{"id":919,"date":"2023-04-12T14:07:33","date_gmt":"2023-04-12T05:07:33","guid":{"rendered":"http:\/\/edu.ujhb.org\/?p=919"},"modified":"2023-04-12T14:07:33","modified_gmt":"2023-04-12T05:07:33","slug":"getting-start-with-angluar","status":"publish","type":"post","link":"https:\/\/edu.ujhb.org\/?p=919","title":{"rendered":"Getting Start With Angluar"},"content":{"rendered":"\n<p>I want to do a video of IT tutorial, can you arrange the text content of the video tutorial for me according to the content of the website. Let&#8217;s start with the Angular tutorial, and you start by giving me a list of things to cover.<\/p>\n\n\n\n<p>Of course, it can help you plan the content of the Angular tutorial! Here is a possible outline of an Angular tutorial:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Introduction to Angular<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>What is Angular?<\/li>\n\n\n\n<li>History and version of Angular<\/li>\n\n\n\n<li>Why Angular<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>Angular basics<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>TypeScript basics<\/li>\n\n\n\n<li>Overview of the Angular framework<\/li>\n\n\n\n<li>Angular components<\/li>\n\n\n\n<li>Template syntax and data binding<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>Angular Advanced<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Angular directive<\/li>\n\n\n\n<li>Services and dependency injection<\/li>\n\n\n\n<li>Routing and navigation<\/li>\n\n\n\n<li>Angular forms<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>Practical projects<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Build the Angular project<\/li>\n\n\n\n<li>Use the Angular Material UI component library<\/li>\n\n\n\n<li>Use Angular Firebase for back-end integration<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li>Best practices and optimizations<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Angular performance optimization<\/li>\n\n\n\n<li>Angular testing<\/li>\n\n\n\n<li>Angular deployment<\/li>\n<\/ul>\n\n\n\n<p>This is just an outline, and the specifics and tutorial content may need to be adjusted to the length and depth of your video. But this outline should help you start planning your Angular tutorial.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/edu.ujhb.org\/?p=809\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>Please explain in detail what Angular is?<\/p>\n\n\n\n<p>Angular is an open source JavaScript framework for building single-page applications (SPAs). Developed and maintained by the Google team, it was originally called AngularJS, but since the Angular2 version, it has been rewritten to use TypeScript entirely and is simply called Angular.<\/p>\n\n\n\n<p>Angular is an MVC (Model-View-Controller) framework that helps developers quickly build modern web applications with a variety of tools and features. It uses HTML templates and components to build web applications, providing a wealth of built-in directives and services that make it easier for developers to handle common web application tasks such as data binding, form validation, routing, and more.<\/p>\n\n\n\n<p>Angular also provides powerful dependency injection (DI) capabilities that make communication between components simpler and more flexible. Angular also supports custom directives and pipelines, enabling developers to extend the framework functionality according to their needs.<\/p>\n\n\n\n<p>In conclusion, Angular is a powerful web development framework with rich features and tools to help developers quickly build high-performance single-page applications.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/edu.ujhb.org\/?p=809\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>Please explain the history and version of Angular in detail<\/p>\n\n\n\n<p>Angular&#8217;s history dates back to 2009, when Misko Hevery developed a JavaScript framework inside Google, originally called AngularJS. With the popularity of AngularJS in the open source community, it gradually became one of the main frameworks for web development. The AngularJS release lasted until 2016, until Angular 2 was released and AngularJS went into maintenance mode.<\/p>\n\n\n\n<p>Angular 2 is a completely redesigned and rewritten version of the Angular framework, written entirely in TypeScript and incorporating some new technologies and concepts. Angular 2 was officially released in September 2016, and some of the major changes include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5f15\u5165\u4e86\u5b8c\u5168\u57fa\u4e8e\u7ec4\u4ef6\u7684\u67b6\u6784\uff0c\u4f7f\u5f00\u53d1\u4eba\u5458\u80fd\u591f\u66f4\u5bb9\u6613\u5730\u91cd\u7528\u548c\u7ba1\u7406\u4ee3\u7801\u3002<\/li>\n\n\n\n<li>\u91c7\u7528\u4e86\u65b0\u7684\u54cd\u5e94\u5f0f\u7f16\u7a0b\u6a21\u578b\uff0c\u53ef\u4ee5\u66f4\u597d\u5730\u7ba1\u7406\u5e94\u7528\u7a0b\u5e8f\u7684\u72b6\u6001\u548c\u6570\u636e\u6d41\u3002<\/li>\n\n\n\n<li>\u5f15\u5165\u4e86\u65b0\u7684\u6a21\u677f\u8bed\u6cd5\uff0c\u4f7f\u5f00\u53d1\u4eba\u5458\u80fd\u591f\u66f4\u8f7b\u677e\u5730\u7f16\u5199\u548c\u7406\u89e3\u6a21\u677f\u4ee3\u7801\u3002<\/li>\n\n\n\n<li>\u5f15\u5165\u4e86\u4e00\u4e9b\u65b0\u7684\u5de5\u5177\u548c\u670d\u52a1\uff0c\u5982Angular CLI\u548cAngular Universal\uff0c\u4f7f\u5f00\u53d1\u4eba\u5458\u80fd\u591f\u66f4\u8f7b\u677e\u5730\u6784\u5efa\u548c\u90e8\u7f72Angular\u5e94\u7528\u7a0b\u5e8f\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4eceAngular 2\u5f00\u59cb\uff0cAngular\u56e2\u961f\u91c7\u7528\u4e86\u4e00\u4e2a\u4e25\u683c\u7684\u7248\u672c\u63a7\u5236\u8ba1\u5212\uff0c\u6bcf\u516d\u4e2a\u6708\u53d1\u5e03\u4e00\u4e2a\u4e3b\u8981\u7248\u672c\uff0c\u540c\u65f6\u53d1\u5e03\u591a\u4e2a\u5c0f\u7248\u672c\u6765\u4fee\u590d\u9519\u8bef\u548c\u589e\u5f3a\u529f\u80fd\u3002\u4ee5\u4e0b\u662fAngular\u7684\u7248\u672c\u53d1\u5e03\u5386\u53f2\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Angular 2\uff1a2016\u5e749\u6708<\/li>\n\n\n\n<li>Angular 4\uff1a2017\u5e743\u6708<\/li>\n\n\n\n<li>Angular 5\uff1a2017\u5e7411\u6708<\/li>\n\n\n\n<li>Angular 6\uff1a2018\u5e745\u6708<\/li>\n\n\n\n<li>Angular 7\uff1a2018\u5e7410\u6708<\/li>\n\n\n\n<li>Angular 8\uff1a2019\u5e745\u6708<\/li>\n\n\n\n<li>Angular 9\uff1a2020\u5e742\u6708<\/li>\n\n\n\n<li>Angular 10\uff1a2020\u5e746\u6708<\/li>\n\n\n\n<li>Angular 11\uff1a2020\u5e7411\u6708<\/li>\n\n\n\n<li>Angular 12\uff1a2021\u5e745\u6708<\/li>\n<\/ul>\n\n\n\n<p>\u6bcf\u4e2a\u7248\u672c\u90fd\u5e26\u6765\u4e86\u65b0\u7684\u529f\u80fd\u3001\u6539\u8fdb\u548c\u4fee\u590d\u7a0b\u5e8f\u9519\u8bef\u3002\u5bf9\u4e8e\u9700\u8981\u957f\u671f\u652f\u6301\u7684\u7248\u672c\uff0cAngular\u56e2\u961f\u901a\u5e38\u4f1a\u53d1\u5e03\u4e00\u4e2aLTS\uff08\u957f\u671f\u652f\u6301\uff09\u7248\u672c\uff0c\u8be5\u7248\u672c\u5c06\u5f97\u5230\u4e09\u5e74\u7684\u652f\u6301\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/edu.ujhb.org\/?p=809\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u4e3a\u4ec0\u4e48\u9009\u62e9Angular<\/p>\n\n\n\n<p>\u9009\u62e9Angular\u4f5c\u4e3a\u524d\u7aef\u5f00\u53d1\u6846\u67b6\u7684\u539f\u56e0\u6709\u5f88\u591a\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4e3b\u8981\u7684\u539f\u56e0\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u4e30\u5bcc\u7684\u529f\u80fd\u548c\u5de5\u5177\uff1aAngular\u63d0\u4f9b\u4e86\u8bb8\u591a\u5f3a\u5927\u7684\u5185\u7f6e\u529f\u80fd\u548c\u5de5\u5177\uff0c\u5982\u6570\u636e\u7ed1\u5b9a\u3001\u4f9d\u8d56\u6ce8\u5165\u3001\u7ec4\u4ef6\u3001\u6307\u4ee4\u3001\u8def\u7531\u7b49\u7b49\u3002\u8fd9\u4e9b\u529f\u80fd\u548c\u5de5\u5177\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u66f4\u8f7b\u677e\u5730\u6784\u5efa\u590d\u6742\u7684\u5355\u9875\u9762\u5e94\u7528\u7a0b\u5e8f\u3002<\/li>\n\n\n\n<li>\u6613\u4e8e\u5b66\u4e60\u548c\u4f7f\u7528\uff1aAngular\u7684\u5f00\u53d1\u8bed\u8a00TypeScript\u662f\u4e00\u79cd\u73b0\u4ee3\u7684\u9759\u6001\u7c7b\u578b\u8bed\u8a00\uff0c\u5177\u6709\u8bb8\u591a\u4f18\u79c0\u7684\u7279\u6027\uff0c\u5982\u7c7b\u578b\u68c0\u67e5\u548c\u4ee3\u7801\u63d0\u793a\u3002\u6b64\u5916\uff0cAngular\u8fd8\u63d0\u4f9b\u4e86\u6e05\u6670\u7684\u6587\u6863\u548c\u4e30\u5bcc\u7684\u6559\u7a0b\uff0c\u4f7f\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u8f7b\u677e\u5730\u5165\u95e8\u5e76\u5f00\u59cb\u6784\u5efa\u5e94\u7528\u7a0b\u5e8f\u3002<\/li>\n\n\n\n<li>\u5f3a\u5927\u7684\u6027\u80fd\u548c\u53ef\u6269\u5c55\u6027\uff1aAngular\u4f7f\u7528\u865a\u62dfDOM\u548c\u667a\u80fd\u53d8\u66f4\u68c0\u6d4b\u6280\u672f\uff0c\u53ef\u4ee5\u5feb\u901f\u66f4\u65b0\u5e94\u7528\u7a0b\u5e8f\u7684\u89c6\u56fe\uff0c\u5e76\u4fdd\u6301\u9ad8\u6027\u80fd\u3002\u6b64\u5916\uff0cAngular\u7684\u6a21\u5757\u5316\u67b6\u6784\u548c\u4f9d\u8d56\u6ce8\u5165\u529f\u80fd\u4f7f\u5176\u5177\u6709\u826f\u597d\u7684\u53ef\u6269\u5c55\u6027\uff0c\u53ef\u4ee5\u66f4\u5bb9\u6613\u5730\u8fdb\u884c\u7ef4\u62a4\u548c\u66f4\u65b0\u3002<\/li>\n\n\n\n<li>\u652f\u6301\u79fb\u52a8\u7aef\u5f00\u53d1\uff1aAngular\u53ef\u4ee5\u7528\u4e8e\u6784\u5efa\u79fb\u52a8\u5e94\u7528\u7a0b\u5e8f\uff0c\u5e76\u4e14\u53ef\u4ee5\u4e0eIonic\u7b49\u79fb\u52a8\u5e94\u7528\u7a0b\u5e8f\u6846\u67b6\u7ed3\u5408\u4f7f\u7528\uff0c\u4f7f\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u66f4\u8f7b\u677e\u5730\u521b\u5efa\u8de8\u5e73\u53f0\u79fb\u52a8\u5e94\u7528\u7a0b\u5e8f\u3002<\/li>\n\n\n\n<li>\u7531Google\u7ef4\u62a4\uff1a\u4f5c\u4e3a\u4e00\u4e2a\u7531Google\u56e2\u961f\u7ef4\u62a4\u7684\u5f00\u6e90\u9879\u76ee\uff0cAngular\u5f97\u5230\u4e86\u5e7f\u6cdb\u7684\u652f\u6301\u548c\u793e\u533a\u8d21\u732e\uff0c\u8fd9\u610f\u5473\u7740\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u83b7\u5f97\u9ad8\u8d28\u91cf\u7684\u66f4\u65b0\u548c\u652f\u6301\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u603b\u4e4b\uff0c\u9009\u62e9Angular\u4f5c\u4e3a\u524d\u7aef\u6846\u67b6\u53ef\u4ee5\u5e26\u6765\u8bb8\u591a\u4f18\u70b9\uff0c\u5982\u4e30\u5bcc\u7684\u529f\u80fd\u3001\u6613\u5b66\u6613\u7528\u3001\u5f3a\u5927\u7684\u6027\u80fd\u548c\u53ef\u6269\u5c55\u6027\u3001\u652f\u6301\u79fb\u52a8\u7aef\u5f00\u53d1\u7b49\u7b49\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/edu.ujhb.org\/?p=809\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caTypeScript\u57fa\u7840\u77e5\u8bc6<\/p>\n\n\n\n<p>TypeScript\u662f\u4e00\u79cd\u7531\u5fae\u8f6f\u5f00\u53d1\u7684\u9759\u6001\u7c7b\u578b\u8bed\u8a00\uff0c\u5b83\u662fJavaScript\u7684\u8d85\u96c6\uff0c\u53ef\u4ee5\u4e3aJavaScript\u4ee3\u7801\u63d0\u4f9b\u9759\u6001\u7c7b\u578b\u68c0\u67e5\u548c\u5176\u4ed6\u4e00\u4e9b\u9ad8\u7ea7\u529f\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9bTypeScript\u57fa\u7840\u77e5\u8bc6\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u7c7b\u578b\u6ce8\u89e3\uff1aTypeScript\u63d0\u4f9b\u4e86\u4e00\u79cd\u8bed\u6cd5\u6765\u4e3a\u53d8\u91cf\u3001\u51fd\u6570\u3001\u65b9\u6cd5\u3001\u7c7b\u7b49\u7b49\u6dfb\u52a0\u7c7b\u578b\u6ce8\u89e3\uff0c\u8fd9\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u66f4\u597d\u5730\u7406\u89e3\u4ee3\u7801\uff0c\u5e76\u63d0\u4f9b\u7f16\u8bd1\u65f6\u7c7b\u578b\u68c0\u67e5\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">typescriptCopy code<code>let name: string = \"John\";\nfunction sayHello(name: string) {\n  console.log(\"Hello, \" + name);\n}\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u63a5\u53e3\uff1aTypeScript\u652f\u6301\u63a5\u53e3\uff0c\u5b83\u53ef\u4ee5\u7528\u6765\u5b9a\u4e49\u5bf9\u8c61\u7684\u5f62\u72b6\u548c\u884c\u4e3a\u3002\u4f7f\u7528\u63a5\u53e3\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">typescriptCopy code<code>interface Person {\n  name: string;\n  age: number;\n  sayHello(): void;\n}\n\nclass Student implements Person {\n  name = \"John\";\n  age = 18;\n  sayHello() {\n    console.log(\"Hello, I am \" + this.name);\n  }\n}\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u7c7b\uff1aTypeScript\u652f\u6301\u7c7b\uff0c\u5b83\u53ef\u4ee5\u7528\u6765\u521b\u5efa\u5bf9\u8c61\u548c\u5c01\u88c5\u4ee3\u7801\u3002\u4f7f\u7528\u7c7b\u53ef\u4ee5\u66f4\u597d\u5730\u7ec4\u7ec7\u4ee3\u7801\uff0c\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u7ef4\u62a4\u6027\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">typescriptCopy code<code>class Person {\n  name: string;\n  age: number;\n\n  constructor(name: string, age: number) {\n    this.name = name;\n    this.age = age;\n  }\n\n  sayHello() {\n    console.log(\"Hello, I am \" + this.name);\n  }\n}\n\nlet person = new Person(\"John\", 18);\nperson.sayHello();\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>Generics: TypeScript supports generics, which can be used to write reusable code and provide compile-time type checking.<\/li>\n<\/ol>\n\n\n\n<p>For example:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>function identity&lt;T&gt;(arg: T): T {\n  return arg;\n}\n\nlet result = identity&lt;string&gt;(\"Hello\");\nconsole.log(result);\n<\/code><\/pre>\n\n\n\n<p>These are some of the basics of TypeScript that can help developers better understand and use TypeScript, and improve the quality and maintainability of code.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/edu.ujhb.org\/?p=809\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>Please explain the Angular framework overview in detail<\/p>\n\n\n\n<p>Angular is a front-end framework for building Single Page Applications. It is an open source project developed and maintained by the Google team and is a framework written using TypeScript.<\/p>\n\n\n\n<p>Angular provides many powerful features and tools such as data binding, dependency injection, components, directives, routing, services, and many more. These features can help developers more easily build complex, single-page applications and improve code maintainability and extensibility.<\/p>\n\n\n\n<p>Angular&#8217;s architecture is based on modularity, which divides the entire application into many modules and provides dependency injection capabilities to make communication and data sharing between modules simpler and more flexible. This makes it easier for developers to design and develop modularly, making code easier to maintain and update.<\/p>\n\n\n\n<p>Angular also offers powerful tools such as the Angular CLI (Command Line Interface) and Angular Universal (server rendering) that help developers more easily create, build, and deploy Angular applications.<\/p>\n\n\n\n<p>In conclusion, Angular is a powerful front-end framework that provides many features and tools that make it easier for developers to build complex single-page applications and improve the maintainability and extensibility of code.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/edu.ujhb.org\/?p=809\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>Please explain the Angular component in detail<\/p>\n\n\n\n<p>A component in Angular is a reusable block of code that manages the views and logic in an application. A component typically represents a section or widget in a user interface, such as a navigation bar, a form, a list, and so on.<\/p>\n\n\n\n<p>Components consist of the following parts:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Template: A template defines the view structure of a component, which consists of HTML and Angular template syntax. Templates, such as directives, expressions, event bindings, property bindings, and more can be used to present data and manage user interaction.<\/li>\n<\/ol>\n\n\n\n<p>For example:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>@Component({\n  selector: 'app-greeting',\n  template: `\n    &lt;h1&gt;Hello, {{ name }}!&lt;\/h1&gt;\n    &lt;button (click)=\"sayHello()\"&gt;Say Hello&lt;\/button&gt;\n  `\n})\nexport class GreetingComponent {\n  name = 'John';\n\n  sayHello() {\n    alert('Hello, ' + this.name);\n  }\n}\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u7c7b\uff08Class\uff09\uff1a\u7c7b\u5b9a\u4e49\u4e86\u7ec4\u4ef6\u7684\u884c\u4e3a\u548c\u6570\u636e\uff0c\u5b83\u7531TypeScript\u7f16\u5199\u3002\u7c7b\u4e2d\u53ef\u4ee5\u5b9a\u4e49\u5c5e\u6027\u3001\u65b9\u6cd5\u3001\u751f\u547d\u5468\u671f\u94a9\u5b50\u7b49\u7b49\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>@Component({\n  selector: 'app-greeting',\n  template: `\n    &lt;h1&gt;Hello, {{ name }}!&lt;\/h1&gt;\n    &lt;button (click)=\"sayHello()\"&gt;Say Hello&lt;\/button&gt;\n  `\n})\nexport class GreetingComponent {\n  name = 'John';\n\n  sayHello() {\n    alert('Hello, ' + this.name);\n  }\n}\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u5143\u6570\u636e\uff08Metadata\uff09\uff1a\u5143\u6570\u636e\u63d0\u4f9b\u4e86\u7ec4\u4ef6\u7684\u914d\u7f6e\u4fe1\u606f\uff0c\u5b83\u7531\u88c5\u9970\u5668\u63d0\u4f9b\u3002\u5143\u6570\u636e\u4e2d\u5305\u542b\u4e86\u7ec4\u4ef6\u7684\u9009\u62e9\u5668\u3001\u6a21\u677f\u3001\u6837\u5f0f\u3001\u4f9d\u8d56\u7b49\u7b49\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>@Component({\n  selector: 'app-greeting',\n  template: `\n    &lt;h1&gt;Hello, {{ name }}!&lt;\/h1&gt;\n    &lt;button (click)=\"sayHello()\"&gt;Say Hello&lt;\/button&gt;\n  `,\n  styles: [\n    `\n    h1 {\n      color: red;\n    }\n    `\n  ],\n  providers: [GreetingService]\n})\nexport class GreetingComponent {\n  name = 'John';\n\n  constructor(private greetingService: GreetingService) {}\n\n  sayHello() {\n    this.greetingService.sayHello(this.name);\n  }\n}\n<\/code><\/pre>\n\n\n\n<p>Angular\u4e2d\u7684\u7ec4\u4ef6\u662f\u4e00\u79cd\u53ef\u91cd\u7528\u7684\u4ee3\u7801\u5757\uff0c\u5b83\u4eec\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u66f4\u8f7b\u677e\u5730\u7ba1\u7406\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u89c6\u56fe\u548c\u903b\u8f91\u3002\u7ec4\u4ef6\u901a\u5e38\u4ee3\u8868\u7528\u6237\u754c\u9762\u4e2d\u7684\u4e00\u4e2a\u90e8\u5206\u6216\u4e00\u4e2a\u5c0f\u90e8\u4ef6\uff0c\u5e76\u7531\u6a21\u677f\u3001\u7c7b\u548c\u5143\u6570\u636e\u7ec4\u6210\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/edu.ujhb.org\/?p=809\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caAngular\u6a21\u677f\u8bed\u6cd5\u548c\u6570\u636e\u7ed1\u5b9a<\/p>\n\n\n\n<p>Angular\u6a21\u677f\u8bed\u6cd5\u548c\u6570\u636e\u7ed1\u5b9a\u662fAngular\u4e2d\u6700\u91cd\u8981\u7684\u7279\u6027\u4e4b\u4e00\u3002\u6a21\u677f\u8bed\u6cd5\u4f7f\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u5728HTML\u4e2d\u4f7f\u7528Angular\u6307\u4ee4\u3001\u8868\u8fbe\u5f0f\u548c\u4e8b\u4ef6\u7ed1\u5b9a\u7b49\u7b49\u6765\u52a8\u6001\u5730\u5c55\u793a\u6570\u636e\u548c\u7ba1\u7406\u7528\u6237\u4ea4\u4e92\uff0c\u6570\u636e\u7ed1\u5b9a\u5219\u4f7f\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u5728\u7ec4\u4ef6\u548c\u89c6\u56fe\u4e4b\u95f4\u53cc\u5411\u7ed1\u5b9a\u6570\u636e\uff0c\u5b9e\u73b0\u6570\u636e\u7684\u81ea\u52a8\u66f4\u65b0\u548c\u540c\u6b65\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u63d2\u503c\u8868\u8fbe\u5f0f\uff08Interpolation\uff09\uff1a\u63d2\u503c\u8868\u8fbe\u5f0f\u7528\u4e8e\u5c06\u7ec4\u4ef6\u4e2d\u7684\u5c5e\u6027\u7ed1\u5b9a\u5230\u6a21\u677f\u4e2d\u7684\u6587\u672c\u6216\u5c5e\u6027\u4e2d\uff0c\u4ee5\u5c55\u793a\u6570\u636e\u3002\u4f7f\u7528{{ }}\u6765\u5305\u88f9\u9700\u8981\u7ed1\u5b9a\u7684\u5c5e\u6027\u6216\u8868\u8fbe\u5f0f\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>@Component({\n  selector: 'app-greeting',\n  template: `\n    &lt;h1&gt;Hello, {{ name }}!&lt;\/h1&gt;\n    &lt;img [src]=\"imageUrl\"&gt;\n  `\n})\nexport class GreetingComponent {\n  name = 'John';\n  imageUrl = 'https:\/\/example.com\/image.png';\n}\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u5c5e\u6027\u7ed1\u5b9a\uff08Property Binding\uff09\uff1a\u5c5e\u6027\u7ed1\u5b9a\u7528\u4e8e\u5c06\u7ec4\u4ef6\u4e2d\u7684\u5c5e\u6027\u7ed1\u5b9a\u5230\u6a21\u677f\u4e2d\u7684\u5143\u7d20\u5c5e\u6027\u4e2d\uff0c\u4ee5\u63a7\u5236\u5143\u7d20\u7684\u72b6\u6001\u548c\u884c\u4e3a\u3002\u4f7f\u7528[ ]\u6765\u5305\u88f9\u9700\u8981\u7ed1\u5b9a\u7684\u5c5e\u6027\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>@Component({\n  selector: 'app-greeting',\n  template: `\n    &lt;input [value]=\"name\" (input)=\"name = $event.target.value\"&gt;\n    &lt;button [disabled]=\"isDisabled\"&gt;Say Hello&lt;\/button&gt;\n  `\n})\nexport class GreetingComponent {\n  name = 'John';\n  isDisabled = false;\n}\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u4e8b\u4ef6\u7ed1\u5b9a\uff08Event Binding\uff09\uff1a\u4e8b\u4ef6\u7ed1\u5b9a\u7528\u4e8e\u5c06\u6a21\u677f\u4e2d\u7684\u4e8b\u4ef6\u7ed1\u5b9a\u5230\u7ec4\u4ef6\u4e2d\u7684\u65b9\u6cd5\u4e0a\uff0c\u4ee5\u54cd\u5e94\u7528\u6237\u7684\u4ea4\u4e92\u3002\u4f7f\u7528( )\u6765\u5305\u88f9\u9700\u8981\u7ed1\u5b9a\u7684\u4e8b\u4ef6\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>@Component({\n  selector: 'app-greeting',\n  template: `\n    &lt;input [value]=\"name\" (input)=\"name = $event.target.value\"&gt;\n    &lt;button (click)=\"sayHello()\"&gt;Say Hello&lt;\/button&gt;\n  `\n})\nexport class GreetingComponent {\n  name = 'John';\n\n  sayHello() {\n    alert('Hello, ' + this.name);\n  }\n}\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>\u53cc\u5411\u7ed1\u5b9a\uff08Two-Way Binding\uff09\uff1a\u53cc\u5411\u7ed1\u5b9a\u7528\u4e8e\u5c06\u6a21\u677f\u4e2d\u7684\u8f93\u5165\u6846\u7684\u503c\u4e0e\u7ec4\u4ef6\u4e2d\u7684\u5c5e\u6027\u53cc\u5411\u7ed1\u5b9a\uff0c\u4ee5\u5b9e\u73b0\u8f93\u5165\u6846\u7684\u81ea\u52a8\u66f4\u65b0\u548c\u540c\u6b65\u3002\u4f7f\u7528[( )]\u6765\u5305\u88f9\u9700\u8981\u7ed1\u5b9a\u7684\u5c5e\u6027\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>@Component({\n  selector: 'app-greeting',\n  template: `\n    &lt;input [(ngModel)]=\"name\"&gt;\n    &lt;button (click)=\"sayHello()\"&gt;Say Hello&lt;\/button&gt;\n  `\n})\nexport class GreetingComponent {\n  name = 'John';\n\n  sayHello() {\n    alert('Hello, ' + this.name);\n  }\n}\n<\/code><\/pre>\n\n\n\n<p>Angular\u6a21\u677f\u8bed\u6cd5\u548c\u6570\u636e\u7ed1\u5b9a\u4f7f\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u66f4\u8f7b\u677e\u5730\u7ba1\u7406\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u89c6\u56fe\u548c\u6570\u636e\u3002\u63d2\u503c\u8868\u8fbe\u5f0f\u3001\u5c5e\u6027\u7ed1\u5b9a\u3001\u4e8b\u4ef6\u7ed1\u5b9a\u548c\u53cc\u5411\u7ed1\u5b9a\u7b49\u7b49\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u5b9e\u73b0\u52a8\u6001\u7684UI\u548c\u81ea\u52a8\u5316\u7684\u6570\u636e\u540c\u6b65\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/edu.ujhb.org\/?p=809\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caAngular\u7ec4\u4ef6\u95f4\u7684\u53c2\u6570\u4f20\u9012<\/p>\n\n\n\n<p>\u5728Angular\u4e2d\uff0c\u7ec4\u4ef6\u95f4\u7684\u53c2\u6570\u4f20\u9012\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u51e0\u79cd\u65b9\u5f0f\u6765\u5b9e\u73b0\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u8f93\u5165\u5c5e\u6027\uff08@Input\uff09\uff1a\u901a\u8fc7\u5c06\u7236\u7ec4\u4ef6\u4e2d\u7684\u6570\u636e\u7ed1\u5b9a\u5230\u5b50\u7ec4\u4ef6\u7684\u8f93\u5165\u5c5e\u6027\u4e0a\u6765\u4f20\u9012\u53c2\u6570\u3002\u5728\u5b50\u7ec4\u4ef6\u4e2d\u901a\u8fc7\u88c5\u9970\u5668@Input()\u6765\u58f0\u660e\u8f93\u5165\u5c5e\u6027\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>\/\/ \u7236\u7ec4\u4ef6\n@Component({\n  selector: 'app-parent',\n  template: `\n    &lt;app-child [message]=\"greeting\"&gt;&lt;\/app-child&gt;\n  `\n})\nexport class ParentComponent {\n  greeting = 'Hello';\n}\n\n\/\/ \u5b50\u7ec4\u4ef6\n@Component({\n  selector: 'app-child',\n  template: `\n    &lt;p&gt;{{ message }}, World!&lt;\/p&gt;\n  `\n})\nexport class ChildComponent {\n  @Input() message: string;\n}\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u8f93\u51fa\u5c5e\u6027\uff08@Output\uff09\u548c\u4e8b\u4ef6\u7ed1\u5b9a\uff1a\u901a\u8fc7\u5728\u5b50\u7ec4\u4ef6\u4e2d\u5b9a\u4e49\u8f93\u51fa\u5c5e\u6027\uff0c\u5e76\u901a\u8fc7\u4e8b\u4ef6\u89e6\u53d1\u6765\u4f20\u9012\u53c2\u6570\u3002\u5728\u7236\u7ec4\u4ef6\u4e2d\u901a\u8fc7\u4e8b\u4ef6\u7ed1\u5b9a\u6765\u76d1\u542c\u5b50\u7ec4\u4ef6\u7684\u8f93\u51fa\u5c5e\u6027\uff0c\u5e76\u5728\u7236\u7ec4\u4ef6\u4e2d\u5904\u7406\u4e8b\u4ef6\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>\/\/ \u5b50\u7ec4\u4ef6\n@Component({\n  selector: 'app-child',\n  template: `\n    &lt;button (click)=\"sendMessage()\"&gt;Send Message&lt;\/button&gt;\n  `\n})\nexport class ChildComponent {\n  @Output() messageSent = new EventEmitter&lt;string&gt;();\n\n  sendMessage() {\n    this.messageSent.emit('Hello from Child!');\n  }\n}\n\n\/\/ \u7236\u7ec4\u4ef6\n@Component({\n  selector: 'app-parent',\n  template: `\n    &lt;app-child (messageSent)=\"receiveMessage($event)\"&gt;&lt;\/app-child&gt;\n    &lt;p&gt;{{ receivedMessage }}&lt;\/p&gt;\n  `\n})\nexport class ParentComponent {\n  receivedMessage: string;\n\n  receiveMessage(message: string) {\n    this.receivedMessage = message;\n  }\n}\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u670d\u52a1\uff08Service\uff09\uff1a\u901a\u8fc7\u5b9a\u4e49\u4e00\u4e2a\u670d\u52a1\u6765\u5171\u4eab\u6570\u636e\u548c\u72b6\u6001\uff0c\u4ece\u800c\u5728\u7ec4\u4ef6\u4e4b\u95f4\u4f20\u9012\u53c2\u6570\u3002\u670d\u52a1\u53ef\u4ee5\u901a\u8fc7\u4f9d\u8d56\u6ce8\u5165\u7684\u65b9\u5f0f\u5728\u7ec4\u4ef6\u4e2d\u4f7f\u7528\uff0c\u5e76\u4e14\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u7ec4\u4ef6\u4e4b\u95f4\u5171\u4eab\u6570\u636e\u548c\u72b6\u6001\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">typescriptCopy code<code>\/\/ \u670d\u52a1\n@Injectable({\n  providedIn: 'root'\n})\nexport class DataService {\n  private messageSource = new BehaviorSubject&lt;string&gt;('Hello from Service!');\n  currentMessage = this.messageSource.asObservable();\n\n  changeMessage(message: string) {\n    this.messageSource.next(message);\n  }\n}\n\n\/\/ \u5b50\u7ec4\u4ef6\n@Component({\n  selector: 'app-child',\n  template: `\n    &lt;button (click)=\"sendMessage()\"&gt;Send Message&lt;\/button&gt;\n  `\n})\nexport class ChildComponent {\n  constructor(private dataService: DataService) {}\n\n  sendMessage() {\n    this.dataService.changeMessage('Hello from Child!');\n  }\n}\n\n\/\/ \u7236\u7ec4\u4ef6\n@Component({\n  selector: 'app-parent',\n  template: `\n    &lt;p&gt;{{ receivedMessage }}&lt;\/p&gt;\n  `\n})\nexport class ParentComponent {\n  receivedMessage: string;\n\n  constructor(private dataService: DataService) {}\n\n  ngOnInit() {\n    this.dataService.currentMessage.subscribe(message =&gt; this.receivedMessage = message);\n  }\n}\n<\/code><\/pre>\n\n\n\n<p>\u901a\u8fc7\u8f93\u5165\u5c5e\u6027\u3001\u8f93\u51fa\u5c5e\u6027\u548c\u670d\u52a1\u7b49\u65b9\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u5728Angular\u7ec4\u4ef6\u95f4\u65b9\u4fbf\u5730\u4f20\u9012\u53c2\u6570\u548c\u5171\u4eab\u6570\u636e\uff0c\u4f7f\u5f97\u6211\u4eec\u7684\u5e94\u7528\u7a0b\u5e8f\u53d8\u5f97\u66f4\u52a0\u7075\u6d3b\u548c\u53ef\u590d\u7528\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/edu.ujhb.org\/?p=809\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caAngular\u7684\u6761\u4ef6\u8868\u8fbe\u5f0f<\/p>\n\n\n\n<p>\u5728Angular\u4e2d\uff0c\u6761\u4ef6\u8868\u8fbe\u5f0f\u53ef\u4ee5\u7528\u6765\u63a7\u5236\u5143\u7d20\u7684\u663e\u793a\u548c\u9690\u85cf\uff0c\u5e38\u89c1\u7684\u7528\u6cd5\u5305\u62ec\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>ngIf\uff1a\u6839\u636e\u6761\u4ef6\u6765\u6dfb\u52a0\u6216\u79fb\u9664\u5143\u7d20\u3002\u4f7f\u7528\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u628a\u4e00\u4e2a\u8868\u8fbe\u5f0f\u4f5c\u4e3angIf\u6307\u4ee4\u7684\u503c\uff0c\u5982\u679c\u8868\u8fbe\u5f0f\u4e3a\u771f\uff0c\u8be5\u5143\u7d20\u5c06\u88ab\u6dfb\u52a0\u5230DOM\u4e2d\uff1b\u5426\u5219\uff0c\u8be5\u5143\u7d20\u5c06\u88ab\u4eceDOM\u4e2d\u79fb\u9664\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">phpCopy code<code>&lt;div *ngIf=\"isLoggedIn\"&gt;Welcome, {{ username }}!&lt;\/div&gt;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u5982\u679cisLoggedIn\u4e3a\u771f\uff0c\u5219\u663e\u793a\u6b22\u8fce\u6d88\u606f\u548c\u7528\u6237\u540d\uff1b\u5426\u5219\uff0c\u8fd9\u4e2adiv\u5143\u7d20\u5c06\u4eceDOM\u4e2d\u79fb\u9664\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>ngSwitch\uff1a\u6839\u636e\u591a\u4e2a\u6761\u4ef6\u6765\u9009\u62e9\u4e0d\u540c\u7684\u5143\u7d20\u3002\u4f7f\u7528\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u628a\u4e00\u4e2a\u8868\u8fbe\u5f0f\u4f5c\u4e3angSwitch\u6307\u4ee4\u7684\u503c\uff0c\u7136\u540e\u4e3a\u4e0d\u540c\u7684\u6761\u4ef6\u6dfb\u52a0ngSwitchCase\u6307\u4ee4\uff0c\u8fd9\u4e9b\u6307\u4ee4\u7684\u503c\u4e0e\u8868\u8fbe\u5f0f\u7684\u503c\u8fdb\u884c\u6bd4\u8f83\uff0c\u5982\u679c\u5339\u914d\uff0c\u76f8\u5e94\u7684\u5143\u7d20\u5c06\u88ab\u6dfb\u52a0\u5230DOM\u4e2d\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">phpCopy code<code>&lt;div [ngSwitch]=\"color\"&gt;\n  &lt;div *ngSwitchCase=\"'red'\"&gt;You chose red.&lt;\/div&gt;\n  &lt;div *ngSwitchCase=\"'blue'\"&gt;You chose blue.&lt;\/div&gt;\n  &lt;div *ngSwitchCase=\"'green'\"&gt;You chose green.&lt;\/div&gt;\n  &lt;div *ngSwitchDefault&gt;You haven't chosen any color.&lt;\/div&gt;\n&lt;\/div&gt;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u6839\u636ecolor\u7684\u503c\uff0c\u9009\u62e9\u4e0d\u540c\u7684\u5143\u7d20\u8fdb\u884c\u663e\u793a\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>ngClass\uff1a\u6839\u636e\u6761\u4ef6\u6765\u6dfb\u52a0\u6216\u79fb\u9664CSS\u7c7b\u3002\u4f7f\u7528\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u628a\u4e00\u4e2a\u8868\u8fbe\u5f0f\u4f5c\u4e3angClass\u6307\u4ee4\u7684\u503c\uff0c\u5982\u679c\u8868\u8fbe\u5f0f\u4e3a\u771f\uff0c\u5219\u6dfb\u52a0\u6307\u5b9a\u7684CSS\u7c7b\uff1b\u5426\u5219\uff0c\u79fb\u9664\u6307\u5b9a\u7684CSS\u7c7b\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>&lt;div [ngClass]=\"{ 'text-bold': isBold, 'text-italic': isItalic }\"&gt;This text may be bold and\/or italic.&lt;\/div&gt;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u6839\u636eisBold\u548cisItalic\u7684\u503c\uff0c\u6dfb\u52a0\u6216\u79fb\u9664\u76f8\u5e94\u7684CSS\u7c7b\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>ngStyle\uff1a\u6839\u636e\u6761\u4ef6\u6765\u8bbe\u7f6e\u5143\u7d20\u7684\u6837\u5f0f\u3002\u4f7f\u7528\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u628a\u4e00\u4e2a\u8868\u8fbe\u5f0f\u4f5c\u4e3angStyle\u6307\u4ee4\u7684\u503c\uff0c\u8be5\u8868\u8fbe\u5f0f\u5e94\u8be5\u8fd4\u56de\u4e00\u4e2a\u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u7684\u5c5e\u6027\u540d\u662fCSS\u5c5e\u6027\u540d\uff0c\u5c5e\u6027\u503c\u662fCSS\u5c5e\u6027\u503c\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>&lt;div [ngStyle]=\"{ 'color': textColor, 'font-size': fontSize + 'px' }\"&gt;This text may have different colors and font sizes.&lt;\/div&gt;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u6839\u636etextColor\u548cfontSize\u7684\u503c\uff0c\u8bbe\u7f6e\u76f8\u5e94\u7684CSS\u6837\u5f0f\u3002<\/p>\n\n\n\n<p>\u901a\u8fc7\u6761\u4ef6\u8868\u8fbe\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u5728Angular\u4e2d\u975e\u5e38\u65b9\u4fbf\u5730\u63a7\u5236\u5143\u7d20\u7684\u663e\u793a\u548c\u9690\u85cf\u3001\u6837\u5f0f\u548c\u5185\u5bb9\uff0c\u8ba9\u6211\u4eec\u7684\u5e94\u7528\u7a0b\u5e8f\u66f4\u52a0\u7075\u6d3b\u548c\u53ef\u7ef4\u62a4\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/edu.ujhb.org\/?p=809\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caAngular\u7684\u5faa\u73af\u8868\u8fbe\u5f0f<\/p>\n\n\n\n<p>\u5728Angular\u4e2d\uff0c\u5faa\u73af\u8868\u8fbe\u5f0f\u53ef\u4ee5\u7528\u6765\u5faa\u73af\u904d\u5386\u4e00\u4e2a\u96c6\u5408\u6216\u6570\u7ec4\uff0c\u5e76\u751f\u6210\u591a\u4e2a\u5143\u7d20\u6216\u5b50\u7ec4\u4ef6\u3002\u5e38\u89c1\u7684\u5faa\u73af\u8868\u8fbe\u5f0f\u5305\u62ec\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>ngFor\uff1a\u6839\u636e\u4e00\u4e2a\u96c6\u5408\u6216\u6570\u7ec4\u6765\u5faa\u73af\u751f\u6210\u591a\u4e2a\u5143\u7d20\u6216\u5b50\u7ec4\u4ef6\u3002\u4f7f\u7528\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u628a\u4e00\u4e2a\u8868\u8fbe\u5f0f\u4f5c\u4e3angFor\u6307\u4ee4\u7684\u503c\uff0c\u8be5\u8868\u8fbe\u5f0f\u5e94\u8be5\u8fd4\u56de\u4e00\u4e2a\u96c6\u5408\u6216\u6570\u7ec4\uff0c\u7136\u540e\u4f7f\u7528let\u5173\u952e\u5b57\u6765\u5b9a\u4e49\u4e00\u4e2a\u5faa\u73af\u53d8\u91cf\uff0c\u8be5\u53d8\u91cf\u5c06\u4f9d\u6b21\u8d4b\u503c\u4e3a\u96c6\u5408\u6216\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\uff0c\u6700\u540e\u6211\u4eec\u53ef\u4ee5\u5728\u6a21\u677f\u4e2d\u4f7f\u7528\u8be5\u53d8\u91cf\u6765\u751f\u6210\u591a\u4e2a\u5143\u7d20\u6216\u5b50\u7ec4\u4ef6\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">phpCopy code<code>&lt;div *ngFor=\"let item of items\"&gt;{{ item }}&lt;\/div&gt;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u6839\u636eitems\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u6765\u751f\u6210\u591a\u4e2adiv\u5143\u7d20\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>ngForOf\uff1a\u4e0engFor\u7c7b\u4f3c\uff0c\u4e5f\u662f\u6839\u636e\u4e00\u4e2a\u96c6\u5408\u6216\u6570\u7ec4\u6765\u5faa\u73af\u751f\u6210\u591a\u4e2a\u5143\u7d20\u6216\u5b50\u7ec4\u4ef6\uff0c\u4e0d\u540c\u4e4b\u5904\u5728\u4e8engForOf\u66f4\u52a0\u7075\u6d3b\uff0c\u53ef\u4ee5\u7528\u4e8e\u4efb\u4f55\u53ef\u8fed\u4ee3\u5bf9\u8c61\uff0c\u4f8b\u5982Map\u3001Set\u7b49\u3002\u4f7f\u7528\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u628a\u4e00\u4e2a\u8868\u8fbe\u5f0f\u4f5c\u4e3angForOf\u6307\u4ee4\u7684\u503c\uff0c\u8be5\u8868\u8fbe\u5f0f\u5e94\u8be5\u8fd4\u56de\u4e00\u4e2a\u53ef\u8fed\u4ee3\u5bf9\u8c61\uff0c\u7136\u540e\u4f7f\u7528let\u5173\u952e\u5b57\u6765\u5b9a\u4e49\u4e00\u4e2a\u5faa\u73af\u53d8\u91cf\uff0c\u8be5\u53d8\u91cf\u5c06\u4f9d\u6b21\u8d4b\u503c\u4e3a\u53ef\u8fed\u4ee3\u5bf9\u8c61\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\uff0c\u6700\u540e\u6211\u4eec\u53ef\u4ee5\u5728\u6a21\u677f\u4e2d\u4f7f\u7528\u8be5\u53d8\u91cf\u6765\u751f\u6210\u591a\u4e2a\u5143\u7d20\u6216\u5b50\u7ec4\u4ef6\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>&lt;div *ngFor=\"let item of map | keyvalue\"&gt;{{ item.key }}: {{ item.value }}&lt;\/div&gt;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u6839\u636emap\u5bf9\u8c61\u4e2d\u7684\u952e\u503c\u5bf9\u6765\u751f\u6210\u591a\u4e2adiv\u5143\u7d20\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>ngForTrackBy\uff1a\u5728\u4f7f\u7528ngFor\u6216ngForOf\u65f6\uff0cAngular\u4f1a\u5bf9\u96c6\u5408\u6216\u6570\u7ec4\u8fdb\u884c\u904d\u5386\uff0c\u5e76\u751f\u6210\u76f8\u5e94\u7684\u5143\u7d20\u6216\u5b50\u7ec4\u4ef6\uff0c\u4f46\u5982\u679c\u96c6\u5408\u6216\u6570\u7ec4\u53d1\u751f\u4e86\u53d8\u5316\uff0cAngular\u53ef\u80fd\u4f1a\u9500\u6bc1\u5e76\u91cd\u65b0\u521b\u5efa\u6240\u6709\u7684\u5143\u7d20\u6216\u5b50\u7ec4\u4ef6\uff0c\u8fd9\u4f1a\u5bfc\u81f4\u6027\u80fd\u95ee\u9898\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528ngForTrackBy\u6307\u4ee4\u6765\u8ddf\u8e2a\u96c6\u5408\u6216\u6570\u7ec4\u4e2d\u6bcf\u4e2a\u5143\u7d20\u7684\u6807\u8bc6\uff0c\u5f53\u96c6\u5408\u6216\u6570\u7ec4\u53d1\u751f\u53d8\u5316\u65f6\uff0cAngular\u53ea\u4f1a\u9500\u6bc1\u548c\u91cd\u65b0\u521b\u5efa\u53d1\u751f\u53d8\u5316\u7684\u5143\u7d20\u6216\u5b50\u7ec4\u4ef6\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">phpCopy code<code>&lt;div *ngFor=\"let item of items; trackBy: trackByFn\"&gt;{{ item }}&lt;\/div&gt;\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u4f7f\u7528trackByFn\u51fd\u6570\u6765\u8ddf\u8e2a\u6bcf\u4e2a\u5143\u7d20\u7684\u6807\u8bc6\u3002<\/p>\n\n\n\n<p>\u901a\u8fc7\u5faa\u73af\u8868\u8fbe\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u5728Angular\u4e2d\u975e\u5e38\u65b9\u4fbf\u5730\u904d\u5386\u96c6\u5408\u6216\u6570\u7ec4\uff0c\u5e76\u751f\u6210\u591a\u4e2a\u5143\u7d20\u6216\u5b50\u7ec4\u4ef6\uff0c\u8ba9\u6211\u4eec\u7684\u5e94\u7528\u7a0b\u5e8f\u66f4\u52a0\u7075\u6d3b\u548c\u53ef\u7ef4\u62a4\u3002\u540c\u65f6\uff0c\u4f7f\u7528ngForTrackBy\u6307\u4ee4\u53ef\u4ee5\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/edu.ujhb.org\/?p=809\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caAngular\u6307\u4ee4<\/p>\n\n\n\n<p>\u5728Angular\u4e2d\uff0c\u6307\u4ee4\u662f\u4e00\u79cd\u7528\u4e8e\u6269\u5c55HTML\u8bed\u6cd5\u7684\u7279\u6b8a\u5c5e\u6027\uff0c\u5b83\u53ef\u4ee5\u7528\u6765\u6dfb\u52a0\u884c\u4e3a\u3001\u4fee\u6539\u5916\u89c2\u6216\u6539\u53d8\u5143\u7d20\u7684\u7ed3\u6784\u3002\u6307\u4ee4\u5206\u4e3a\u4e09\u7c7b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u7ec4\u4ef6\u6307\u4ee4\uff1a\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u6307\u4ee4\uff0c\u5b83\u5c06\u4e00\u4e2a\u7ec4\u4ef6\u7c7b\u4e0e\u4e00\u4e2a\u6a21\u677f\u5173\u8054\u8d77\u6765\uff0c\u5e76\u53ef\u4ee5\u5728\u5e94\u7528\u4e2d\u521b\u5efa\u53ef\u590d\u7528\u7684UI\u7ec4\u4ef6\u3002\u7ec4\u4ef6\u6307\u4ee4\u662fAngular\u4e2d\u6700\u57fa\u7840\u548c\u6700\u91cd\u8981\u7684\u6307\u4ee4\uff0c\u6bcf\u4e2a\u7ec4\u4ef6\u90fd\u662f\u4e00\u4e2a\u6307\u4ee4\u3002\u7ec4\u4ef6\u6307\u4ee4\u53ef\u4ee5\u5305\u542b\u5c5e\u6027\u3001\u65b9\u6cd5\u548c\u4e8b\u4ef6\uff0c\u4ee5\u4fbf\u4e0e\u5176\u4ed6\u7ec4\u4ef6\u8fdb\u884c\u901a\u4fe1\u548c\u4ea4\u4e92\u3002<\/li>\n\n\n\n<li>\u7ed3\u6784\u6307\u4ee4\uff1a\u662f\u4e00\u79cd\u53ef\u4ee5\u4fee\u6539DOM\u7ed3\u6784\u7684\u6307\u4ee4\uff0c\u5b83\u4eec\u53ef\u4ee5\u6dfb\u52a0\u3001\u5220\u9664\u6216\u66ff\u6362HTML\u5143\u7d20\uff0c\u4ee5\u53ca\u6839\u636e\u6761\u4ef6\u52a8\u6001\u5730\u63d2\u5165\u548c\u79fb\u9664\u5143\u7d20\u3002\u7ed3\u6784\u6307\u4ee4\u5206\u4e3a\u4e09\u79cd\u7c7b\u578b\uff1angIf\u3001ngSwitch\u548cngFor\uff0c\u5b83\u4eec\u5206\u522b\u7528\u4e8e\u6761\u4ef6\u6e32\u67d3\u3001\u5207\u6362\u548c\u5faa\u73af\u6e32\u67d3\u3002<\/li>\n\n\n\n<li>\u5c5e\u6027\u6307\u4ee4\uff1a\u662f\u4e00\u79cd\u53ef\u4ee5\u6539\u53d8HTML\u5143\u7d20\u5c5e\u6027\u7684\u6307\u4ee4\uff0c\u5b83\u4eec\u53ef\u4ee5\u4fee\u6539\u5143\u7d20\u7684\u5c5e\u6027\u3001\u6837\u5f0f\u3001\u7c7b\u7b49\uff0c\u4ee5\u53ca\u6dfb\u52a0\u81ea\u5b9a\u4e49\u7684\u884c\u4e3a\u548c\u903b\u8f91\u3002\u5c5e\u6027\u6307\u4ee4\u53ef\u4ee5\u63a5\u6536\u8f93\u5165\u503c\u548c\u4e8b\u4ef6\uff0c\u5e76\u6839\u636e\u8fd9\u4e9b\u503c\u548c\u4e8b\u4ef6\u6765\u4fee\u6539\u5143\u7d20\u7684\u5c5e\u6027\u6216\u884c\u4e3a\u3002\u5e38\u89c1\u7684\u5c5e\u6027\u6307\u4ee4\u5305\u62ecngClass\u3001ngStyle\u3001ngModel\u7b49\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u6307\u4ee4\u53ef\u4ee5\u4f5c\u7528\u4e8eHTML\u5143\u7d20\u3001\u7ec4\u4ef6\u6216\u6a21\u677f\uff0c\u5b83\u4eec\u901a\u5e38\u4ee5\u4e00\u4e2a\u524d\u7f00\u4f5c\u4e3a\u6807\u8bc6\u7b26\uff0c\u5e76\u5728\u540e\u9762\u52a0\u4e0a\u4e00\u4e2a\u9a7c\u5cf0\u5f0f\u7684\u540d\u79f0\uff0c\u4f8b\u5982ngIf\u3001ngClass\u3001appMyDirective\u7b49\u3002\u5728\u4f7f\u7528\u6307\u4ee4\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5c5e\u6027\u7ed1\u5b9a\u3001\u4e8b\u4ef6\u7ed1\u5b9a\u6216\u53cc\u5411\u7ed1\u5b9a\u6765\u4e0e\u6307\u4ee4\u8fdb\u884c\u4ea4\u4e92\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">phpCopy code<code>&lt;my-component [myProp]=\"myValue\" (myEvent)=\"handleEvent()\"&gt;&lt;\/my-component&gt;\n&lt;div [ngClass]=\"{'active': isActive, 'disabled': isDisabled}\"&gt;...&lt;\/div&gt;\n&lt;input [(ngModel)]=\"name\"&gt;\n<\/code><\/pre>\n\n\n\n<p>\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0cmy-component\u662f\u4e00\u4e2a\u7ec4\u4ef6\u6307\u4ee4\uff0c[myProp]\u548c(myEvent)\u662f\u5c5e\u6027\u548c\u4e8b\u4ef6\u7ed1\u5b9a\uff0cngClass\u662f\u4e00\u4e2a\u5c5e\u6027\u6307\u4ee4\uff0c[(ngModel)]\u662f\u4e00\u4e2a\u53cc\u5411\u7ed1\u5b9a\u3002<\/p>\n\n\n\n<p>\u901a\u8fc7\u4f7f\u7528\u6307\u4ee4\uff0c\u6211\u4eec\u53ef\u4ee5\u8f7b\u677e\u6269\u5c55HTML\u8bed\u6cd5\uff0c\u5e76\u4e3a\u5e94\u7528\u7a0b\u5e8f\u6dfb\u52a0\u590d\u6742\u7684\u884c\u4e3a\u548c\u903b\u8f91\u3002\u540c\u65f6\uff0cAngular\u6846\u67b6\u672c\u8eab\u4e5f\u63d0\u4f9b\u4e86\u4e00\u4e9b\u5e38\u7528\u7684\u6307\u4ee4\uff0c\u4f8b\u5982ngIf\u3001ngFor\u3001ngClass\u3001ngStyle\u7b49\uff0c\u4f7f\u6211\u4eec\u7684\u5f00\u53d1\u5de5\u4f5c\u66f4\u52a0\u9ad8\u6548\u548c\u65b9\u4fbf\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/edu.ujhb.org\/?p=809\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caAngular\u7684\u670d\u52a1\u548c\u4f9d\u8d56\u6ce8\u5165<\/p>\n\n\n\n<p>\u5728Angular\u4e2d\uff0c\u670d\u52a1\u662f\u4e00\u4e2a\u53ef\u91cd\u7528\u7684\u4ee3\u7801\u5355\u5143\uff0c\u7528\u4e8e\u5c01\u88c5\u4e1a\u52a1\u903b\u8f91\u3001\u6570\u636e\u8bbf\u95ee\u548c\u5176\u4ed6\u975e\u89c6\u56fe\u76f8\u5173\u7684\u529f\u80fd\u3002\u670d\u52a1\u901a\u5e38\u4e0d\u76f4\u63a5\u4e0e\u89c6\u56fe\u4ea4\u4e92\uff0c\u800c\u662f\u88ab\u7ec4\u4ef6\u548c\u5176\u4ed6\u670d\u52a1\u8c03\u7528\u3002\u5728Angular\u4e2d\uff0c\u670d\u52a1\u662f\u4e00\u4e2a\u666e\u901a\u7684Typescript\u7c7b\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u5176\u4e2d\u5b9a\u4e49\u5c5e\u6027\u3001\u65b9\u6cd5\u548c\u4e8b\u4ef6\uff0c\u4ee5\u4fbf\u5b9e\u73b0\u4e1a\u52a1\u903b\u8f91\u3002<\/p>\n\n\n\n<p>\u4f9d\u8d56\u6ce8\u5165\uff08Dependency Injection\uff0cDI\uff09\u662fAngular\u6846\u67b6\u4e2d\u7684\u4e00\u9879\u6838\u5fc3\u7279\u6027\uff0c\u5b83\u7528\u4e8e\u7ba1\u7406\u7ec4\u4ef6\u548c\u670d\u52a1\u4e4b\u95f4\u7684\u4f9d\u8d56\u5173\u7cfb\u3002\u4f9d\u8d56\u6ce8\u5165\u7684\u57fa\u672c\u601d\u60f3\u662f\uff0c\u901a\u8fc7\u6784\u9020\u51fd\u6570\u6216\u5c5e\u6027\u6ce8\u5165\u7684\u65b9\u5f0f\uff0c\u5c06\u4f9d\u8d56\u7684\u5bf9\u8c61\u6ce8\u5165\u5230\u7ec4\u4ef6\u6216\u670d\u52a1\u4e2d\uff0c\u4ece\u800c\u5b9e\u73b0\u89e3\u8026\u548c\u53ef\u91cd\u7528\u6027\u3002\u901a\u8fc7\u4f7f\u7528\u4f9d\u8d56\u6ce8\u5165\uff0c\u6211\u4eec\u53ef\u4ee5\u907f\u514d\u786c\u7f16\u7801\u4f9d\u8d56\u5173\u7cfb\uff0c\u4ece\u800c\u4f7f\u4ee3\u7801\u66f4\u52a0\u7075\u6d3b\u548c\u53ef\u6d4b\u8bd5\u3002<\/p>\n\n\n\n<p>\u5728Angular\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u6ce8\u5165\u5668\uff08Injector\uff09\u6765\u5b9e\u73b0\u4f9d\u8d56\u6ce8\u5165\u3002\u6ce8\u5165\u5668\u662f\u4e00\u4e2a\u5c42\u6b21\u5316\u7ed3\u6784\u7684\u5bf9\u8c61\uff0c\u5b83\u8d1f\u8d23\u521b\u5efa\u548c\u7ba1\u7406\u670d\u52a1\u5b9e\u4f8b\uff0c\u5e76\u6839\u636e\u4f9d\u8d56\u5173\u7cfb\u81ea\u52a8\u6ce8\u5165\u6240\u9700\u7684\u4f9d\u8d56\u3002\u5728Angular\u4e2d\uff0c\u6ce8\u5165\u5668\u901a\u5e38\u7531\u6839\u6ce8\u5165\u5668\u548c\u5b50\u6ce8\u5165\u5668\u7ec4\u6210\uff0c\u6839\u6ce8\u5165\u5668\u662f\u6574\u4e2a\u5e94\u7528\u7a0b\u5e8f\u5171\u4eab\u7684\uff0c\u800c\u6bcf\u4e2a\u7ec4\u4ef6\u548c\u670d\u52a1\u90fd\u53ef\u4ee5\u62e5\u6709\u81ea\u5df1\u7684\u5b50\u6ce8\u5165\u5668\u3002<\/p>\n\n\n\n<p>\u4e3a\u4e86\u5728\u7ec4\u4ef6\u6216\u670d\u52a1\u4e2d\u4f7f\u7528\u4f9d\u8d56\u6ce8\u5165\uff0c\u6211\u4eec\u9700\u8981\u5148\u5728\u6ce8\u5165\u5668\u4e2d\u6ce8\u518c\u8be5\u4f9d\u8d56\u7684\u63d0\u4f9b\u8005\u3002\u63d0\u4f9b\u8005\u901a\u5e38\u662f\u4e00\u4e2a\u670d\u52a1\u7c7b\u6216\u4e00\u4e2a\u5de5\u5382\u51fd\u6570\uff0c\u7528\u4e8e\u521b\u5efa\u4f9d\u8d56\u7684\u5b9e\u4f8b\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u63d0\u4f9b\u8005\u5bf9\u8c61\u6765\u6307\u5b9a\u4f9d\u8d56\u7684\u7c7b\u3001\u5de5\u5382\u51fd\u6570\u3001\u503c\u6216\u522b\u540d\uff0c\u4ece\u800c\u544a\u8bc9\u6ce8\u5165\u5668\u5982\u4f55\u521b\u5efa\u8be5\u4f9d\u8d56\u7684\u5b9e\u4f8b\u3002<\/p>\n\n\n\n<p>\u5728\u7ec4\u4ef6\u6216\u670d\u52a1\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u6784\u9020\u51fd\u6570\u6216\u5c5e\u6027\u6ce8\u5165\u7684\u65b9\u5f0f\u6765\u58f0\u660e\u4f9d\u8d56\u5173\u7cfb\u3002\u5f53\u7ec4\u4ef6\u6216\u670d\u52a1\u88ab\u521b\u5efa\u65f6\uff0cAngular\u4f1a\u81ea\u52a8\u4ece\u6ce8\u5165\u5668\u4e2d\u83b7\u53d6\u6240\u9700\u7684\u4f9d\u8d56\uff0c\u5e76\u5c06\u5176\u6ce8\u5165\u5230\u7ec4\u4ef6\u6216\u670d\u52a1\u4e2d\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u6f14\u793a\u4e86\u5982\u4f55\u5728\u7ec4\u4ef6\u4e2d\u4f7f\u7528\u4f9d\u8d56\u6ce8\u5165\u6765\u8bbf\u95ee\u4e00\u4e2a\u670d\u52a1\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">typescriptCopy code<code>import { Component } from '@angular\/core';\nimport { MyService } from '.\/my.service';\n\n@Component({\n  selector: 'my-component',\n  template: `&lt;div&gt;{{ message }}&lt;\/div&gt;`\n})\nexport class MyComponent {\n  message: string;\n\n  constructor(private myService: MyService) {\n    this.message = myService.getMessage();\n  }\n}\n<\/code><\/pre>\n\n\n\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0cMyService\u662f\u4e00\u4e2a\u670d\u52a1\u7c7b\uff0cMyComponent\u662f\u4e00\u4e2a\u7ec4\u4ef6\u7c7b\u3002\u5728MyComponent\u7684\u6784\u9020\u51fd\u6570\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7\u5c06MyService\u6ce8\u5165\u5230\u79c1\u6709\u5c5e\u6027myService\u4e2d\u6765\u58f0\u660e\u4f9d\u8d56\u5173\u7cfb\u3002\u7136\u540e\u6211\u4eec\u53ef\u4ee5\u5728\u7ec4\u4ef6\u7684message\u5c5e\u6027\u4e2d\u4f7f\u7528\u8be5\u670d\u52a1\u7684\u65b9\u6cd5\u6765\u83b7\u53d6\u6d88\u606f\uff0c\u5e76\u5728\u6a21\u677f\u4e2d\u663e\u793a\u8be5\u6d88\u606f\u3002<\/p>\n\n\n\n<p>\u901a\u8fc7\u4f7f\u7528\u670d\u52a1\u548c\u4f9d\u8d56\u6ce8\u5165\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9e\u73b0\u53ef\u91cd\u7528\u3001\u53ef\u6d4b\u8bd5\u548c\u677e\u6563\u8026\u5408\u7684\u4ee3\u7801\uff0c\u4ece\u800c\u63d0\u9ad8\u5e94\u7528<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/edu.ujhb.org\/?p=809\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caAngular\u8def\u7531\u548c\u5bfc\u822a<\/p>\n\n\n\n<p>\u5728Angular\u4e2d\uff0c\u8def\u7531\u662f\u4e00\u4e2a\u7528\u4e8e\u7ba1\u7406\u5e94\u7528\u7a0b\u5e8f\u5bfc\u822a\u7684\u673a\u5236\uff0c\u5b83\u5141\u8bb8\u6211\u4eec\u6839\u636eURL\u8def\u5f84\u6765\u5207\u6362\u7ec4\u4ef6\u6216\u89c6\u56fe\uff0c\u5e76\u652f\u6301\u5386\u53f2\u8bb0\u5f55\u3001\u53c2\u6570\u4f20\u9012\u548c\u5d4c\u5957\u8def\u7531\u7b49\u529f\u80fd\u3002Angular\u7684\u8def\u7531\u6a21\u5757\u63d0\u4f9b\u4e86\u4e00\u7ec4API\u548c\u6307\u4ee4\uff0c\u7528\u4e8e\u5b9a\u4e49\u548c\u63a7\u5236\u5e94\u7528\u7a0b\u5e8f\u7684\u8def\u7531\u3002<\/p>\n\n\n\n<p>Angular\u7684\u8def\u7531\u6a21\u5757\u57fa\u4e8e\u6807\u51c6\u7684Web API\u2014\u2014\u6d4f\u89c8\u5668\u7684Location API\uff0c\u5b83\u4f7f\u7528URL\u6765\u8868\u793a\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u5404\u4e2a\u89c6\u56fe\u548c\u72b6\u6001\u3002\u901a\u8fc7\u5728URL\u4e2d\u6dfb\u52a0\u8def\u7531\u53c2\u6570\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9e\u73b0\u9875\u9762\u4e4b\u95f4\u7684\u53c2\u6570\u4f20\u9012\u548c\u72b6\u6001\u7ba1\u7406\u3002<\/p>\n\n\n\n<p>\u5728Angular\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528RouterModule\u6765\u914d\u7f6e\u8def\u7531\u6a21\u5757\u3002RouterModule\u63d0\u4f9b\u4e86\u4e00\u7ec4API\uff0c\u7528\u4e8e\u5b9a\u4e49\u8def\u7531\u89c4\u5219\u3001\u5bfc\u822a\u5230\u4e0d\u540c\u7684\u7ec4\u4ef6\u548c\u63a7\u5236\u8def\u7531\u7684\u751f\u547d\u5468\u671f\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684RouterModule\u6307\u4ee4\u548cAPI\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>RouterModule.forRoot(routes)\uff1a\u7528\u4e8e\u914d\u7f6e\u6839\u8def\u7531\uff0c\u5176\u4e2droutes\u662f\u4e00\u4e2a\u5305\u542b\u8def\u7531\u5b9a\u4e49\u7684\u6570\u7ec4\u3002<\/li>\n\n\n\n<li>RouterModule.forChild(routes)\uff1a\u7528\u4e8e\u914d\u7f6e\u5b50\u8def\u7531\uff0c\u5176\u4e2droutes\u662f\u4e00\u4e2a\u5305\u542b\u8def\u7531\u5b9a\u4e49\u7684\u6570\u7ec4\u3002<\/li>\n\n\n\n<li>routerLink\u6307\u4ee4\uff1a\u7528\u4e8e\u5728\u6a21\u677f\u4e2d\u5b9a\u4e49\u94fe\u63a5\uff0c\u53ef\u4ee5\u6839\u636e\u8def\u7531\u89c4\u5219\u81ea\u52a8\u8ba1\u7b97\u51faURL\u8def\u5f84\u3002<\/li>\n\n\n\n<li>routerLinkActive\u6307\u4ee4\uff1a\u7528\u4e8e\u5728\u6a21\u677f\u4e2d\u6307\u5b9a\u5f53\u524d\u6fc0\u6d3b\u7684\u94fe\u63a5\uff0c\u901a\u5e38\u4e0erouterLink\u4e00\u8d77\u4f7f\u7528\u3002<\/li>\n\n\n\n<li>ActivatedRoute API\uff1a\u7528\u4e8e\u83b7\u53d6\u5f53\u524d\u8def\u7531\u7684\u4fe1\u606f\uff0c\u4f8b\u5982\u53c2\u6570\u3001\u67e5\u8be2\u5b57\u7b26\u4e32\u548c\u8def\u7531\u5c42\u6b21\u7ed3\u6784\u7b49\u3002<\/li>\n\n\n\n<li>Router API\uff1a\u7528\u4e8e\u63a7\u5236\u8def\u7531\u7684\u5bfc\u822a\u548c\u751f\u547d\u5468\u671f\uff0c\u4f8b\u5982\u5bfc\u822a\u5230\u5176\u4ed6\u8def\u7531\u3001\u8ba2\u9605\u8def\u7531\u53d8\u5316\u4e8b\u4ef6\u548c\u53d6\u6d88\u8def\u7531\u8ba2\u9605\u7b49\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u5728Angular\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u8def\u7531\u5b88\u536b\uff08Route Guards\uff09\u6765\u63a7\u5236\u8def\u7531\u7684\u8bbf\u95ee\u548c\u6743\u9650\u3002\u8def\u7531\u5b88\u536b\u662f\u4e00\u4e2a\u53ef\u4ee5\u5728\u8def\u7531\u5bfc\u822a\u8fc7\u7a0b\u4e2d\u62e6\u622a\u548c\u5904\u7406\u8def\u7531\u8bf7\u6c42\u7684\u673a\u5236\uff0c\u53ef\u4ee5\u7528\u4e8e\u5b9e\u73b0\u6743\u9650\u63a7\u5236\u3001\u767b\u5f55\u9a8c\u8bc1\u3001\u6570\u636e\u9884\u53d6\u7b49\u529f\u80fd\u3002Angular\u63d0\u4f9b\u4e86\u4e09\u79cd\u7c7b\u578b\u7684\u8def\u7531\u5b88\u536b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>CanActivate\uff1a\u7528\u4e8e\u63a7\u5236\u662f\u5426\u5141\u8bb8\u8bbf\u95ee\u8def\u7531\u3002<\/li>\n\n\n\n<li>CanActivateChild\uff1a\u7528\u4e8e\u63a7\u5236\u662f\u5426\u5141\u8bb8\u8bbf\u95ee\u5b50\u8def\u7531\u3002<\/li>\n\n\n\n<li>Resolve\uff1a\u7528\u4e8e\u5728\u8def\u7531\u5bfc\u822a\u524d\u83b7\u53d6\u6570\u636e\u5e76\u5c06\u5176\u6ce8\u5165\u5230\u8def\u7531\u7ec4\u4ef6\u4e2d\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u901a\u8fc7\u4f7f\u7528\u8def\u7531\u548c\u5bfc\u822a\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9e\u73b0\u7075\u6d3b\u548c\u53ef\u6269\u5c55\u7684\u5e94\u7528\u7a0b\u5e8f\u5bfc\u822a\u548c\u72b6\u6001\u7ba1\u7406\uff0c\u4ece\u800c\u63d0\u9ad8\u7528\u6237\u4f53\u9a8c\u548c\u5f00\u53d1\u6548\u7387\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/edu.ujhb.org\/?p=809\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91caAngular\u8868\u5355<\/p>\n\n\n\n<p>\u5728Angular\u4e2d\uff0c\u8868\u5355\u662f\u7528\u4e8e\u6536\u96c6\u548c\u9a8c\u8bc1\u7528\u6237\u8f93\u5165\u7684\u5173\u952e\u7ec4\u4ef6\u4e4b\u4e00\u3002Angular\u8868\u5355\u5e93\u63d0\u4f9b\u4e86\u4e00\u7ec4API\u548c\u6307\u4ee4\uff0c\u7528\u4e8e\u521b\u5efa\u548c\u7ba1\u7406\u8868\u5355\uff0c\u5904\u7406\u7528\u6237\u8f93\u5165\u548c\u8868\u5355\u9a8c\u8bc1\u3002<\/p>\n\n\n\n<p>Angular\u8868\u5355\u5206\u4e3a\u4e24\u79cd\u7c7b\u578b\uff1a\u54cd\u5e94\u5f0f\u8868\u5355\u548c\u6a21\u677f\u9a71\u52a8\u8868\u5355\u3002<\/p>\n\n\n\n<p>\u54cd\u5e94\u5f0f\u8868\u5355\u662f\u57fa\u4e8eRxJS\u7684Observable\u6d41\u5b9e\u73b0\u7684\uff0c\u5b83\u5141\u8bb8\u6211\u4eec\u4ee5\u54cd\u5e94\u5f0f\u7684\u65b9\u5f0f\u5904\u7406\u8868\u5355\u6570\u636e\uff0c\u4f8b\u5982\u81ea\u5b9a\u4e49\u9a8c\u8bc1\u5668\u3001\u52a8\u6001\u8868\u5355\u63a7\u5236\u3001\u8868\u5355\u5d4c\u5957\u7b49\u3002\u54cd\u5e94\u5f0f\u8868\u5355\u901a\u8fc7FormGroup\u3001FormControl\u548cFormArray\u7b49\u7ec4\u4ef6\u6765\u7ba1\u7406\u8868\u5355\u63a7\u4ef6\u548c\u9a8c\u8bc1\u89c4\u5219\uff0c\u53ef\u4ee5\u5728\u7ec4\u4ef6\u4ee3\u7801\u4e2d\u8fdb\u884c\u914d\u7f6e\u548c\u63a7\u5236\u3002<\/p>\n\n\n\n<p>\u6a21\u677f\u9a71\u52a8\u8868\u5355\u662f\u57fa\u4e8e\u6a21\u677f\u6307\u4ee4\u7684\u65b9\u5f0f\u5b9e\u73b0\u7684\uff0c\u5b83\u5141\u8bb8\u6211\u4eec\u4f7f\u7528\u6a21\u677f\u6307\u4ee4\u6765\u5b9a\u4e49\u8868\u5355\u63a7\u4ef6\u548c\u9a8c\u8bc1\u89c4\u5219\uff0c\u5e76\u81ea\u52a8\u751f\u6210\u8868\u5355\u6a21\u578b\u548c\u9a8c\u8bc1\u5668\u3002\u6a21\u677f\u9a71\u52a8\u8868\u5355\u901a\u5e38\u7528\u4e8e\u7b80\u5355\u7684\u8868\u5355\u573a\u666f\uff0c\u4f8b\u5982\u767b\u5f55\u8868\u5355\u3001\u6ce8\u518c\u8868\u5355\u7b49\u3002<\/p>\n\n\n\n<p>Angular\u8868\u5355\u5e93\u63d0\u4f9b\u4e86\u4e00\u7ec4\u5e38\u7528\u7684\u6307\u4ee4\u548c\u7ec4\u4ef6\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>FormsModule\u548cReactiveFormsModule\uff1a\u7528\u4e8e\u5f15\u5165\u8868\u5355\u6a21\u5757\uff0c\u5e76\u63d0\u4f9b\u4e00\u7ec4\u8868\u5355\u76f8\u5173\u7684\u6307\u4ee4\u548c\u670d\u52a1\u3002<\/li>\n\n\n\n<li>ngForm\u6307\u4ee4\uff1a\u7528\u4e8e\u521b\u5efa\u4e00\u4e2a\u8868\u5355\uff0c\u5e76\u5c06\u8868\u5355\u63a7\u4ef6\u548c\u9a8c\u8bc1\u89c4\u5219\u6dfb\u52a0\u5230\u8868\u5355\u6a21\u578b\u4e2d\u3002<\/li>\n\n\n\n<li>ngModel\u6307\u4ee4\uff1a\u7528\u4e8e\u5c06\u8868\u5355\u63a7\u4ef6\u7684\u503c\u7ed1\u5b9a\u5230\u6a21\u677f\u53d8\u91cf\u6216\u7ec4\u4ef6\u5c5e\u6027\u4e2d\uff0c\u5e76\u652f\u6301\u53cc\u5411\u6570\u636e\u7ed1\u5b9a\u3002<\/li>\n\n\n\n<li>Validators\u6a21\u5757\uff1a\u7528\u4e8e\u5b9a\u4e49\u5e38\u7528\u7684\u8868\u5355\u9a8c\u8bc1\u5668\uff0c\u4f8b\u5982\u5fc5\u586b\u9879\u3001\u6700\u5927\u957f\u5ea6\u3001\u6700\u5c0f\u503c\u7b49\u3002<\/li>\n\n\n\n<li>FormBuilder\u670d\u52a1\uff1a\u7528\u4e8e\u4ee5\u54cd\u5e94\u5f0f\u7684\u65b9\u5f0f\u521b\u5efa\u8868\u5355\u6a21\u578b\u548c\u8868\u5355\u63a7\u4ef6\uff0c\u7b80\u5316\u8868\u5355\u7684\u914d\u7f6e\u548c\u63a7\u5236\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u9664\u4e86\u4ee5\u4e0a\u5e38\u7528\u7684\u6307\u4ee4\u548c\u7ec4\u4ef6\u5916\uff0cAngular\u8868\u5355\u5e93\u8fd8\u63d0\u4f9b\u4e86\u4e00\u4e9b\u9ad8\u7ea7\u529f\u80fd\u548c\u6280\u5de7\uff0c\u4f8b\u5982\u81ea\u5b9a\u4e49\u9a8c\u8bc1\u5668\u3001\u8868\u5355\u6570\u7ec4\u3001\u52a8\u6001\u8868\u5355\u63a7\u5236\u3001\u8868\u5355\u72b6\u6001\u7ba1\u7406\u7b49\u3002<\/p>\n\n\n\n<p>\u603b\u4e4b\uff0cAngular\u8868\u5355\u662f\u4e00\u4e2a\u5f3a\u5927\u548c\u7075\u6d3b\u7684\u7ec4\u4ef6\u5e93\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u6784\u5efa\u590d\u6742\u548c\u53ef\u9760\u7684\u8868\u5355\u573a\u666f\uff0c\u4ece\u800c\u63d0\u9ad8\u7528\u6237\u4f53\u9a8c\u548c\u6570\u636e\u8d28\u91cf\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/edu.ujhb.org\/?p=809\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>\u8bf7\u8be6\u7ec6\u89e3\u91ca\u5982\u4f55\u6784\u5efaAngular\u9879\u76ee<\/p>\n\n\n\n<p>\u8981\u6784\u5efaAngular\u9879\u76ee\uff0c\u9700\u8981\u9075\u5faa\u4ee5\u4e0b\u57fa\u672c\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5b89\u88c5Node.js\u548cnpm<\/li>\n<\/ol>\n\n\n\n<p>\u9996\u5148\uff0c\u9700\u8981\u5728\u672c\u5730\u5b89\u88c5Node.js\u548cnpm\uff08Node.js\u7684\u5305\u7ba1\u7406\u5668\uff09\uff0c\u8fd9\u662fAngular\u9879\u76ee\u7684\u8fd0\u884c\u73af\u5883\u548c\u4f9d\u8d56\u7ba1\u7406\u5de5\u5177\u3002\u53ef\u4ee5\u5728Node.js\u5b98\u7f51\u4e0a\u4e0b\u8f7d\u548c\u5b89\u88c5\u6700\u65b0\u7248\u672c\u7684Node.js\u548cnpm\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>\u5b89\u88c5Angular CLI<\/li>\n<\/ol>\n\n\n\n<p>Angular CLI\u662f\u4e00\u4e2a\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u7528\u4e8e\u5feb\u901f\u521b\u5efa\u3001\u6784\u5efa\u548c\u6d4b\u8bd5Angular\u5e94\u7528\u7a0b\u5e8f\u3002\u53ef\u4ee5\u901a\u8fc7npm\u5b89\u88c5Angular CLI\uff0c\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">bashCopy code<code>npm install -g @angular\/cli\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>Create a new project<\/li>\n<\/ol>\n\n\n\n<p>After installing the Angular CLI, you can create a new Angular project using the command line. Go to the command line interface and use the following command:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">arduinoCopy code<code>ng new my-app\n<\/code><\/pre>\n\n\n\n<p>This will create a new Angular project called &#8220;my-app&#8221; and install all the required dependencies.<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>Run the project<\/li>\n<\/ol>\n\n\n\n<p>After the project is created, you can run the project locally using the following command:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">perlCopy code<code>cd my-app\nng serve --open\n<\/code><\/pre>\n\n\n\n<p>This will start the local server and automatically open the default browser to showcase the application.<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\">\n<li>Development project<\/li>\n<\/ol>\n\n\n\n<p>After you run the project, you can start writing and modifying code. In Angular, the main structure of a project includes components, services, modules, and routing. These components can be generated using Angular CLI commands, such as:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">perlCopy code<code>ng generate component my-component\n<\/code><\/pre>\n\n\n\n<p>This will create a new component named &#8220;my-component&#8221; in the project and generate the required files and code.<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"6\">\n<li>Build the project<\/li>\n<\/ol>\n\n\n\n<p>After development is complete, you can use the following command to build the application to a production version:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>ng build --prod\n<\/code><\/pre>\n\n\n\n<p>This results in a compressed and optimized application that can be deployed to a server or other platform.<\/p>\n\n\n\n<p>In summary, building an Angular project requires following a series of basic steps, including installing a runtime environment, creating a new project, running the project, developing code, building the application, etc. The Angular CLI provides many handy commands and tools that help us quickly build and manage Angular applications.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/edu.ujhb.org\/?p=809\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>Please explain in detail the use of the Angular Material UI component library<\/p>\n\n\n\n<p>Angular Material is a Google Material Design-based UI component library that provides a range of reusable UI components and directives that can be used to quickly build modern web applications.<\/p>\n\n\n\n<p>To use Angular Material, you need to follow these steps:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Install Angular Material<\/li>\n<\/ol>\n\n\n\n<p>First, you need to install Angular Material and its Style Library (CSS) using npm:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">scssCopy code<code>npm install --save @angular\/material @angular\/cdk @angular\/animations\nnpm install --save @angular\/material-moment-adapter @angular\/flex-layout @angular\/forms\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>Import and configure the Material module<\/li>\n<\/ol>\n\n\n\n<p>After installing Angular Material, you need to import and configure the Material module in your application. Add the following code to app.module.ts:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">typescriptCopy code<code>import { BrowserAnimationsModule } from '@angular\/platform-browser\/animations';\nimport { NgModule } from '@angular\/core';\nimport { FormsModule } from '@angular\/forms';\nimport { MatInputModule } from '@angular\/material\/input';\nimport { MatButtonModule } from '@angular\/material\/button';\n\n@NgModule({\n  declarations: [\n    \/\/ ...\n  ],\n  imports: [\n    BrowserAnimationsModule,\n    FormsModule,\n    MatInputModule,\n    MatButtonModule,\n    \/\/ ...\n  ],\n  providers: [],\n  bootstrap: [AppComponent]\n})\nexport class AppModule { }\n<\/code><\/pre>\n\n\n\n<p>Some commonly used Material components are used here, including Input, Button, etc., and more components can be added according to your needs.<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>Use the Material component<\/li>\n<\/ol>\n\n\n\n<p>After importing and configuring the Material module, you can use the Material component in your application. For example, add the following code .html app.component:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>&lt;mat-form-field&gt;\n  &lt;input matInput placeholder=\"\u8bf7\u8f93\u5165\u7528\u6237\u540d\"&gt;\n&lt;\/mat-form-field&gt;\n&lt;button mat-raised-button&gt;\u767b\u5f55&lt;\/button&gt;\n<\/code><\/pre>\n\n\n\n<p>This will create a simple form using the Input and Button components and beautify it with the Material style.<\/p>\n\n\n\n<p>In conclusion, using Angular Material can help us quickly create beautiful and feature-rich UI interfaces. The Material module needs to be installed, configured, and developed with the components and styles it provides. Material also offers many themes and customization options that can be adapted and expanded to suit your needs.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/edu.ujhb.org\/?p=809\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>Please explain in detail how to use Angular Firebase for backend integration<\/p>\n\n\n\n<p>Angular Firebase is a back-end service provided by Google, which provides powerful cloud storage and real-time database capabilities, making it easier for developers to implement the back-end functions of applications.<\/p>\n\n\n\n<p>To use Angular Firebase for backend integration, the following steps are required:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Create a Firebase project<\/li>\n<\/ol>\n\n\n\n<p>First, you need to create a Firebase project on the Firebase console, which will provide the required API keys and other credentials. The Firebase console can be accessed through the following link:&nbsp;<a href=\"https:\/\/console.firebase.google.com\/%E3%80%82\">https:\/\/console.firebase.google.com\/.<\/a><\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>Integration of the Angular Firebase module<\/li>\n<\/ol>\n\n\n\n<p>After creating a Firebase project, you need to integrate the Firebase module in your Angular application. The Firebase module can be installed using the npm package manager:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sqlCopy code<code>npm install firebase @angular\/fire --save\n<\/code><\/pre>\n\n\n\n<p>Then import the Angular Firebase module in the app.module.ts file:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">typescriptCopy code<code>import { AngularFireModule } from '@angular\/fire';\nimport { AngularFirestoreModule } from '@angular\/fire\/firestore';\nimport { environment } from '..\/environments\/environment';\n\n@NgModule({\n  imports: [\n    AngularFireModule.initializeApp(environment.firebase),\n    AngularFirestoreModule,\n    \/\/ ...\n  ],\n  \/\/ ...\n})\nexport class AppModule { }\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u91cc\uff0c\u6211\u4eec\u4f7f\u7528\u4e86Angular Firebase\u6a21\u5757\u4e2d\u7684AngularFireModule\u548cAngularFirestoreModule\u6a21\u5757\uff0c\u5c06Firebase\u521d\u59cb\u5316\u548c\u5b9e\u65f6\u6570\u636e\u5e93\u5f15\u5165\u5e94\u7528\u7a0b\u5e8f\u4e2d\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>\u4f7f\u7528Angular Firebase<\/li>\n<\/ol>\n\n\n\n<p>\u5728\u96c6\u6210Firebase\u6a21\u5757\u540e\uff0c\u53ef\u4ee5\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d\u4f7f\u7528Firebase\u529f\u80fd\u3002\u4f8b\u5982\uff0c\u5728\u7ec4\u4ef6\u4e2d\u4f7f\u7528\u5b9e\u65f6\u6570\u636e\u5e93\uff0c\u53ef\u4ee5\u6267\u884c\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<p>\u5bfc\u5165Angular Fire\u6a21\u5757\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>import { AngularFirestore } from '@angular\/fire\/firestore';\n<\/code><\/pre>\n\n\n\n<p>\u5728\u7ec4\u4ef6\u4e2d\u6ce8\u5165AngularFirestore\u670d\u52a1\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">typescriptCopy code<code>constructor(private firestore: AngularFirestore) {}\n<\/code><\/pre>\n\n\n\n<p>\u4f7f\u7528AngularFirestore\u670d\u52a1\u8fdb\u884c\u5b9e\u65f6\u6570\u636e\u5e93\u64cd\u4f5c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">javascriptCopy code<code>this.firestore.collection('users').add({\n  name: 'John',\n  age: 30,\n  email: 'john@example.com'\n})\n.then(() =&gt; {\n  console.log('\u6dfb\u52a0\u7528\u6237\u6210\u529f\uff01');\n})\n.catch((error) =&gt; {\n  console.log('\u6dfb\u52a0\u7528\u6237\u5931\u8d25\uff1a', error);\n});\n<\/code><\/pre>\n\n\n\n<p>Here, we use the AngularFirestore service to create a collection called &#8220;users&#8221; and add a user document. It should be noted that we can also use other Firebase features such as authentication, storage, and cloud functions, among others.<\/p>\n\n\n\n<p>In summary, using Angular Firebase helps us easily implement the back-end functions of the application, including real-time database, authentication, and storage. You need to create a Firebase project first, integrate the Angular Firebase module, and then use the AngularFirestore service for real-time database operations. In addition, Firebase also provides a wealth of documentation and sample code for developers to refer to and learn.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/edu.ujhb.org\/?p=809\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>Please explain Angular performance optimization in detail<\/p>\n\n\n\n<p>Angular is a large JavaScript framework, and it may face some performance issues when applications become more complex. To ensure the performance of your application, you need to take some optimizations, such as:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Enable AOT compilation<\/li>\n<\/ol>\n\n\n\n<p>In a production environment, it is recommended to use Angular&#8217;s AOT compiler to compile applications. This can improve the performance of your application and improve load times. The way to use the AOT compiler is to use the \u2013aot flag when building the application, for example:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>ng build --prod --aot\n<\/code><\/pre>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li>Use lazy loading of modules<\/li>\n<\/ol>\n\n\n\n<p>Using lazy loading modules can improve application load times and improve performance. Lazy loading modules means loading modules when needed, rather than loading all modules when the application starts. To use lazy loading modules, you need to set the loadChildren property in the routing configuration, for example:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopy code<code>const routes: Routes = [\n  { path: '', redirectTo: 'home', pathMatch: 'full' },\n  { path: 'home', component: HomeComponent },\n  { path: 'about', loadChildren: '.\/about\/about.module#AboutModule' },\n  { path: '**', component: PageNotFoundComponent }\n];\n<\/code><\/pre>\n\n\n\n<p>Here, we set up a lazy loading module that dynamically loads the about module when the user accesses the \/about path.<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li>Use TrackBy to optimize ngFor loops<\/li>\n<\/ol>\n\n\n\n<p>When using the ngFor instruction loop to render large amounts of data, performance may be affected. Using the trackBy function optimizes ngFor loop performance. The trackBy function generates an identifier for each data item so that Angular can recognize changes to the data item and re-render them. For example:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">kotlinCopy code<code>@Component({\n  template: `\n    &lt;ul&gt;\n      &lt;li *ngFor=\"let item of items; trackBy: trackByFn\"&gt;{{ item }}&lt;\/li&gt;\n    &lt;\/ul&gt;\n  `\n})\nexport class MyComponent {\n  items = ['Apple', 'Banana', 'Cherry', 'Durian', 'Eggplant'];\n\n  trackByFn(index, item) {\n    return index;\n  }\n}\n<\/code><\/pre>\n\n\n\n<p>Here, we use the trackBy function, which returns the index of the data item as an identifier.<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\">\n<li>Use OnPush to change the detection policy<\/li>\n<\/ol>\n\n\n\n<p>Angular&#8217;s default change detection strategy is to detect all components and directives in the application every time. This can cause performance issues, especially as applications become more complex. Using the OnPush change detection policy can improve the performance of your application. The OnPush change detection policy determines when to re-render a component based on its input properties and event bindings. To use the OnPush change detection policy, you need to set the changeDetection property in the component metadata, for example:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">lessCopy code<code>@Component({\n  selector: 'app-my-component',\n  templateUrl: '.\/my-component.component.html',\n  styleUrls: ['.\/my-component.component.css'],\n  changeDetection: ChangeDetectionStrategy.OnPush\n})\nexport class MyComponent {\n \n<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/edu.ujhb.org\/?p=809\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>Please explain the Angular test in detail<\/p>\n\n\n\n<p>Testing in Angular is very important because it ensures the reliability and quality of the code. Angular provides a variety of testing tools and frameworks, including unit tests, integration tests, and end-to-end tests, to help developers verify the correctness of their code.<\/p>\n\n\n\n<p>Here are some detailed instructions on Angular testing:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Unit testing: Unit testing is a test method used to test a single module or component in an application. In Angular, unit tests are typically written using the Karma test runner and the Jasmine test framework. Karma can run tests in the browser, while Jasmine provides syntax and APIs for writing test cases.<\/li>\n\n\n\n<li>Integration tests: Integration tests are used to test the interaction between multiple components in an application. In Angular, integration tests are typically written and executed using the Protractor test framework. Protractor is an end-to-end testing framework that simulates user interaction with an application and verifies the application&#8217;s behavior.<\/li>\n\n\n\n<li>End-to-end testing: End-to-end testing is a test method used to test the entire application. In Angular, end-to-end tests are typically written and executed using Protractor.<\/li>\n\n\n\n<li>Testing with TestBed: Angular provides a testing tool called TestBed that you can use to create components and execute tests. TestBed provides a test environment that simulates Angular applications and allows developers to test components.<\/li>\n\n\n\n<li>Test coverage: Test coverage refers to the percentage of code paths of your application&#8217;s code during testing. In Angular, test coverage can be measured using the Karma Test Runner and the Istanbul Test Coverage tool.<\/li>\n\n\n\n<li>Testing with Mock Objects: Mock objects are test tools that simulate other components or services. In Angular, you can use mock objects to simulate HTTP requests or other dependencies to help test the behavior of a particular component or service.<\/li>\n<\/ol>\n\n\n\n<p>In summary, testing is an important part of ensuring application quality and reliability. In Angular, developers can use various testing tools and frameworks to test different parts of an application to ensure the proper functioning of the application and the quality of the code.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/edu.ujhb.org\/?p=809\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>Please explain the Angular deployment in detail<\/p>\n\n\n\n<p>After developing the Angular application, the next step is to deploy it to a web server for users to access. Here are the general steps for Angular application deployment:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Build the application: Before deployment, you need to use the Angular CLI to build the application into a deployable version. You can build by running commands in the terminal. Once the build is complete, the Angular CLI will generate a folder in the project root directory containing the deployable version.<code>ng build<\/code><code>dist<\/code><\/li>\n\n\n\n<li>Choose a web server: Various web servers can be used to deploy Angular applications, including Apache, Nginx, IIS, and more. The main considerations for choosing a server are the size of the application, the processing power required, and the budget.<\/li>\n\n\n\n<li>Upload the application to the server: Once you have chosen a web server, you need to upload the built application to the server. This can be done by using file transfer protocols such as FTP or SFTP.<\/li>\n\n\n\n<li>Configure the web server: The web server needs to be configured on the server so that it can properly serve the Angular application. This includes specifying the root directory of the application, enabling gzip compression, etc.<\/li>\n\n\n\n<li>Start the web server: Once configured, you can start the web server and access the application in your browser.<\/li>\n<\/ol>\n\n\n\n<p>In addition to the above steps, there are some other deployment considerations to be aware of, such as enabling HTTPS, configuring reverse proxies, and so on.<\/p>\n\n\n\n<p>In conclusion, deploying an Angular application to a web server is a necessary step in order to make it available to users. By following the steps and considerations above, you can ensure that your Angular application works properly on your web server.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/edu.ujhb.org\/?p=809\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>What are the great projects based on Angular on Github<\/p>\n\n\n\n<p>There are many great projects based on Angular on Github, and here are some of them worth mentioning:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Angular Material: Angular&#8217;s official UI component library, which provides rich UI components and styles, which can greatly simplify front-end development.<\/li>\n\n\n\n<li>ngx-admin: An open source admin panel that provides many common UI components and page layouts, and is easy to extend and customize.<\/li>\n\n\n\n<li>angular-electron: A tool for packaging Angular applications into Electron desktop applications that can easily convert existing Angular applications into desktop applications.<\/li>\n\n\n\n<li>angularfire: Firebase-based Angular library that provides many Angular services and directives for integration with Firebase.<\/li>\n\n\n\n<li>ngx-translate: A library for internationalization and localization in Angular applications that provides convenient translation and language switching capabilities.<\/li>\n\n\n\n<li>ng-zorro-antd: A library of Angular UI components based on Ant Design that provides many common UI components and styles that can greatly simplify front-end development.<\/li>\n<\/ol>\n\n\n\n<p>These projects are popular in the Angular community, and they not only provide useful features, but also follow best practices and design patterns that can serve as excellent resources for learning and reference.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/edu.ujhb.org\/?p=809\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/chat.openai.com\/_next\/image?url=https%3A%2F%2Flh3.googleusercontent.com%2Fa%2FAGNmyxbwVdnTP0E2eBqDrujRQjV-wFP12Thr4vFgysVv5A%3Ds96-c&amp;w=64&amp;q=75\" alt=\"gun tei\"\/><\/figure>\n\n\n\n<p>What tutorials and communities about Angular are available on Github<\/p>\n\n\n\n<p>Github is a very active social platform, and the Angular community also has a large number of tutorials and resources here. Here are some Github tutorials and communities about Angular:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Angular Official Documentation: Angular&#8217;s official documentation is one of the best resources for learning Angular, with very detailed and comprehensive tutorials and guides.<\/li>\n\n\n\n<li>Angular Learning Resources: This is a project that brings together a variety of learning resources about Angular, including books, videos, blogs, and more.<\/li>\n\n\n\n<li>Angular Getting Started Guide: This is a beginner-friendly Angular guide that contains many easy-to-understand examples and code snippets to get started with Angular development quickly.<\/li>\n\n\n\n<li>Angular Chinese Community: This is an Angular-focused Chinese community that provides many useful tutorials, tools, and resources to help you learn and apply Angular better.<\/li>\n\n\n\n<li>Angular Chinese.com: This is a very active Angular Chinese website that offers many useful tutorials and tools, as well as a dedicated community forum to help you solve various problems.<\/li>\n\n\n\n<li>Angular University: This is an online learning platform built specifically for Angular developers, with many high-quality video tutorials and courses to help you understand and master Angular more deeply.<\/li>\n<\/ol>\n\n\n\n<p>All of these resources are very useful and can benefit from both beginners and experienced Angular developers. If you run into problems while learning Angular, these communities and resources can also help you quickly find a solution.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I want to do a video &hellip; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-919","post","type-post","status-publish","format-standard","hentry","category-material"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=\/wp\/v2\/posts\/919","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=919"}],"version-history":[{"count":1,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=\/wp\/v2\/posts\/919\/revisions"}],"predecessor-version":[{"id":920,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=\/wp\/v2\/posts\/919\/revisions\/920"}],"wp:attachment":[{"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=919"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=919"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/edu.ujhb.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=919"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}