namespace frontend/assets;use yii/web/AssetBundle;/** * Main frontend application asset bundle. */class AppAsset extends AssetBundle{  public $basePath = '@webroot';  public $baseUrl = '@web';  public $css = [    'css/site.css',  ];  public $js = [    'js/main.js',  ];  public $depends = [    'yii/web/YiiAsset',    'yii/bootstrap/BootstrapAsset',//注意這里必須要有    'rmrevin/yii/fontawesome/AssetBundle',  ];}

namespace yii/bootstrap;use yii/web/AssetBundle;/** * Asset bundle for the Twitter bootstrap css files. * * @since 2.0 */class BootstrapAsset extends AssetBundle{  public $sourcePath = '@bower/bootstrap/dist';  public $css = [    'css/bootstrap.css',  ];  //下面是增加的代碼  public $js = [    'js/bootstrap.js',  ];}