1.可以用来更改Flash背景风格

private function imgLoader(imagePath:String):void        {            skinsLoader = new Loader();            skinsLoader.contentLoaderInfo.addEventListener(Event.COMPLETE,imgLoaderComplete);            skinsLoader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,imgIOErrorHandler);            var urlRequest:URLRequest = new URLRequest();            urlRequest.url = "resource/"+imagePath;            skinsLoader.load(urlRequest);        }                private function imgLoaderComplete(event:Event):void        {            var bitmap:Bitmap = event.target.content as Bitmap;            bitmap.width = stage.stageWidth, bitmap.height = stage.stageHeight;            var bitmapData:BitmapData=bitmap.bitmapData;            this.graphics.beginFill(0x000000);             this.graphics.drawRect(0,0,this.width,this.height);            this.graphics.beginBitmapFill(bitmapData);            this.graphics.drawRect(this.x,this.y,this.width,this.height);            this.graphics.endFill();                       skinsLoader.contentLoaderInfo.removeEventListener (Event.COMPLETE , imgLoaderComplete);            skinsLoader.contentLoaderInfo.removeEventListener (IOErrorEvent.IO_ERROR , imgIOErrorHandler);            skinsLoader = null;        }