在Angular CLI 创建的angular项目中，如何引入css文件呢？
如果直接在index.html中引入，比如下面的代码
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>CnCommunicator</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="stylesheet" type="text/css" href="../fontello-7275ca86/css/fontello.css"> </head> <body> <app-root></app-root> </body> </html>
你将会得到如下错误
Refused to apply style from 'http://localhost:3000/fontello-7275ca86/css/fontello.css' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled.
解决方法：
angular 5 之前的版本，在 angular-cli.json 文件中搜索 styles关键字，然后将静态css文件添加到该属性内 "styles": [ "src/styles.scss", "src/fontello-7275ca86/css/fontello.css", "src/icomoon/style.css" ]
angular 6+ 的版本， angular-cli.json文件变成了angular.json文件了。因此，要在该文件中添加。
同理，引入assets 或者 js文件方法也类似。 "assets"属性里面设置引入的图片等；"styles"属性里面设置全局引入的 css文件；"scripts"属性里面设置全局引入的js文件
"build": { "builder": "@angular-devkit/build-angular:browser", "options": { "outputPath": "dist/cn-communicator", "index": "src/index.html", "main": "src/main.ts", "polyfills": "src/polyfills.ts", "tsConfig": "src/tsconfig.app.json", "assets": [ "src/favicon.ico", "src/assets" ], "styles": [ "src/styles.scss", "src/fontello-7275ca86/css/fontello.css", "src/icomoon/style.css" ], "scripts": [] },
另外一点，如果你想引入的css/js文件是远程服务器上的，那么直接在index.html里面引用即可。
// index.html
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>CnCommunicator</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="stylesheet" type="text/css" href="https://unpkg.com/@fonticonpicker/fonticonpicker/dist/css/base/jquery.fonticonpicker.min.css"> <!-- default grey-theme --> <link rel="stylesheet" type="text/css" href="https://unpkg.com/@fonticonpicker/fonticonpicker/dist/css/themes/grey-theme/jquery.fonticonpicker.grey.min.css"> </head> <body> <app-root></app-root> <script src="../assets/json/left-nav-template-one.sample.js"></script> </body> </html>