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<!DOCTYPE HTML>
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<title>ASP.NET Core - TypeScript 使用指南手册</title>
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<ol class="chapter"><li class="chapter-item expanded affix "><a href="../../PREFACE.html">前言</a></li><li class="chapter-item expanded affix "><li class="part-title">快速上手</li><li class="chapter-item expanded "><a href="../../zh/tutorials/index.html"><strong aria-hidden="true">1.</strong> 快速上手</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../zh/tutorials/typescript-in-5-minutes.html"><strong aria-hidden="true">1.1.</strong> 5 分钟了解 TypeScript</a></li><li class="chapter-item expanded "><a href="../../zh/tutorials/asp.net-core.html" class="active"><strong aria-hidden="true">1.2.</strong> ASP.NET Core</a></li><li class="chapter-item expanded "><a href="../../zh/tutorials/asp.net-4.html"><strong aria-hidden="true">1.3.</strong> ASP.NET 4</a></li><li class="chapter-item expanded "><a href="../../zh/tutorials/gulp.html"><strong aria-hidden="true">1.4.</strong> Gulp</a></li><li class="chapter-item expanded "><a href="../../zh/tutorials/knockout.html"><strong aria-hidden="true">1.5.</strong> Knockout.js</a></li><li class="chapter-item expanded "><a href="../../zh/tutorials/react-and-webpack.html"><strong aria-hidden="true">1.6.</strong> React 与 webpack</a></li><li class="chapter-item expanded "><a href="../../zh/tutorials/react.html"><strong aria-hidden="true">1.7.</strong> React</a></li><li class="chapter-item expanded "><a href="../../zh/tutorials/angular-2.html"><strong aria-hidden="true">1.8.</strong> Angular 2</a></li><li class="chapter-item expanded "><a href="../../zh/tutorials/migrating-from-javascript.html"><strong aria-hidden="true">1.9.</strong> 从 JavaScript 迁移到 TypeScript</a></li></ol></li><li class="chapter-item expanded "><li class="part-title">手册</li><li class="chapter-item expanded "><a href="../../zh/handbook/index.html"><strong aria-hidden="true">2.</strong> 手册</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../zh/handbook/basic-types.html"><strong aria-hidden="true">2.1.</strong> 基础类型</a></li><li class="chapter-item expanded "><a href="../../zh/handbook/interfaces.html"><strong aria-hidden="true">2.2.</strong> 接口</a></li><li class="chapter-item expanded "><a href="../../zh/handbook/functions.html"><strong aria-hidden="true">2.3.</strong> 函数</a></li><li class="chapter-item expanded "><a href="../../zh/handbook/literal-types.html"><strong aria-hidden="true">2.4.</strong> 字面量类型</a></li><li class="chapter-item expanded "><a href="../../zh/handbook/unions-and-intersections.html"><strong aria-hidden="true">2.5.</strong> 联合类型和交叉类型</a></li><li class="chapter-item expanded "><a href="../../zh/handbook/classes.html"><strong aria-hidden="true">2.6.</strong> 类</a></li><li class="chapter-item expanded "><a href="../../zh/handbook/enums.html"><strong aria-hidden="true">2.7.</strong> 枚举</a></li><li class="chapter-item expanded "><a href="../../zh/handbook/generics.html"><strong aria-hidden="true">2.8.</strong> 泛型</a></li></ol></li><li class="chapter-item expanded "><li class="part-title">手册（进阶）</li><li class="chapter-item expanded "><a href="../../zh/reference/index.html"><strong aria-hidden="true">3.</strong> 手册（进阶）</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../zh/reference/advanced-types.html"><strong aria-hidden="true">3.1.</strong> 高级类型</a></li><li class="chapter-item expanded "><a href="../../zh/reference/utility-types.html"><strong aria-hidden="true">3.2.</strong> 实用工具类型</a></li><li class="chapter-item expanded "><a href="../../zh/reference/decorators.html"><strong aria-hidden="true">3.3.</strong> Decorators</a></li><li class="chapter-item expanded "><a href="../../zh/reference/declaration-merging.html"><strong aria-hidden="true">3.4.</strong> 声明合并</a></li><li class="chapter-item expanded "><a href="../../zh/reference/iterators-and-generators.html"><strong aria-hidden="true">3.5.</strong> Iterators 和 Generators</a></li><li class="chapter-item expanded "><a href="../../zh/reference/jsx.html"><strong aria-hidden="true">3.6.</strong> JSX</a></li><li class="chapter-item expanded "><a href="../../zh/reference/mixins.html"><strong aria-hidden="true">3.7.</strong> 混入</a></li><li class="chapter-item expanded "><a href="../../zh/reference/modules.html"><strong aria-hidden="true">3.8.</strong> 模块</a></li><li class="chapter-item expanded "><a href="../../zh/reference/module-resolution.html"><strong aria-hidden="true">3.9.</strong> 模块解析</a></li><li class="chapter-item expanded "><a href="../../zh/reference/namespaces.html"><strong aria-hidden="true">3.10.</strong> 命名空间</a></li><li class="chapter-item expanded "><a href="../../zh/reference/namespaces-and-modules.html"><strong aria-hidden="true">3.11.</strong> 命名空间和模块</a></li><li class="chapter-item expanded "><a href="../../zh/reference/symbols.html"><strong aria-hidden="true">3.12.</strong> Symbols</a></li><li class="chapter-item expanded "><a href="../../zh/reference/triple-slash-directives.html"><strong aria-hidden="true">3.13.</strong> 三斜线指令</a></li><li class="chapter-item expanded "><a href="../../zh/reference/type-compatibility.html"><strong aria-hidden="true">3.14.</strong> 类型兼容性</a></li><li class="chapter-item expanded "><a href="../../zh/reference/type-inference.html"><strong aria-hidden="true">3.15.</strong> 类型推论</a></li><li class="chapter-item expanded "><a href="../../zh/reference/variable-declarations.html"><strong aria-hidden="true">3.16.</strong> 变量声明</a></li></ol></li><li class="chapter-item expanded "><li class="part-title">手册（v2）</li><li class="chapter-item expanded "><a href="../../zh/handbook-v2/index.html"><strong aria-hidden="true">4.</strong> 手册（v2）</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../zh/handbook-v2/type-manipulation/template-literal-types.html"><strong aria-hidden="true">4.1.</strong> 模版字面量类型</a></li></ol></li><li class="chapter-item expanded "><li class="part-title">TypeScript 声明文件（.d.ts）</li><li class="chapter-item expanded "><a href="../../zh/declaration-files/index.html"><strong aria-hidden="true">5.</strong> 如何书写声明文件</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../zh/declaration-files/introduction.html"><strong aria-hidden="true">5.1.</strong> 介绍</a></li><li class="chapter-item expanded "><a href="../../zh/declaration-files/by-example.html"><strong aria-hidden="true">5.2.</strong> 举例</a></li><li class="chapter-item expanded "><a href="../../zh/declaration-files/library-structures.html"><strong aria-hidden="true">5.3.</strong> 库结构</a></li><li class="chapter-item expanded "><a href="../../zh/declaration-files/templates.html"><strong aria-hidden="true">5.4.</strong> 模板</a></li><li class="chapter-item expanded "><a href="../../zh/declaration-files/do-s-and-don-ts.html"><strong aria-hidden="true">5.5.</strong> 最佳实践</a></li><li class="chapter-item expanded "><a href="../../zh/declaration-files/deep-dive.html"><strong aria-hidden="true">5.6.</strong> 深入</a></li><li class="chapter-item expanded "><a href="../../zh/declaration-files/publishing.html"><strong aria-hidden="true">5.7.</strong> 发布</a></li><li class="chapter-item expanded "><a href="../../zh/declaration-files/consumption.html"><strong aria-hidden="true">5.8.</strong> 使用</a></li></ol></li><li class="chapter-item expanded "><li class="part-title">TypeScript for JavaScript</li><li class="chapter-item expanded "><a href="../../zh/javascript/type-checking-javascript-files.html"><strong aria-hidden="true">6.</strong> JavaScript 文件里的类型检查</a></li><li class="chapter-item expanded affix "><li class="part-title">工程配置</li><li class="chapter-item expanded "><a href="../../zh/project-config/index.html"><strong aria-hidden="true">7.</strong> 工程配置</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../zh/project-config/tsconfig.json.html"><strong aria-hidden="true">7.1.</strong> tsconfig.json</a></li><li class="chapter-item expanded "><a href="../../zh/project-config/project-references.html"><strong aria-hidden="true">7.2.</strong> 工程引用</a></li><li class="chapter-item expanded "><a href="../../zh/project-config/typings-for-npm-packages.html"><strong aria-hidden="true">7.3.</strong> NPM 包的类型</a></li><li class="chapter-item expanded "><a href="../../zh/project-config/compiler-options.html"><strong aria-hidden="true">7.4.</strong> 编译选项</a></li><li class="chapter-item expanded "><a href="../../zh/project-config/configuring-watch.html"><strong aria-hidden="true">7.5.</strong> 配置 Watch</a></li><li class="chapter-item expanded "><a href="../../zh/project-config/compiler-options-in-msbuild.html"><strong aria-hidden="true">7.6.</strong> 在 MSBuild 里使用编译选项</a></li><li class="chapter-item expanded "><a href="../../zh/project-config/integrating-with-build-tools.html"><strong aria-hidden="true">7.7.</strong> 与其它构建工具整合</a></li><li class="chapter-item expanded "><a href="../../zh/project-config/nightly-builds.html"><strong aria-hidden="true">7.8.</strong> 使用 TypeScript 的每日构建版本</a></li></ol></li><li class="chapter-item expanded "><li class="part-title">版本发布说明（Release Notes）</li><li class="chapter-item expanded "><a href="../../zh/release-notes/index.html"><strong aria-hidden="true">8.</strong> 新增功能</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-5.4.html"><strong aria-hidden="true">8.1.</strong> TypeScript 5.4</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-5.3.html"><strong aria-hidden="true">8.2.</strong> TypeScript 5.3</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-5.2.html"><strong aria-hidden="true">8.3.</strong> TypeScript 5.2</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-5.1.html"><strong aria-hidden="true">8.4.</strong> TypeScript 5.1</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-5.0.html"><strong aria-hidden="true">8.5.</strong> TypeScript 5.0</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-4.9.html"><strong aria-hidden="true">8.6.</strong> TypeScript 4.9</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-4.8.html"><strong aria-hidden="true">8.7.</strong> TypeScript 4.8</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-4.7.html"><strong aria-hidden="true">8.8.</strong> TypeScript 4.7</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-4.6.html"><strong aria-hidden="true">8.9.</strong> TypeScript 4.6</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-4.5.html"><strong aria-hidden="true">8.10.</strong> TypeScript 4.5</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-4.4.html"><strong aria-hidden="true">8.11.</strong> TypeScript 4.4</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-4.3.html"><strong aria-hidden="true">8.12.</strong> TypeScript 4.3</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-4.2.html"><strong aria-hidden="true">8.13.</strong> TypeScript 4.2</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-4.1.html"><strong aria-hidden="true">8.14.</strong> TypeScript 4.1</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-4.0.html"><strong aria-hidden="true">8.15.</strong> TypeScript 4.0</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-3.9.html"><strong aria-hidden="true">8.16.</strong> TypeScript 3.9</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-3.8.html"><strong aria-hidden="true">8.17.</strong> TypeScript 3.8</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-3.7.html"><strong aria-hidden="true">8.18.</strong> TypeScript 3.7</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-3.6.html"><strong aria-hidden="true">8.19.</strong> TypeScript 3.6</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-3.5.html"><strong aria-hidden="true">8.20.</strong> TypeScript 3.5</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-3.4.html"><strong aria-hidden="true">8.21.</strong> TypeScript 3.4</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-3.3.html"><strong aria-hidden="true">8.22.</strong> TypeScript 3.3</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-3.2.html"><strong aria-hidden="true">8.23.</strong> TypeScript 3.2</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-3.1.html"><strong aria-hidden="true">8.24.</strong> TypeScript 3.1</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-3.0.html"><strong aria-hidden="true">8.25.</strong> TypeScript 3.0</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-2.9.html"><strong aria-hidden="true">8.26.</strong> TypeScript 2.9</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-2.8.html"><strong aria-hidden="true">8.27.</strong> TypeScript 2.8</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-2.7.html"><strong aria-hidden="true">8.28.</strong> TypeScript 2.7</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-2.6.html"><strong aria-hidden="true">8.29.</strong> TypeScript 2.6</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-2.5.html"><strong aria-hidden="true">8.30.</strong> TypeScript 2.5</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-2.4.html"><strong aria-hidden="true">8.31.</strong> TypeScript 2.4</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-2.3.html"><strong aria-hidden="true">8.32.</strong> TypeScript 2.3</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-2.2.html"><strong aria-hidden="true">8.33.</strong> TypeScript 2.2</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-2.1.html"><strong aria-hidden="true">8.34.</strong> TypeScript 2.1</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-2.0.html"><strong aria-hidden="true">8.35.</strong> TypeScript 2.0</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-1.8.html"><strong aria-hidden="true">8.36.</strong> TypeScript 1.8</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-1.7.html"><strong aria-hidden="true">8.37.</strong> TypeScript 1.7</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-1.6.html"><strong aria-hidden="true">8.38.</strong> TypeScript 1.6</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-1.5.html"><strong aria-hidden="true">8.39.</strong> TypeScript 1.5</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-1.4.html"><strong aria-hidden="true">8.40.</strong> TypeScript 1.4</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-1.3.html"><strong aria-hidden="true">8.41.</strong> TypeScript 1.3</a></li><li class="chapter-item expanded "><a href="../../zh/release-notes/typescript-1.1.html"><strong aria-hidden="true">8.42.</strong> TypeScript 1.1</a></li></ol></li><li class="chapter-item expanded "><li class="part-title">破坏性改动（Breaking Changes）</li><li class="chapter-item expanded "><a href="../../zh/breaking-changes/index.html"><strong aria-hidden="true">9.</strong> Breaking Changes</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../../zh/breaking-changes/typescript-3.6.html"><strong aria-hidden="true">9.1.</strong> TypeScript 3.6</a></li><li class="chapter-item expanded "><a href="../../zh/breaking-changes/typescript-3.5.html"><strong aria-hidden="true">9.2.</strong> TypeScript 3.5</a></li><li class="chapter-item expanded "><a href="../../zh/breaking-changes/typescript-3.4.html"><strong aria-hidden="true">9.3.</strong> TypeScript 3.4</a></li><li class="chapter-item expanded "><a href="../../zh/breaking-changes/typescript-3.2.html"><strong aria-hidden="true">9.4.</strong> TypeScript 3.2</a></li><li class="chapter-item expanded "><a href="../../zh/breaking-changes/typescript-3.1.html"><strong aria-hidden="true">9.5.</strong> TypeScript 3.1</a></li><li class="chapter-item expanded "><a href="../../zh/breaking-changes/typescript-3.0.html"><strong aria-hidden="true">9.6.</strong> TypeScript 3.0</a></li><li class="chapter-item expanded "><a href="../../zh/breaking-changes/typescript-2.9.html"><strong aria-hidden="true">9.7.</strong> TypeScript 2.9</a></li><li class="chapter-item expanded "><a href="../../zh/breaking-changes/typescript-2.8.html"><strong aria-hidden="true">9.8.</strong> TypeScript 2.8</a></li><li class="chapter-item expanded "><a href="../../zh/breaking-changes/typescript-2.7.html"><strong aria-hidden="true">9.9.</strong> TypeScript 2.7</a></li><li class="chapter-item expanded "><a href="../../zh/breaking-changes/typescript-2.6.html"><strong aria-hidden="true">9.10.</strong> TypeScript 2.6</a></li><li class="chapter-item expanded "><a href="../../zh/breaking-changes/typescript-2.4.html"><strong aria-hidden="true">9.11.</strong> TypeScript 2.4</a></li><li class="chapter-item expanded "><a href="../../zh/breaking-changes/typescript-2.3.html"><strong aria-hidden="true">9.12.</strong> TypeScript 2.3</a></li><li class="chapter-item expanded "><a href="../../zh/breaking-changes/typescript-2.2.html"><strong aria-hidden="true">9.13.</strong> TypeScript 2.2</a></li><li class="chapter-item expanded "><a href="../../zh/breaking-changes/typescript-2.1.html"><strong aria-hidden="true">9.14.</strong> TypeScript 2.1</a></li><li class="chapter-item expanded "><a href="../../zh/breaking-changes/typescript-2.0.html"><strong aria-hidden="true">9.15.</strong> TypeScript 2.0</a></li><li class="chapter-item expanded "><a href="../../zh/breaking-changes/typescript-1.8.html"><strong aria-hidden="true">9.16.</strong> TypeScript 1.8</a></li><li class="chapter-item expanded "><a href="../../zh/breaking-changes/typescript-1.7.html"><strong aria-hidden="true">9.17.</strong> TypeScript 1.7</a></li><li class="chapter-item expanded "><a href="../../zh/breaking-changes/typescript-1.6.html"><strong aria-hidden="true">9.18.</strong> TypeScript 1.6</a></li><li class="chapter-item expanded "><a href="../../zh/breaking-changes/typescript-1.5.html"><strong aria-hidden="true">9.19.</strong> TypeScript 1.5</a></li><li class="chapter-item expanded "><a href="../../zh/breaking-changes/typescript-1.4.html"><strong aria-hidden="true">9.20.</strong> TypeScript 1.4</a></li></ol></li></ol>
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<h1 id="aspnet-core"><a class="header" href="#aspnet-core">ASP.NET Core</a></h1>
<h2 id="aspnet-core-1"><a class="header" href="#aspnet-core-1">ASP.NET Core</a></h2>
<h3 id="安装-aspnet-core-和-typescript"><a class="header" href="#安装-aspnet-core-和-typescript">安装 ASP.NET Core 和 TypeScript</a></h3>
<p>首先，若有需要请<a href="https://get.asp.net">安装 ASP.NET Core</a>。此篇指南需要使用Visual Studio 2015或2017。</p>
<p>其次，如果你的Visual Studio不带有最新版本的TypeScript，你可以从<a href="http://www.microsoft.com/en-us/download/details.aspx?id=48593">这里</a>安装。</p>
<h3 id="新建工程"><a class="header" href="#新建工程">新建工程</a></h3>
<ol>
<li>
<p>选择 <strong>File</strong></p>
</li>
<li>
<p>选择 <strong>New Project</strong> （Ctrl + Shift + N）</p>
</li>
<li>
<p>选择 <strong>Visual C#</strong></p>
</li>
<li>
<p>若使用VS2015，选择 <strong>ASP.NET Web Application</strong> > <strong>ASP.NET 5 Empty</strong>，并且取消勾选“Host in the cloud”，因为我们要在本地运行。</p>
<p><img src="../assets/images/tutorials/aspnet/new-asp-project-empty.png" alt="使用空白模版" /></p>
</li>
<li>
<p>若使用VS2017，选择 <strong>ASP.NET Core Web Application (.NET Core)</strong> > <strong>ASP.NET Core 1.1 Empty</strong>。</p>
<p><img src="../assets/images/tutorials/aspnet/new-asp-project-empty-17.PNG" alt="使用空白模版VS2017" /></p>
</li>
</ol>
<p>运行此应用以确保它能正常工作。</p>
<h3 id="设置服务项"><a class="header" href="#设置服务项">设置服务项</a></h3>
<h4 id="vs2015"><a class="header" href="#vs2015">VS2015</a></h4>
<p>在 <code>project.json</code> 文件的 <code>"dependencies"</code> 字段里添加:</p>
<pre><code class="language-javascript">"Microsoft.AspNet.StaticFiles": "1.0.0-rc1-final"
</code></pre>
<p>最终的 dependencies 部分应该类似于下面这样：</p>
<pre><code class="language-javascript">"dependencies": {
"Microsoft.AspNet.IISPlatformHandler": "1.0.0-rc1-final",
"Microsoft.AspNet.Server.Kestrel": "1.0.0-rc1-final",
"Microsoft.AspNet.StaticFiles": "1.0.0-rc1-final"
},
</code></pre>
<p>用以下内容替换 <code>Startup.cs</code> 文件里的 <code>Configure</code> 函数：</p>
<pre><code class="language-csharp">public void Configure(IApplicationBuilder app)
{
app.UseIISPlatformHandler();
app.UseDefaultFiles();
app.UseStaticFiles();
}
</code></pre>
<h4 id="vs2017"><a class="header" href="#vs2017">VS2017</a></h4>
<p>打开 <strong>Dependencies</strong> > <strong>Manage NuGet Packages</strong> > <strong>Browse</strong>。搜索并安装<code>Microsoft.AspNetCore.StaticFiles</code> 1.1.2：</p>
<p><img src="../assets/images/tutorials/aspnet/install-nuget-packages.png" alt="安装Microsoft.AspNetCore.StaticFiles" /></p>
<p>如下替换掉<code>Startup.cs</code>里<code>Configure</code>的内容：</p>
<pre><code class="language-csharp">public void Configure(IApplicationBuilder app)
{
app.UseDefaultFiles();
app.UseStaticFiles();
}
</code></pre>
<p>你可能需要重启VS，这样<code>UseDefaultFiles</code>和<code>UseStaticFiles</code>下面的波浪线才会消失。</p>
<h2 id="添加-typescript"><a class="header" href="#添加-typescript">添加 TypeScript</a></h2>
<p>下一步我们为 TypeScript 添加一个文件夹。</p>
<p><img src="../assets/images/tutorials/aspnet/new-folder.png" alt="Create new folder" /></p>
<p>将文件夹命名为 <code>scripts</code>。</p>
<p><img src="../assets/images/tutorials/aspnet/scripts-folder.png" alt="scripts folder" /></p>
<h3 id="添加-typescript-代码"><a class="header" href="#添加-typescript-代码">添加 TypeScript 代码</a></h3>
<p>在<code>scripts</code>上右击并选择<strong>New Item</strong>。 接着选择<strong>TypeScript File</strong>（也可能 .NET Core 部分），并将此文件命名为<code>app.ts</code>。</p>
<p><img src="../assets/images/tutorials/aspnet/new-item.png" alt="New item" /></p>
<h3 id="添加示例代码"><a class="header" href="#添加示例代码">添加示例代码</a></h3>
<p>将以下代码写入app.ts文件。</p>
<pre><code class="language-typescript">function sayHello() {
const compiler = (document.getElementById("compiler") as HTMLInputElement).value;
const framework = (document.getElementById("framework") as HTMLInputElement).value;
return `Hello from ${compiler} and ${framework}!`;
}
</code></pre>
<h3 id="构建设置"><a class="header" href="#构建设置">构建设置</a></h3>
<h4 id="配置-typescript-编译器"><a class="header" href="#配置-typescript-编译器">配置 TypeScript 编译器</a></h4>
<p>我们先来告诉TypeScript怎样构建。 右击scripts文件夹并选择<strong>New Item</strong>。 接着选择<strong>TypeScript Configuration File</strong>，保持文件的默认名字为<code>tsconfig.json</code>。</p>
<p><img src="../assets/images/tutorials/aspnet/new-tsconfig.png" alt="Create tsconfig.json" /></p>
<p>将默认的<code>tsconfig.json</code>内容改为如下所示：</p>
<pre><code class="language-javascript">{
"compilerOptions": {
"noImplicitAny": true,
"noEmitOnError": true,
"sourceMap": true,
"target": "es5"
},
"files": [
"./app.ts"
],
"compileOnSave": true
}
</code></pre>
<p>看起来和默认的设置差不多，但注意以下不同之处：</p>
<ol>
<li>设置<code>"noImplicitAny": true</code>。</li>
<li>显式列出了<code>"files"</code>而不是依据<code>"excludes"</code>。</li>
<li>设置<code>"compileOnSave": true</code>。</li>
</ol>
<p>当你写新代码时，设置<code>"noImplicitAny"</code>选项是个不错的选择 — 这可以确保你不会错写任何新的类型。 设置<code>"compileOnSave"</code>选项可以确保你在运行web程序前自动编译保存变更后的代码。</p>
<h4 id="配置-npm"><a class="header" href="#配置-npm">配置 NPM</a></h4>
<p>现在，我们来配置NPM以使用我们能够下载JavaScript包。 在工程上右击并选择<strong>New Item</strong>。 接着选择<strong>NPM Configuration File</strong>，保持文件的默认名字为<code>package.json</code>。 在<code>"devDependencies"</code>部分添加"gulp"和"del"：</p>
<pre><code class="language-javascript">"devDependencies": {
"gulp": "3.9.0",
"del": "2.2.0"
}
</code></pre>
<p>保存这个文件后，Visual Studio将开始安装gulp和del。 若没有自动开始，请右击package.json文件选择<strong>Restore Packages</strong>。</p>
<h4 id="设置-gulp"><a class="header" href="#设置-gulp">设置 gulp</a></h4>
<p>最后，添加一个新JavaScript文件<code>gulpfile.js</code>。 键入以下内容：</p>
<pre><code class="language-javascript">/// <binding AfterBuild='default' Clean='clean' />
/*
This file is the main entry point for defining Gulp tasks and using Gulp plugins.
Click here to learn more. http://go.microsoft.com/fwlink/?LinkId=518007
*/
var gulp = require('gulp');
var del = require('del');
var paths = {
scripts: ['scripts/**/*.js', 'scripts/**/*.ts', 'scripts/**/*.map'],
};
gulp.task('clean', function () {
return del(['wwwroot/scripts/**/*']);
});
gulp.task('default', function () {
gulp.src(paths.scripts).pipe(gulp.dest('wwwroot/scripts'))
});
</code></pre>
<p>第一行是告诉Visual Studio构建完成后，立即运行'default'任务。 当你应答 Visual Studio 清除构建内容后，它也将运行'clean'任务。</p>
<p>现在，右击<code>gulpfile.js</code>并选择<strong>Task Runner Explorer</strong>。 若'default'和'clean'任务没有显示输出内容的话，请刷新explorer：</p>
<p><img src="../assets/images/tutorials/aspnet/task-runner-explorer.png" alt="Refresh Task Runner Explorer" /></p>
<h3 id="编写html页"><a class="header" href="#编写html页">编写HTML页</a></h3>
<p>在<code>wwwroot</code>中添加一个新建项 <code>index.html</code>。 在<code>index.html</code>中写入以下代码：</p>
<pre><code class="language-markup"><!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<script src="scripts/app.js"></script>
<title></title>
</head>
<body>
<div id="message"></div>
<div>
Compiler: <input id="compiler" value="TypeScript" onkeyup="document.getElementById('message').innerText = sayHello()" /><br />
Framework: <input id="framework" value="ASP.NET" onkeyup="document.getElementById('message').innerText = sayHello()" />
</div>
</body>
</html>
</code></pre>
<h3 id="测试"><a class="header" href="#测试">测试</a></h3>
<ol>
<li>运行项目。</li>
<li>在输入框中键入时，您应该看到一个消息：</li>
</ol>
<p><img src="../assets/images/tutorials/aspnet/running-demo.png" alt="Picture of running demo" /></p>
<h3 id="调试"><a class="header" href="#调试">调试</a></h3>
<ol>
<li>在 Edge 浏览器中，按 F12 键并选择 <strong>Debugger</strong> 标签页。</li>
<li>展开 localhost 列表，选择 scripts/app.ts</li>
<li>在 <code>return</code> 那一行上打一个断点。</li>
<li>在输入框中键入一些内容，确认TypeScript代码命中断点，观察它是否能正确地工作。</li>
</ol>
<p><img src="../assets/images/tutorials/aspnet/paused-demo.png" alt="Demo paused on breakpoint" /></p>
<p>这就是你需要知道的在ASP.NET中使用TypeScript的基本知识了。 接下来，我们引入Angular，写一个简单的Angular程序示例。</p>
<h2 id="添加-angular-2"><a class="header" href="#添加-angular-2">添加 Angular 2</a></h2>
<h3 id="使用-npm-下载依赖的包"><a class="header" href="#使用-npm-下载依赖的包">使用 NPM 下载依赖的包</a></h3>
<p>添加Angular 2和SystemJS到<code>package.json</code>的<code>dependencies</code>里。</p>
<p>对于VS2015，新的<code>dependencies</code>列表如下：</p>
<pre><code class="language-javascript">"dependencies": {
"angular2": "2.0.0-beta.11",
"systemjs": "0.19.24",
"gulp": "3.9.0",
"del": "2.2.0"
},
</code></pre>
<p>若使用VS2017，因为NPM3反对同行的依赖（peer dependencies），我们需要把Angular 2同行的依赖也直接列为依赖项：</p>
<pre><code class="language-javascript">"dependencies": {
"angular2": "2.0.0-beta.11",
"reflect-metadata": "0.1.2",
"rxjs": "5.0.0-beta.2",
"zone.js": "^0.6.4",
"systemjs": "0.19.24",
"gulp": "3.9.0",
"del": "2.2.0"
},
</code></pre>
<h3 id="更新-tsconfigjson"><a class="header" href="#更新-tsconfigjson">更新 tsconfig.json</a></h3>
<p>现在安装好了Angular 2及其依赖项，我们需要启用TypeScript中实验性的装饰器支持。 我们还需要添加ES2015的声明，因为Angular使用core-js来支持像<code>Promise</code>的功能。 在未来，装饰器会成为默认设置，那时也就不再需要这些设置了。</p>
<p>添加<code>"experimentalDecorators": true, "emitDecoratorMetadata": true</code>到<code>"compilerOptions"</code>部分。 然后，再添加<code>"lib": ["es2015", "es5", "dom"]</code>到<code>"compilerOptions"</code>，以引入ES2015的声明。 最后，我们需要添加<code>"./model.ts"</code>到<code>"files"</code>里，我们接下来会创建它。 现在<code>tsconfig.json</code>看起来如下：</p>
<pre><code class="language-javascript">{
"compilerOptions": {
"noImplicitAny": true,
"noEmitOnError": true,
"sourceMap": true,
"experimentalDecorators": true,
"emitDecoratorMetadata": true,
"target": "es5",
"lib": [
"es2015", "es5", "dom"
]
},
"files": [
"./app.ts",
"./model.ts",
"./main.ts",
],
"compileOnSave": true
}
</code></pre>
<h3 id="将-angular-添加到-gulp-构建中"><a class="header" href="#将-angular-添加到-gulp-构建中">将 Angular 添加到 gulp 构建中</a></h3>
<p>最后，我们需要确保 Angular 文件作为 build 的一部分复制进来。 我们需要添加：</p>
<ol>
<li>库文件目录。</li>
<li>添加一个 <code>lib</code> 任务来输送文件到 <code>wwwroot</code>。</li>
<li>在 <code>default</code> 任务上添加 <code>lib</code> 任务依赖。</li>
</ol>
<p>更新后的 <code>gulpfile.js</code> 像如下所示：</p>
<pre><code class="language-markup">/// <binding AfterBuild='default' Clean='clean' />
/*
This file is the main entry point for defining Gulp tasks and using Gulp plugins.
Click here to learn more. http://go.microsoft.com/fwlink/?LinkId=518007
*/
var gulp = require('gulp');
var del = require('del');
var paths = {
scripts: ['scripts/**/*.js', 'scripts/**/*.ts', 'scripts/**/*.map'],
libs: ['node_modules/angular2/bundles/angular2.js',
'node_modules/angular2/bundles/angular2-polyfills.js',
'node_modules/systemjs/dist/system.src.js',
'node_modules/rxjs/bundles/Rx.js']
};
gulp.task('lib', function () {
gulp.src(paths.libs).pipe(gulp.dest('wwwroot/scripts/lib'));
});
gulp.task('clean', function () {
return del(['wwwroot/scripts/**/*']);
});
gulp.task('default', ['lib'], function () {
gulp.src(paths.scripts).pipe(gulp.dest('wwwroot/scripts'));
});
</code></pre>
<p>此外，保存了此gulpfile后，要确保 Task Runner Explorer 能看到 <code>lib</code> 任务。</p>
<h3 id="用-typescript-写一个简单的-angular-应用"><a class="header" href="#用-typescript-写一个简单的-angular-应用">用 TypeScript 写一个简单的 Angular 应用</a></h3>
<p>首先，将 <code>app.ts</code> 改成：</p>
<pre><code class="language-typescript">import {Component} from "angular2/core"
import {MyModel} from "./model"
@Component({
selector: `my-app`,
template: `<div>Hello from {{getCompiler()}}</div>`
})
export class MyApp {
model = new MyModel();
getCompiler() {
return this.model.compiler;
}
}
</code></pre>
<p>接着在<code>scripts</code>中添加TypeScript文件<code>model.ts</code>:</p>
<pre><code class="language-typescript">export class MyModel {
compiler = "TypeScript";
}
</code></pre>
<p>再在<code>scripts</code>中添加<code>main.ts</code>：</p>
<pre><code class="language-typescript">import {bootstrap} from "angular2/platform/browser";
import {MyApp} from "./app";
bootstrap(MyApp);
</code></pre>
<p>最后，将<code>index.html</code>改成：</p>
<pre><code class="language-markup"><!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<script src="scripts/lib/angular2-polyfills.js"></script>
<script src="scripts/lib/system.src.js"></script>
<script src="scripts/lib/rx.js"></script>
<script src="scripts/lib/angular2.js"></script>
<script>
System.config({
packages: {
'scripts': {
format: 'cjs',
defaultExtension: 'js'
}
}
});
System.import('scripts/main').then(null, console.error.bind(console));
</script>
<title></title>
</head>
<body>
<my-app>Loading...</my-app>
</body>
</html>
</code></pre>
<p>这里加载了此应用。 运行 ASP.NET 应用，你应该能看到一个div显示"Loading..."紧接着更新成显示"Hello from TypeScript"。</p>
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