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<!DOCTYPE html><html><head><meta charset="utf-8"><title>什么是 Angular？ - Angular 官方文档</title><base href="/"><meta name="viewport" content="width=device-width,initial-scale=1"><link rel="icon" type="image/x-icon" href="favicon.ico"><link rel="icon" type="image/x-icon" href="assets/images/favicons/favicon.ico"><link rel="icon" type="image/png" href="assets/images/favicons/favicon-32x32.png" sizes="32x32"><link rel="icon" type="image/png" href="assets/images/favicons/favicon-194x194.png" sizes="194x194"><link rel="icon" type="image/png" href="assets/images/favicons/favicon-96x96.png" sizes="96x96"><link rel="icon" type="image/png" href="assets/images/favicons/favicon-16x16.png" sizes="16x16"><link rel="apple-touch-icon" sizes="144x144" href="assets/images/favicons/favicon-144x144.png"><link rel="apple-touch-icon-precomposed" sizes="144x144" href="assets/images/favicons/favicon-144x144.png"><link href="assets/fonts/Material_Icons.css" rel="stylesheet"><link 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class="form-select-button"><strong></strong>stable (v6.1.0)</button></div></aio-select></div></mat-sidenav><div tabindex="-1" class="cdk-visually-hidden cdk-focus-trap-anchor"></div><mat-sidenav-content cdkscrollable="" class="mat-drawer-content mat-sidenav-content ng-star-inserted" style="margin-left:264px;margin-right:0"><div class="content"><h1 translation-origin="off" class="no-toc" id="what-is-angular">What is Angular?<a title="Link to this heading" class="header-link" aria-hidden="true" href="/docs#what-is-angular"><i class="material-icons">link</i></a></h1><h1 translation-result="" class="no-toc" id="what-is-angular">什么是 Angular？<a title="Link to this heading" class="header-link" aria-hidden="true" href="/docs#what-is-angular"><i class="material-icons">link</i></a></h1><p translation-origin="off">Angular is a platform that makes it easy to build applications with the web. Angular combines declarative templates, dependency injection, end to end tooling, and integrated best practices to solve development challenges. Angular empowers developers to build applications that live on the web, mobile, or the desktop</p><p translation-result="">Angular 是一个开发平台。它能帮你更轻松的构建 Web 应用。Angular 集声明式模板、依赖注入、端到端工具和一些最佳实践于一身，为你解决开发方面的各种挑战。Angular 为开发者提升构建 Web、手机或桌面应用的能力。</p><div class="card-container"><a href="/generated/live-examples/toh-pt1/stackblitz.html" target="_blank" class="docs-card" title="Experience Angular in a live coding environment"><section translation-origin="off">Get a Glimpse of Angular</section><section translation-result="">Angular 走马观花</section><p translation-origin="off">A quick look at an Angular "hello world" application.</p><p translation-result="">快速体验 Angular 的 "hello world" 应用。</p><p translation-origin="off" class="card-footer">Angular in Action</p><p translation-result="" class="card-footer">体验 Angular</p></a><a href="/guide/quickstart" class="docs-card" title="Angular Quickstart"><section translation-origin="off">Get Going with Angular</section><section translation-result="">开始使用 Angular</section><p translation-origin="off">Get going on your own environment with the Quickstart.</p><p translation-result="">跟随"快速上手"构建你的开发环境</p><p translation-origin="off" class="card-footer">Quickstart</p><p translation-result="" class="card-footer">快速上手</p></a><a href="/guide/architecture" class="docs-card" title="Angular Architecture"><section translation-origin="off">Fundamentals</section><section translation-result="">基本原理</section><p translation-origin="off">Learn Angular application fundamentals, starting with an architecture overview.</p><p translation-result="">学习 Angular 应用的基本原理。<br>从架构概览开始。</p><p translation-origin="off" class="card-footer">Architecture</p><p translation-result="" class="card-footer">架构</p></a></div><h2 translation-origin="off" id="assumptions">Assumptions<a title="Link to this heading" class="header-link" aria-hidden="true" href="/docs#assumptions"><i class="material-icons">link</i></a></h2><h2 translation-result="" id="assumptions">基本假设<a title="Link to this heading" class="header-link" aria-hidden="true" href="/docs#assumptions"><i class="material-icons">link</i></a></h2><p translation-origin="off">This documentation assumes that you are already familiar with <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/A_re-introduction_to_JavaScript" title="Learn JavaScript">JavaScript</a>, and some of the tools from the <a href="https://babeljs.io/learn-es2015/" title="Latest JavaScript standards">latest standards</a> such as <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes" title="ES2015 Classes">classes</a> and <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/import" title="ES2015 Modules">modules</a>. The code samples are written using <a href="https://www.typescriptlang.org/" title="TypeScript">TypeScript</a>. Most Angular code can be written with just the latest JavaScript, using <a href="https://www.typescriptlang.org/docs/handbook/classes.html" title="TypeScript Types">types</a> for dependency injection, and using <a href="https://www.typescriptlang.org/docs/handbook/decorators.html" title="Decorators">decorators</a> for metadata.</p><p translation-result="">本文档假设你已经熟悉了 <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/A_re-introduction_to_JavaScript" title="Learn JavaScript">JavaScript</a> 和来自 <a href="https://babeljs.io/learn-es2015/" title="Latest JavaScript standards">最新标准</a> 的一些知识，比如 <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes" title="ES2015 Classes">类</a> 和 <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/import" title="ES2015 Modules">模块</a>。 下列代码范例都是用最新版本的 <a href="https://www.typescriptlang.org/" title="TypeScript">TypeScript</a> 写的，利用 <a href="https://www.typescriptlang.org/docs/handbook/classes.html" title="TypeScript Types">类型</a> 实现依赖注入，并使用<a href="https://www.typescriptlang.org/docs/handbook/decorators.html" title="Decorators">装饰器</a>来提供元数据。</p><h2 translation-origin="off" id="feedback">Feedback<a title="Link to this heading" class="header-link" aria-hidden="true" href="/docs#feedback"><i class="material-icons">link</i></a></h2><h2 translation-result="" id="feedback">反馈<a title="Link to this heading" class="header-link" aria-hidden="true" href="/docs#feedback"><i class="material-icons">link</i></a></h2><p translation-origin="off">You can sit with us!</p><p translation-result="">你也可以和我们一起做贡献！</p><p translation-origin="off">You can file documentation <a href="https://github.com/angular/angular/issues" title="Angular Github issues">issues</a> and create <a href="https://github.com/angular/angular/pulls" title="Angular Github pull requests">pull requests</a> on the Angular Github repository. The <a href="https://github.com/angular/angular/blob/master/CONTRIBUTING.md" title="Contributing guide">contributing guide</a> will help you contribute to the community. Our community values respectful, supportive communication. Please consult and adhere to the <a href="https://github.com/angular/code-of-conduct/blob/master/CODE_OF_CONDUCT.md" title="contributor code of conduct">code of conduct</a>.</p><p translation-result="">你可以到 Angular 在 Github 上的仓库中提出文档方面的<a href="https://github.com/angular/angular/issues" title="Angular Github issues">问题</a>，并创建<a href="https://github.com/angular/angular/pulls" title="Angular Github pull requests">Pull Requests</a>。 <a href="https://github.com/angular/angular/blob/master/CONTRIBUTING.md" title="贡献者指南">贡献者指南</a>将会帮助你更好的为社区做贡献。 我们社区的价值观是互相尊重、互相支持。参见<a href="https://github.com/angular/code-of-conduct/blob/master/CODE_OF_CONDUCT.md" title="contributor code of conduct">社区行为规范</a>。</p></div></mat-sidenav-content></mat-sidenav-container><div class="toc-container no-print ng-star-inserted" style="max-height:34485px"><aio-lazy-ce selector="aio-toc"><aio-toc ng-version="6.0.0"></aio-toc></aio-lazy-ce></div><footer class="no-print"><aio-footer><div class="grid-fluid"><div class="footer-block ng-star-inserted"><h3>资源</h3><ul><li class="ng-star-inserted"><a class="link" href="/about" title="Angular 贡献者。">关于</a></li><li class="ng-star-inserted"><a class="link" href="/resources" title="网络上的 Angular 工具、培训、博客等">资源列表</a></li><li class="ng-star-inserted"><a class="link" href="/presskit" title="我们的联系方式、LOGO 和品牌">宣传资料</a></li><li class="ng-star-inserted"><a class="link" href="https://blog.angular.io/" title="Angular 官方博客">博客</a></li></ul></div><div class="footer-block ng-star-inserted"><h3>帮助</h3><ul><li class="ng-star-inserted"><a class="link" href="https://stackoverflow.com/questions/tagged/angular" title="Stack Overflow: 这里的社区会回答你关于 Angular 的技术问题">Stack Overflow</a></li><li class="ng-star-inserted"><a class="link" href="https://gitter.im/angular/angular" title="和老鸟聊 Angular">Gitter</a></li><li class="ng-star-inserted"><a class="link" href="https://github.com/angular/angular/issues" title="在 github 上报告问题和建议。">报告问题</a></li><li class="ng-star-inserted"><a class="link" href="https://github.com/angular/code-of-conduct/blob/master/CODE_OF_CONDUCT.md" title="让我们彼此尊重">行为规范</a></li></ul></div><div class="footer-block ng-star-inserted"><h3>社区</h3><ul><li class="ng-star-inserted"><a class="link" href="/events" title="Post issues and suggestions on github.">活动</a></li><li class="ng-star-inserted"><a class="link" href="http://www.meetup.com/topics/angularjs/" title="参加聚会，向别的开发人员学习">聚会</a></li><li class="ng-star-inserted"><a class="link" href="https://twitter.com/angular" title="Twitter">Twitter</a></li><li class="ng-star-inserted"><a class="link" href="https://github.com/angular/angular" title="GitHub">GitHub</a></li><li class="ng-star-inserted"><a class="link" href="/contribute" title="向 Angular 做贡献">做贡献</a></li></ul></div><div class="footer-block ng-star-inserted"><h3>多语言</h3><ul><li class="ng-star-inserted"><a class="link" href="https://angular.io/" title="English Version.">English Version</a></li><li class="ng-star-inserted"><a class="link" href="https://angular.jp/" title="日本語版">日本語版</a></li></ul></div></div><p>Powered by Google ©2010-2018. 代码授权方式：<a href="/license" title="License text">MIT-style License</a>. 文档授权方式：<a href="http://creativecommons.org/licenses/by/4.0/">CC BY 4.0</a>.</p><p>当前版本：6.1.1-local+sha.fe5eef45e.</p></aio-footer></footer></aio-shell><noscript><div class="background-sky hero"></div><section id="intro"><div class="hero-logo"><img src="assets/images/logos/angular/angular.svg" width="250" height="250"></div><div class="homepage-container"><div class="hero-headline">一套框架，多种平台<br>移动 & 桌面</div></div></section><h2 style="color:red;text-align:center;margin-top:-50px"><b><i>该网站需要浏览器支持 JavaScript</i></b></h2></noscript><script src="runtime.8449e895f8a924ee0f85.js"></script><script src="polyfills.e0d2c3e02a83a3cfb1a1.js"></script><script src="main.6f07a93e787bf7b7efab.js"></script></body></html>