p>
<pre class="language-py"><code class="language-py code-highlight"><span class="code-line"><span class="token keyword">from</span> django<span class="token punctuation">.</span>db <span class="token keyword">import</span> models
@ -440,14 +440,14 @@
</span><span class="code-line"> <span class="token tag"><span class="token tag"><span class="token punctuation">&#x3C;</span>h1</span><span class="token punctuation">></span></span>欢迎女士们先生们<span class="token tag"><span class="token tag"><span class="token punctuation">&#x3C;/</span>h1</span><span class="token punctuation">></span></span>
</span><span class="code-line"><span class="token django language-django"><span class="token delimiter punctuation">{%</span> <span class="token tag keyword">endcomment</span> <span class="token delimiter punctuation">%}</span></span>
</span></code></pre>
</div></div><div class="h3wrap-body"><h4 id="注释描述"><a aria-hidden="true" tabindex="-1" href="#注释描述"><span class="icon icon-link"></span></a>注释描述</h4>
<h4 id="注释描述"><a aria-hidden="true" tabindex="-1" href="#注释描述"><span class="icon icon-link"></span></a>注释描述</h4>
<pre class="language-django"><code class="language-django code-highlight"><span class="code-line"><span class="token tag"><span class="token tag"><span class="token punctuation">&#x3C;</span>h1</span><span class="token punctuation">></span></span>欢迎大家<span class="token django language-django"><span class="token comment">{# 较小的注释 #}</span></span><span class="token tag"><span class="token tag"><span class="token punctuation">&#x3C;/</span>h1</span><span class="token punctuation">></span></span>
</span><span class="code-line"><span class="token django language-django"><span class="token delimiter punctuation">{%</span> <span class="token tag keyword">comment</span> <span class="token string">"这是最初的欢迎信息"</span> <span class="token delimiter punctuation">%}</span></span>
</span><span class="code-line"> <span class="token tag"><span class="token tag"><span class="token punctuation">&#x3C;</span>h1</span><span class="token punctuation">></span></span>欢迎女士们先生们<span class="token tag"><span class="token tag"><span class="token punctuation">&#x3C;/</span>h1</span><span class="token punctuation">></span></span>
</span><span class="code-line"><span class="token django language-django"><span class="token delimiter punctuation">{%</span> <span class="token tag keyword">endcomment</span> <span class="token delimiter punctuation">%}</span></span>
</span></code></pre>
<p>注释允许您拥有应该被忽略的代码部分</p>
</div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="双过滤值"><a aria-hidden="true" tabindex="-1" href="#双过滤值"><span class="icon icon-link"></span></a>双过滤值</h3><div class="wrap-body">
</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="双过滤值"><a aria-hidden="true" tabindex="-1" href="#双过滤值"><span class="icon icon-link"></span></a>双过滤值</h3><div class="wrap-body">
<pre class="language-django"><code class="language-django code-highlight"><span class="code-line"><span class="token tag"><span class="token tag"><span class="token punctuation">&#x3C;</span>h1</span><span class="token punctuation">></span></span>你好 <span class="token django language-django"><span class="token delimiter punctuation">{{</span> <span class="token variable">firstname</span><span class="token operator">|</span><span class="token filter function">first</span><span class="token operator">|</span><span class="token filter function">upper</span> <span class="token delimiter punctuation">}}</span></span>,你好吗?<span class="token tag"><span class="token tag"><span class="token punctuation">&#x3C;/</span>h1</span><span class="token punctuation">></span></span>
</span></code></pre>
<p>返回变量 <code>firstname</code> 的第一个字符,小写</p>
@ -983,7 +983,7 @@
<li><a href="https://www.w3cschool.cn/django4/">Django 4 中文教程</a> <em>(w3cschool.cn)</em></li>
<li><a href="https://www.w3schools.com/django/index.php">Django Tutorial</a> <em>(w3schools.com)</em></li>
</ul>
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