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                    前言
            
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                    第1章 入门
            
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                    1-1 前端的发展
            
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                    1-2 常见的构建工具及对比
            
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                    1-3 安装与使用
            
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                    1-4 使用 Loader
            
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                    1-5 使用 Plugin
            
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                    1-6 使用 DevServer
            
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                    1-7 核心概念
            
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                    第2章 配置
            
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                    2-1 Entry
            
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                    2-2 Output
            
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                    2-3 Module
            
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                    2-4 Resolve
            
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                    2-5 Plugins
            
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                    2-6 DevServer
            
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                    2-7 其它配置项
            
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                    2-8 整体配置结构
            
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                    2-9 多种配置类型
            
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                    2-10 配置总结
            
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                    第3章 实战
            
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                    3-1 使用 ES6 语言
            
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                    3-2 使用 TypeScript 语言
            
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                    3-3 使用 Flow 检查器
            
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                    3-4 使用 SCSS
            
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                    3-5 使用 PostCSS
            
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                    3-6 使用 React 框架
            
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                    3-7 使用 Vue 框架
            
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                    3-8 使用 Angular2 框架
            
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                    3-9 为单页应用生成 HTML
            
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                    3-10 管理多个单页应用
            
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                    3-11 构建同构应用
            
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                    3-12 构建 Electron 应用
            
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                    3-13 构建 Npm 模块
            
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                    3-14 构建离线应用
            
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                    3-15 搭配 Npm Script
            
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                    3-16 检查代码
            
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                    3-17 通过 Node.js API 启动 Webpack
            
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                    3-18 使用 Webpack Dev Middleware
            
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                    3-19 加载图片
            
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                    3-20 加载SVG
            
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                    3-21 加载 Source Map
            
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                    3-22 实战总结
            
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                    第4章 优化
            
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<li class="chapter " data-level="1.6.1" data-path="4-1缩小文件搜索范围.html">
  
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                    4-1 缩小文件搜索范围
            
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                    4-2 使用 DllPlugin
            
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                    4-3 使用 HappyPack
            
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                    4-4 使用 ParallelUglifyPlugin
            
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                    4-5 使用自动刷新
            
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                    4-6 开启模块热替换
            
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                    4-7 区分环境
            
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                    4-8 压缩代码
            
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<li class="chapter active" data-level="1.6.9" data-path="4-9CDN加速.html">
  
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                    4-9 CDN 加速
            
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<li class="chapter " data-level="1.6.10" data-path="4-10使用TreeShaking.html">
  
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                    4-10 使用 Tree Shaking
            
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<li class="chapter " data-level="1.6.11" data-path="4-11提取公共代码.html">
  
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                    4-11 提取公共代码
            
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                    4-12 按需加载
            
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<li class="chapter " data-level="1.6.13" data-path="4-13使用Prepack.html">
  
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                    4-13 使用 Prepack
            
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<li class="chapter " data-level="1.6.14" data-path="4-14开启ScopeHoisting.html">
  
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                    4-14 开启 Scope Hoisting
            
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<li class="chapter " data-level="1.6.15" data-path="4-15输出分析.html">
  
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                    4-15 输出分析
            
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                    5-2 输出文件分析
            
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                    5-3 编写 Loader
            
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                    常用 Loaders
            
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                    常用 Plugins
            
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                    其它 Webpack 学习资源
            
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        <a href=".." >4-9 CDN 加速</a>
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                                <h1 id="4-9-cdn-&#x52A0;&#x901F;">4-9 CDN &#x52A0;&#x901F;</h1>
<h2 id="&#x4EC0;&#x4E48;&#x662F;-cdn">&#x4EC0;&#x4E48;&#x662F; CDN</h2>
<p>&#x867D;&#x7136;&#x524D;&#x9762;&#x901A;&#x8FC7;&#x4E86;&#x538B;&#x7F29;&#x4EE3;&#x7801;&#x7684;&#x624B;&#x6BB5;&#x6765;&#x51CF;&#x5C0F;&#x7F51;&#x7EDC;&#x4F20;&#x8F93;&#x5927;&#x5C0F;&#xFF0C;&#x4F46;&#x5B9E;&#x9645;&#x4E0A;&#x6700;&#x5F71;&#x54CD;&#x7528;&#x6237;&#x4F53;&#x9A8C;&#x7684;&#x8FD8;&#x662F;&#x7F51;&#x9875;&#x9996;&#x6B21;&#x6253;&#x5F00;&#x65F6;&#x7684;&#x52A0;&#x8F7D;&#x7B49;&#x5F85;&#x3002;
&#x5BFC;&#x81F4;&#x8FD9;&#x4E2A;&#x95EE;&#x9898;&#x7684;&#x6839;&#x672C;&#x662F;&#x7F51;&#x7EDC;&#x4F20;&#x8F93;&#x8FC7;&#x7A0B;&#x8017;&#x65F6;&#x5927;&#xFF0C;CDN &#x7684;&#x4F5C;&#x7528;&#x5C31;&#x662F;&#x52A0;&#x901F;&#x7F51;&#x7EDC;&#x4F20;&#x8F93;&#x3002;</p>
<p>CDN &#x53C8;&#x53EB;&#x5185;&#x5BB9;&#x5206;&#x53D1;&#x7F51;&#x7EDC;&#xFF0C;&#x901A;&#x8FC7;&#x628A;&#x8D44;&#x6E90;&#x90E8;&#x7F72;&#x5230;&#x4E16;&#x754C;&#x5404;&#x5730;&#xFF0C;&#x7528;&#x6237;&#x5728;&#x8BBF;&#x95EE;&#x65F6;&#x6309;&#x7167;&#x5C31;&#x8FD1;&#x539F;&#x5219;&#x4ECE;&#x79BB;&#x7528;&#x6237;&#x6700;&#x8FD1;&#x7684;&#x670D;&#x52A1;&#x5668;&#x83B7;&#x53D6;&#x8D44;&#x6E90;&#xFF0C;&#x4ECE;&#x800C;&#x52A0;&#x901F;&#x8D44;&#x6E90;&#x7684;&#x83B7;&#x53D6;&#x901F;&#x5EA6;&#x3002;
CDN &#x5176;&#x5B9E;&#x662F;&#x901A;&#x8FC7;&#x4F18;&#x5316;&#x7269;&#x7406;&#x94FE;&#x8DEF;&#x5C42;&#x4F20;&#x8F93;&#x8FC7;&#x7A0B;&#x4E2D;&#x7684;&#x7F51;&#x901F;&#x6709;&#x9650;&#x3001;&#x4E22;&#x5305;&#x7B49;&#x95EE;&#x9898;&#x6765;&#x63D0;&#x5347;&#x7F51;&#x901F;&#x7684;&#xFF0C;&#x5176;&#x5927;&#x81F4;&#x539F;&#x7406;&#x53EF;&#x4EE5;&#x5982;&#x4E0B;&#xFF1A;</p>
<p><img src="img/4-9cdn-arch.png" alt="&#x56FE;4-9-1 CDN &#x539F;&#x7406;"></p>
<p>&#x5728;&#x672C;&#x8282;&#x4E2D;&#x4F60;&#x4E0D;&#x5FC5;&#x7406;&#x89E3; CDN &#x7684;&#x5177;&#x4F53;&#x8FD0;&#x884C;&#x6D41;&#x7A0B;&#x548C;&#x5B9E;&#x73B0;&#x539F;&#x7406;&#xFF0C;&#x4F60;&#x53EF;&#x4EE5;&#x7B80;&#x5355;&#x7684;&#x628A; CDN &#x670D;&#x52A1;&#x770B;&#x4F5C;&#x6210;&#x901F;&#x5EA6;&#x66F4;&#x5FEB;&#x7684; HTTP &#x670D;&#x52A1;&#x3002;
&#x5E76;&#x4E14;&#x76EE;&#x524D;&#x5F88;&#x591A;&#x5927;&#x516C;&#x53F8;&#x90FD;&#x4F1A;&#x5EFA;&#x7ACB;&#x81EA;&#x5DF1;&#x7684; CDN &#x670D;&#x52A1;&#xFF0C;&#x5C31;&#x7B97;&#x4F60;&#x81EA;&#x5DF1;&#x6CA1;&#x6709;&#x8D44;&#x6E90;&#x53BB;&#x642D;&#x5EFA;&#x4E00;&#x5957; CDN &#x670D;&#x52A1;&#xFF0C;&#x5404;&#x5927;&#x4E91;&#x670D;&#x52A1;&#x63D0;&#x4F9B;&#x5546;&#x90FD;&#x63D0;&#x4F9B;&#x4E86;&#x6309;&#x91CF;&#x6536;&#x8D39;&#x7684; CDN &#x670D;&#x52A1;&#x3002;</p>
<h2 id="&#x63A5;&#x5165;-cdn">&#x63A5;&#x5165; CDN</h2>
<p>&#x8981;&#x7ED9;&#x7F51;&#x7AD9;&#x63A5;&#x5165; CDN&#xFF0C;&#x9700;&#x8981;&#x628A;&#x7F51;&#x9875;&#x7684;&#x9759;&#x6001;&#x8D44;&#x6E90;&#x4E0A;&#x4F20;&#x5230; CDN &#x670D;&#x52A1;&#x4E0A;&#x53BB;&#xFF0C;&#x5728;&#x670D;&#x52A1;&#x8FD9;&#x4E9B;&#x9759;&#x6001;&#x8D44;&#x6E90;&#x7684;&#x65F6;&#x5019;&#x9700;&#x8981;&#x901A;&#x8FC7; CDN &#x670D;&#x52A1;&#x63D0;&#x4F9B;&#x7684; URL &#x5730;&#x5740;&#x53BB;&#x8BBF;&#x95EE;&#x3002;</p>
<p>&#x4E3E;&#x4E2A;&#x8BE6;&#x7EC6;&#x7684;&#x4F8B;&#x5B50;&#xFF0C;&#x6709;&#x4E00;&#x4E2A;&#x5355;&#x9875;&#x5E94;&#x7528;&#xFF0C;&#x6784;&#x5EFA;&#x51FA;&#x7684;&#x4EE3;&#x7801;&#x7ED3;&#x6784;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code>dist
|-- app_9d89c964.js
|-- app_a6976b6d.css
|-- arch_ae805d49.png
`-- index.html
</code></pre><p>&#x5176;&#x4E2D; <code>index.html</code> &#x5185;&#x5BB9;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code class="lang-html"><span class="hljs-tag">&lt;<span class="hljs-name">html</span>&gt;</span>
<span class="hljs-tag">&lt;<span class="hljs-name">head</span>&gt;</span>
  <span class="hljs-tag">&lt;<span class="hljs-name">meta</span> <span class="hljs-attr">charset</span>=<span class="hljs-string">&quot;UTF-8&quot;</span>&gt;</span>
  <span class="hljs-tag">&lt;<span class="hljs-name">link</span> <span class="hljs-attr">rel</span>=<span class="hljs-string">&quot;stylesheet&quot;</span> <span class="hljs-attr">href</span>=<span class="hljs-string">&quot;app_a6976b6d.css&quot;</span>&gt;</span>
<span class="hljs-tag">&lt;/<span class="hljs-name">head</span>&gt;</span>
<span class="hljs-tag">&lt;<span class="hljs-name">body</span>&gt;</span>
<span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">id</span>=<span class="hljs-string">&quot;app&quot;</span>&gt;</span><span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
<span class="hljs-tag">&lt;<span class="hljs-name">script</span> <span class="hljs-attr">src</span>=<span class="hljs-string">&quot;app_9d89c964.js&quot;</span>&gt;</span><span class="undefined"></span><span class="hljs-tag">&lt;/<span class="hljs-name">script</span>&gt;</span>
<span class="hljs-tag">&lt;/<span class="hljs-name">body</span>&gt;</span>
<span class="hljs-tag">&lt;/<span class="hljs-name">html</span>&gt;</span>
</code></pre>
<p><code>app_a6976b6d.css</code>&#x5185;&#x5BB9;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code class="lang-css"><span class="hljs-selector-tag">body</span>{<span class="hljs-attribute">background</span>:<span class="hljs-built_in">url</span>(arch_ae805d49.png) repeat}<span class="hljs-selector-tag">h1</span>{<span class="hljs-attribute">color</span>:red}
</code></pre>
<p>&#x53EF;&#x4EE5;&#x770B;&#x51FA;&#x5230;&#x5BFC;&#x5165;&#x8D44;&#x6E90;&#x65F6;&#x90FD;&#x662F;&#x901A;&#x8FC7;&#x76F8;&#x5BF9;&#x8DEF;&#x5F84;&#x53BB;&#x8BBF;&#x95EE;&#x7684;&#xFF0C;&#x5F53;&#x628A;&#x8FD9;&#x4E9B;&#x8D44;&#x6E90;&#x90FD;&#x653E;&#x5230;&#x540C;&#x4E00;&#x4E2A; CDN &#x670D;&#x52A1;&#x4E0A;&#x53BB;&#x65F6;&#xFF0C;&#x7F51;&#x9875;&#x662F;&#x80FD;&#x6B63;&#x5E38;&#x4F7F;&#x7528;&#x7684;&#x3002;
&#x4F46;&#x9700;&#x8981;&#x6CE8;&#x610F;&#x7684;&#x662F;&#x7531;&#x4E8E; CDN &#x670D;&#x52A1;&#x4E00;&#x822C;&#x90FD;&#x4F1A;&#x7ED9;&#x8D44;&#x6E90;&#x5F00;&#x542F;&#x5F88;&#x957F;&#x65F6;&#x95F4;&#x7684;&#x7F13;&#x5B58;&#xFF0C;&#x4F8B;&#x5982;&#x7528;&#x6237;&#x4ECE; CDN &#x4E0A;&#x83B7;&#x53D6;&#x5230;&#x4E86; <code>index.html</code> &#x8FD9;&#x4E2A;&#x6587;&#x4EF6;&#x540E;&#xFF0C;
&#x5373;&#x4F7F;&#x4E4B;&#x540E;&#x7684;&#x53D1;&#x5E03;&#x64CD;&#x4F5C;&#x628A; <code>index.html</code> &#x6587;&#x4EF6;&#x7ED9;&#x91CD;&#x65B0;&#x8986;&#x76D6;&#x4E86;&#xFF0C;&#x4F46;&#x662F;&#x7528;&#x6237;&#x5728;&#x5F88;&#x957F;&#x4E00;&#x6BB5;&#x65F6;&#x95F4;&#x5185;&#x8FD8;&#x662F;&#x8FD0;&#x884C;&#x7684;&#x4E4B;&#x524D;&#x7684;&#x7248;&#x672C;&#xFF0C;&#x8FD9;&#x4F1A;&#x65B0;&#x7684;&#x5BFC;&#x81F4;&#x53D1;&#x5E03;&#x4E0D;&#x80FD;&#x7ACB;&#x5373;&#x751F;&#x6548;&#x3002;</p>
<p>&#x8981;&#x907F;&#x514D;&#x4EE5;&#x4E0A;&#x95EE;&#x9898;&#xFF0C;&#x4E1A;&#x754C;&#x6BD4;&#x8F83;&#x6210;&#x719F;&#x7684;&#x505A;&#x6CD5;&#x662F;&#x8FD9;&#x6837;&#x7684;&#xFF1A;</p>
<ul>
<li>&#x9488;&#x5BF9; HTML &#x6587;&#x4EF6;&#xFF1A;&#x4E0D;&#x5F00;&#x542F;&#x7F13;&#x5B58;&#xFF0C;&#x628A; HTML &#x653E;&#x5230;&#x81EA;&#x5DF1;&#x7684;&#x670D;&#x52A1;&#x5668;&#x4E0A;&#xFF0C;&#x800C;&#x4E0D;&#x662F; CDN &#x670D;&#x52A1;&#x4E0A;&#xFF0C;&#x540C;&#x65F6;&#x5173;&#x95ED;&#x81EA;&#x5DF1;&#x670D;&#x52A1;&#x5668;&#x4E0A;&#x7684;&#x7F13;&#x5B58;&#x3002;&#x81EA;&#x5DF1;&#x7684;&#x670D;&#x52A1;&#x5668;&#x53EA;&#x63D0;&#x4F9B; HTML &#x6587;&#x4EF6;&#x548C;&#x6570;&#x636E;&#x63A5;&#x53E3;&#x3002;</li>
<li>&#x9488;&#x5BF9;&#x9759;&#x6001;&#x7684; JavaScript&#x3001;CSS&#x3001;&#x56FE;&#x7247;&#x7B49;&#x6587;&#x4EF6;&#xFF1A;&#x5F00;&#x542F; CDN &#x548C;&#x7F13;&#x5B58;&#xFF0C;&#x4E0A;&#x4F20;&#x5230; CDN &#x670D;&#x52A1;&#x4E0A;&#x53BB;&#xFF0C;&#x540C;&#x65F6;&#x7ED9;&#x6BCF;&#x4E2A;&#x6587;&#x4EF6;&#x540D;&#x5E26;&#x4E0A;&#x7531;&#x6587;&#x4EF6;&#x5185;&#x5BB9;&#x7B97;&#x51FA;&#x7684; Hash &#x503C;&#xFF0C; &#x4F8B;&#x5982;&#x4E0A;&#x9762;&#x7684; <code>app_a6976b6d.css</code> &#x6587;&#x4EF6;&#x3002;
&#x5E26;&#x4E0A; Hash &#x503C;&#x7684;&#x539F;&#x56E0;&#x662F;&#x6587;&#x4EF6;&#x540D;&#x4F1A;&#x968F;&#x7740;&#x6587;&#x4EF6;&#x5185;&#x5BB9;&#x800C;&#x53D8;&#x5316;&#xFF0C;&#x53EA;&#x8981;&#x6587;&#x4EF6;&#x53D1;&#x751F;&#x53D8;&#x5316;&#x5176;&#x5BF9;&#x5E94;&#x7684; URL &#x5C31;&#x4F1A;&#x53D8;&#x5316;&#xFF0C;&#x5B83;&#x5C31;&#x4F1A;&#x88AB;&#x91CD;&#x65B0;&#x4E0B;&#x8F7D;&#xFF0C;&#x65E0;&#x8BBA;&#x7F13;&#x5B58;&#x65F6;&#x95F4;&#x6709;&#x591A;&#x957F;&#x3002;</li>
</ul>
<p>&#x91C7;&#x7528;&#x4EE5;&#x4E0A;&#x65B9;&#x6848;&#x540E;&#xFF0C;&#x5728; HTML &#x6587;&#x4EF6;&#x4E2D;&#x7684;&#x8D44;&#x6E90;&#x5F15;&#x5165;&#x5730;&#x5740;&#x4E5F;&#x9700;&#x8981;&#x6362;&#x6210; CDN &#x670D;&#x52A1;&#x63D0;&#x4F9B;&#x7684;&#x5730;&#x5740;&#xFF0C;&#x4F8B;&#x5982;&#x4EE5;&#x4E0A;&#x7684; <code>index.html</code> &#x53D8;&#x4E3A;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code class="lang-html"><span class="hljs-tag">&lt;<span class="hljs-name">html</span>&gt;</span>
<span class="hljs-tag">&lt;<span class="hljs-name">head</span>&gt;</span>
  <span class="hljs-tag">&lt;<span class="hljs-name">meta</span> <span class="hljs-attr">charset</span>=<span class="hljs-string">&quot;UTF-8&quot;</span>&gt;</span>
  <span class="hljs-tag">&lt;<span class="hljs-name">link</span> <span class="hljs-attr">rel</span>=<span class="hljs-string">&quot;stylesheet&quot;</span> <span class="hljs-attr">href</span>=<span class="hljs-string">&quot;//cdn.com/id/app_a6976b6d.css&quot;</span>&gt;</span>
<span class="hljs-tag">&lt;/<span class="hljs-name">head</span>&gt;</span>
<span class="hljs-tag">&lt;<span class="hljs-name">body</span>&gt;</span>
<span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">id</span>=<span class="hljs-string">&quot;app&quot;</span>&gt;</span><span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
<span class="hljs-tag">&lt;<span class="hljs-name">script</span> <span class="hljs-attr">src</span>=<span class="hljs-string">&quot;//cdn.com/id/app_9d89c964.js&quot;</span>&gt;</span><span class="undefined"></span><span class="hljs-tag">&lt;/<span class="hljs-name">script</span>&gt;</span>
<span class="hljs-tag">&lt;/<span class="hljs-name">body</span>&gt;</span>
<span class="hljs-tag">&lt;/<span class="hljs-name">html</span>&gt;</span>
</code></pre>
<p>&#x5E76;&#x4E14; <code>app_a6976b6d.css</code> &#x7684;&#x5185;&#x5BB9;&#x4E5F;&#x5E94;&#x8BE5;&#x53D8;&#x4E3A;&#x5982;&#x4E0B;&#xFF1A;</p>
<pre><code class="lang-css"><span class="hljs-selector-tag">body</span>{<span class="hljs-attribute">background</span>:<span class="hljs-built_in">url</span>(//cdn.com/id/arch_ae805d49.png) repeat}<span class="hljs-selector-tag">h1</span>{<span class="hljs-attribute">color</span>:red}
</code></pre>
<p>&#x4E5F;&#x5C31;&#x662F;&#x8BF4;&#xFF0C;&#x4E4B;&#x524D;&#x7684;&#x76F8;&#x5BF9;&#x8DEF;&#x5F84;&#xFF0C;&#x90FD;&#x53D8;&#x6210;&#x4E86;&#x7EDD;&#x5BF9;&#x7684;&#x6307;&#x5411; CDN &#x670D;&#x52A1;&#x7684; URL &#x5730;&#x5740;&#x3002;</p>
<blockquote>
<p>&#x5982;&#x679C;&#x4F60;&#x5BF9;&#x5F62;&#x5982; <code>//cdn.com/id/app_a6976b6d.css</code> &#x8FD9;&#x6837;&#x7684; URL &#x611F;&#x5230;&#x964C;&#x751F;&#xFF0C;&#x4F60;&#x9700;&#x8981;&#x77E5;&#x9053;&#x8FD9;&#x79CD; URL &#x7701;&#x6389;&#x4E86;&#x524D;&#x9762;&#x7684; <code>http:</code> &#x6216;&#x8005; <code>https:</code> &#x524D;&#x7F00;&#xFF0C;
&#x8FD9;&#x6837;&#x505A;&#x7684;&#x597D;&#x5904;&#x65F6;&#x5728;&#x8BBF;&#x95EE;&#x8FD9;&#x4E9B;&#x8D44;&#x6E90;&#x7684;&#x65F6;&#x5019;&#x4F1A;&#x81EA;&#x52A8;&#x7684;&#x6839;&#x636E;&#x5F53;&#x524D; HTML &#x7684; URL &#x662F;&#x91C7;&#x7528;&#x4EC0;&#x4E48;&#x6A21;&#x5F0F;&#x53BB;&#x51B3;&#x5B9A;&#x662F;&#x91C7;&#x7528; HTTP &#x8FD8;&#x662F; HTTPS &#x6A21;&#x5F0F;&#x3002;</p>
</blockquote>
<p>&#x9664;&#x6B64;&#x4E4B;&#x5916;&#xFF0C;&#x5982;&#x679C;&#x4F60;&#x8FD8;&#x77E5;&#x9053;&#x6D4F;&#x89C8;&#x5668;&#x6709;&#x4E00;&#x4E2A;&#x89C4;&#x5219;&#x662F;&#x540C;&#x4E00;&#x65F6;&#x523B;&#x9488;&#x5BF9;&#x540C;&#x4E00;&#x4E2A;&#x57DF;&#x540D;&#x7684;&#x8D44;&#x6E90;&#x5E76;&#x884C;&#x8BF7;&#x6C42;&#x662F;&#x6709;&#x9650;&#x5236;&#x7684;&#x8BDD;&#xFF08;&#x5177;&#x4F53;&#x6570;&#x5B57;&#x5927;&#x6982;4&#x4E2A;&#x5DE6;&#x53F3;&#xFF0C;&#x4E0D;&#x540C;&#x6D4F;&#x89C8;&#x5668;&#x53EF;&#x80FD;&#x4E0D;&#x540C;&#xFF09;&#xFF0C;
&#x4F60;&#x4F1A;&#x53D1;&#x73B0;&#x4E0A;&#x9762;&#x7684;&#x505A;&#x6CD5;&#x6709;&#x4E2A;&#x5F88;&#x5927;&#x7684;&#x95EE;&#x9898;&#x3002;&#x7531;&#x4E8E;&#x6240;&#x6709;&#x9759;&#x6001;&#x8D44;&#x6E90;&#x90FD;&#x653E;&#x5230;&#x4E86;&#x540C;&#x4E00;&#x4E2A; CDN &#x670D;&#x52A1;&#x7684;&#x57DF;&#x540D;&#x4E0B;&#xFF0C;&#x4E5F;&#x5C31;&#x662F;&#x4E0A;&#x9762;&#x7684; <code>cdn.com</code>&#x3002;
&#x5982;&#x679C;&#x7F51;&#x9875;&#x7684;&#x8D44;&#x6E90;&#x5F88;&#x591A;&#xFF0C;&#x4F8B;&#x5982;&#x6709;&#x5F88;&#x591A;&#x56FE;&#x7247;&#xFF0C;&#x5C31;&#x4F1A;&#x5BFC;&#x81F4;&#x8D44;&#x6E90;&#x7684;&#x52A0;&#x8F7D;&#x88AB;&#x963B;&#x585E;&#xFF0C;&#x56E0;&#x4E3A;&#x540C;&#x65F6;&#x53EA;&#x80FD;&#x52A0;&#x8F7D;&#x51E0;&#x4E2A;&#xFF0C;&#x5FC5;&#x987B;&#x7B49;&#x5176;&#x5B83;&#x8D44;&#x6E90;&#x52A0;&#x8F7D;&#x5B8C;&#x624D;&#x80FD;&#x7EE7;&#x7EED;&#x52A0;&#x8F7D;&#x3002;
&#x8981;&#x89E3;&#x51B3;&#x8FD9;&#x4E2A;&#x95EE;&#x9898;&#xFF0C;&#x53EF;&#x4EE5;&#x628A;&#x8FD9;&#x4E9B;&#x9759;&#x6001;&#x8D44;&#x6E90;&#x5206;&#x6563;&#x5230;&#x4E0D;&#x540C;&#x7684; CDN &#x670D;&#x52A1;&#x4E0A;&#x53BB;&#xFF0C;
&#x4F8B;&#x5982;&#x628A; JavaScript &#x6587;&#x4EF6;&#x653E;&#x5230; <code>js.cdn.com</code> &#x57DF;&#x540D;&#x4E0B;&#x3001;&#x628A; CSS &#x6587;&#x4EF6;&#x653E;&#x5230; <code>css.cdn.com</code> &#x57DF;&#x540D;&#x4E0B;&#x3001;&#x56FE;&#x7247;&#x6587;&#x4EF6;&#x653E;&#x5230; <code>img.cdn.com</code> &#x57DF;&#x540D;&#x4E0B;&#xFF0C;
&#x8FD9;&#x6837;&#x505A;&#x4E4B;&#x540E; <code>index.html</code> &#x9700;&#x8981;&#x53D8;&#x6210;&#x8FD9;&#x6837;&#xFF1A;</p>
<pre><code class="lang-html"><span class="hljs-tag">&lt;<span class="hljs-name">html</span>&gt;</span>
<span class="hljs-tag">&lt;<span class="hljs-name">head</span>&gt;</span>
  <span class="hljs-tag">&lt;<span class="hljs-name">meta</span> <span class="hljs-attr">charset</span>=<span class="hljs-string">&quot;UTF-8&quot;</span>&gt;</span>
  <span class="hljs-tag">&lt;<span class="hljs-name">link</span> <span class="hljs-attr">rel</span>=<span class="hljs-string">&quot;stylesheet&quot;</span> <span class="hljs-attr">href</span>=<span class="hljs-string">&quot;//css.cdn.com/id/app_a6976b6d.css&quot;</span>&gt;</span>
<span class="hljs-tag">&lt;/<span class="hljs-name">head</span>&gt;</span>
<span class="hljs-tag">&lt;<span class="hljs-name">body</span>&gt;</span>
<span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">id</span>=<span class="hljs-string">&quot;app&quot;</span>&gt;</span><span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
<span class="hljs-tag">&lt;<span class="hljs-name">script</span> <span class="hljs-attr">src</span>=<span class="hljs-string">&quot;//js.cdn.com/id/app_9d89c964.js&quot;</span>&gt;</span><span class="undefined"></span><span class="hljs-tag">&lt;/<span class="hljs-name">script</span>&gt;</span>
<span class="hljs-tag">&lt;/<span class="hljs-name">body</span>&gt;</span>
<span class="hljs-tag">&lt;/<span class="hljs-name">html</span>&gt;</span>
</code></pre>
<blockquote>
<p>&#x4F7F;&#x7528;&#x4E86;&#x591A;&#x4E2A;&#x57DF;&#x540D;&#x540E;&#x53C8;&#x4F1A;&#x5E26;&#x6765;&#x4E00;&#x4E2A;&#x65B0;&#x95EE;&#x9898;&#xFF1A;&#x589E;&#x52A0;&#x57DF;&#x540D;&#x89E3;&#x6790;&#x65F6;&#x95F4;&#x3002;&#x662F;&#x5426;&#x91C7;&#x7528;&#x591A;&#x57DF;&#x540D;&#x5206;&#x6563;&#x8D44;&#x6E90;&#x9700;&#x8981;&#x6839;&#x636E;&#x81EA;&#x5DF1;&#x7684;&#x9700;&#x6C42;&#x53BB;&#x8861;&#x91CF;&#x5F97;&#x5931;&#x3002;
&#x5F53;&#x7136;&#x4F60;&#x53EF;&#x4EE5;&#x901A;&#x8FC7;&#x5728; HTML HEAD &#x6807;&#x7B7E;&#x4E2D; &#x52A0;&#x5165; <code>&lt;link rel=&quot;dns-prefetch&quot; href=&quot;//js.cdn.com&quot;&gt;</code> &#x53BB;&#x9884;&#x89E3;&#x6790;&#x57DF;&#x540D;&#xFF0C;&#x4EE5;&#x964D;&#x4F4E;&#x57DF;&#x540D;&#x89E3;&#x6790;&#x5E26;&#x6765;&#x7684;&#x5EF6;&#x8FDF;&#x3002;</p>
</blockquote>
<h2 id="&#x7528;-webpack-&#x5B9E;&#x73B0;-cdn-&#x7684;&#x63A5;&#x5165;">&#x7528; Webpack &#x5B9E;&#x73B0; CDN &#x7684;&#x63A5;&#x5165;</h2>
<p>&#x603B;&#x7ED3;&#x4E0A;&#x9762;&#x6240;&#x8BF4;&#x7684;&#xFF0C;&#x6784;&#x5EFA;&#x9700;&#x8981;&#x5B9E;&#x73B0;&#x4EE5;&#x4E0B;&#x51E0;&#x70B9;&#xFF1A;</p>
<ul>
<li>&#x9759;&#x6001;&#x8D44;&#x6E90;&#x7684;&#x5BFC;&#x5165; URL &#x9700;&#x8981;&#x53D8;&#x6210;&#x6307;&#x5411; CDN &#x670D;&#x52A1;&#x7684;&#x7EDD;&#x5BF9;&#x8DEF;&#x5F84;&#x7684; URL &#x800C;&#x4E0D;&#x662F;&#x76F8;&#x5BF9;&#x4E8E; HTML &#x6587;&#x4EF6;&#x7684; URL&#x3002;</li>
<li>&#x9759;&#x6001;&#x8D44;&#x6E90;&#x7684;&#x6587;&#x4EF6;&#x540D;&#x79F0;&#x9700;&#x8981;&#x5E26;&#x4E0A;&#x6709;&#x6587;&#x4EF6;&#x5185;&#x5BB9;&#x7B97;&#x51FA;&#x6765;&#x7684; Hash &#x503C;&#xFF0C;&#x4EE5;&#x9632;&#x6B62;&#x88AB;&#x7F13;&#x5B58;&#x3002;</li>
<li>&#x4E0D;&#x540C;&#x7C7B;&#x578B;&#x7684;&#x8D44;&#x6E90;&#x653E;&#x5230;&#x4E0D;&#x540C;&#x57DF;&#x540D;&#x7684; CDN &#x670D;&#x52A1;&#x4E0A;&#x53BB;&#xFF0C;&#x4EE5;&#x9632;&#x6B62;&#x8D44;&#x6E90;&#x7684;&#x5E76;&#x884C;&#x52A0;&#x8F7D;&#x88AB;&#x963B;&#x585E;&#x3002;</li>
</ul>
<p>&#x5148;&#x6765;&#x770B;&#x4E0B;&#x8981;&#x5B9E;&#x73B0;&#x4EE5;&#x4E0A;&#x8981;&#x6C42;&#x7684;&#x6700;&#x7EC8; Webpack &#x914D;&#x7F6E;&#xFF1A;</p>
<pre><code class="lang-js"><span class="hljs-keyword">const</span> path = <span class="hljs-built_in">require</span>(<span class="hljs-string">&apos;path&apos;</span>);
<span class="hljs-keyword">const</span> ExtractTextPlugin = <span class="hljs-built_in">require</span>(<span class="hljs-string">&apos;extract-text-webpack-plugin&apos;</span>);
<span class="hljs-keyword">const</span> {WebPlugin} = <span class="hljs-built_in">require</span>(<span class="hljs-string">&apos;web-webpack-plugin&apos;</span>);

<span class="hljs-built_in">module</span>.exports = {
  <span class="hljs-comment">// &#x7701;&#x7565; entry &#x914D;&#x7F6E;...</span>
  output: {
    <span class="hljs-comment">// &#x7ED9;&#x8F93;&#x51FA;&#x7684; JavaScript &#x6587;&#x4EF6;&#x540D;&#x79F0;&#x52A0;&#x4E0A; Hash &#x503C;</span>
    filename: <span class="hljs-string">&apos;[name]_[chunkhash:8].js&apos;</span>,
    path: path.resolve(__dirname, <span class="hljs-string">&apos;./dist&apos;</span>),
    <span class="hljs-comment">// &#x6307;&#x5B9A;&#x5B58;&#x653E; JavaScript &#x6587;&#x4EF6;&#x7684; CDN &#x76EE;&#x5F55; URL</span>
    publicPath: <span class="hljs-string">&apos;//js.cdn.com/id/&apos;</span>,
  },
  <span class="hljs-built_in">module</span>: {
    rules: [
      {
        <span class="hljs-comment">// &#x589E;&#x52A0;&#x5BF9; CSS &#x6587;&#x4EF6;&#x7684;&#x652F;&#x6301;</span>
        test: <span class="hljs-regexp">/\.css$/</span>,
        <span class="hljs-comment">// &#x63D0;&#x53D6;&#x51FA; Chunk &#x4E2D;&#x7684; CSS &#x4EE3;&#x7801;&#x5230;&#x5355;&#x72EC;&#x7684;&#x6587;&#x4EF6;&#x4E2D;</span>
        use: ExtractTextPlugin.extract({
          <span class="hljs-comment">// &#x538B;&#x7F29; CSS &#x4EE3;&#x7801;</span>
          use: [<span class="hljs-string">&apos;css-loader?minimize&apos;</span>],
          <span class="hljs-comment">// &#x6307;&#x5B9A;&#x5B58;&#x653E; CSS &#x4E2D;&#x5BFC;&#x5165;&#x7684;&#x8D44;&#x6E90;&#xFF08;&#x4F8B;&#x5982;&#x56FE;&#x7247;&#xFF09;&#x7684; CDN &#x76EE;&#x5F55; URL</span>
          publicPath: <span class="hljs-string">&apos;//img.cdn.com/id/&apos;</span>
        }),
      },
      {
        <span class="hljs-comment">// &#x589E;&#x52A0;&#x5BF9; PNG &#x6587;&#x4EF6;&#x7684;&#x652F;&#x6301;</span>
        test: <span class="hljs-regexp">/\.png$/</span>,
        <span class="hljs-comment">// &#x7ED9;&#x8F93;&#x51FA;&#x7684; PNG &#x6587;&#x4EF6;&#x540D;&#x79F0;&#x52A0;&#x4E0A; Hash &#x503C;</span>
        use: [<span class="hljs-string">&apos;file-loader?name=[name]_[hash:8].[ext]&apos;</span>],
      },
      <span class="hljs-comment">// &#x7701;&#x7565;&#x5176;&#x5B83; Loader &#x914D;&#x7F6E;...</span>
    ]
  },
  plugins: [
    <span class="hljs-comment">// &#x4F7F;&#x7528; WebPlugin &#x81EA;&#x52A8;&#x751F;&#x6210; HTML</span>
    <span class="hljs-keyword">new</span> WebPlugin({
      <span class="hljs-comment">// HTML &#x6A21;&#x7248;&#x6587;&#x4EF6;&#x6240;&#x5728;&#x7684;&#x6587;&#x4EF6;&#x8DEF;&#x5F84;</span>
      template: <span class="hljs-string">&apos;./template.html&apos;</span>,
      <span class="hljs-comment">// &#x8F93;&#x51FA;&#x7684; HTML &#x7684;&#x6587;&#x4EF6;&#x540D;&#x79F0;</span>
      filename: <span class="hljs-string">&apos;index.html&apos;</span>,
      <span class="hljs-comment">// &#x6307;&#x5B9A;&#x5B58;&#x653E; CSS &#x6587;&#x4EF6;&#x7684; CDN &#x76EE;&#x5F55; URL</span>
      stylePublicPath: <span class="hljs-string">&apos;//css.cdn.com/id/&apos;</span>,
    }),
    <span class="hljs-keyword">new</span> ExtractTextPlugin({
      <span class="hljs-comment">// &#x7ED9;&#x8F93;&#x51FA;&#x7684; CSS &#x6587;&#x4EF6;&#x540D;&#x79F0;&#x52A0;&#x4E0A; Hash &#x503C;</span>
      filename: <span class="hljs-string">`[name]_[contenthash:8].css`</span>,
    }),
    <span class="hljs-comment">// &#x7701;&#x7565;&#x4EE3;&#x7801;&#x538B;&#x7F29;&#x63D2;&#x4EF6;&#x914D;&#x7F6E;...</span>
  ],
};
</code></pre>
<p>&#x4EE5;&#x4E0A;&#x4EE3;&#x7801;&#x4E2D;&#x6700;&#x6838;&#x5FC3;&#x7684;&#x90E8;&#x5206;&#x662F;&#x901A;&#x8FC7; <code>publicPath</code> &#x53C2;&#x6570;&#x8BBE;&#x7F6E;&#x5B58;&#x653E;&#x9759;&#x6001;&#x8D44;&#x6E90;&#x7684; CDN &#x76EE;&#x5F55; URL&#xFF0C;
&#x4E3A;&#x4E86;&#x8BA9;&#x4E0D;&#x540C;&#x7C7B;&#x578B;&#x7684;&#x8D44;&#x6E90;&#x8F93;&#x51FA;&#x5230;&#x4E0D;&#x540C;&#x7684; CDN&#xFF0C;&#x9700;&#x8981;&#x5206;&#x522B;&#x5728;&#xFF1A;</p>
<ul>
<li><code>output.publicPath</code> &#x4E2D;&#x8BBE;&#x7F6E; JavaScript &#x7684;&#x5730;&#x5740;&#x3002;</li>
<li><code>css-loader.publicPath</code> &#x4E2D;&#x8BBE;&#x7F6E;&#x88AB; CSS &#x5BFC;&#x5165;&#x7684;&#x8D44;&#x6E90;&#x7684;&#x7684;&#x5730;&#x5740;&#x3002;</li>
<li><code>WebPlugin.stylePublicPath</code> &#x4E2D;&#x8BBE;&#x7F6E; CSS &#x6587;&#x4EF6;&#x7684;&#x5730;&#x5740;&#x3002;</li>
</ul>
<p>&#x8BBE;&#x7F6E;&#x597D; <code>publicPath</code> &#x540E;&#xFF0C;<code>WebPlugin</code> &#x5728;&#x751F;&#x6210; HTML &#x6587;&#x4EF6;&#x548C; <code>css-loader</code> &#x8F6C;&#x6362; CSS &#x4EE3;&#x7801;&#x65F6;&#xFF0C;&#x4F1A;&#x8003;&#x8651;&#x5230;&#x914D;&#x7F6E;&#x4E2D;&#x7684; <code>publicPath</code>&#xFF0C;&#x7528;&#x5BF9;&#x5E94;&#x7684;&#x7EBF;&#x4E0A;&#x5730;&#x5740;&#x66FF;&#x6362;&#x539F;&#x6765;&#x7684;&#x76F8;&#x5BF9;&#x5730;&#x5740;&#x3002;</p>
<blockquote>
<p>&#x672C;&#x5B9E;&#x4F8B;<a href="http://webpack.wuhaolin.cn/4-9CDN&#x52A0;&#x901F;.zip" target="_blank">&#x63D0;&#x4F9B;&#x9879;&#x76EE;&#x5B8C;&#x6574;&#x4EE3;&#x7801;</a></p>
</blockquote>

                                
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