FLASHCS3 ActionScript 3.0怎样用调用外部的MP3文件?

FLASHCS3 ActionScript 3.0怎样用调用外部的MP3文件?

代码要怎么写越详细越好

var _sound:Sound= new Sound();
var channel:SoundChannel;
//song.mp3为音乐路径，如与FLASH在同一目录只用写歌曲名称,不在同一目录则写出音乐路径如：音乐/song.mp3
_sound.load (new URLRequest("song.mp3"));
channel=_sound.play();

var SoundState:Boolean; var sndChannel:SoundChannel; var snd:Sound = new Sound(); snd.addEventListener(ProgressEvent.PROGRESS, ProgressHandler); snd.addEventListener(Event.COMPLETE, CompleteHandler); snd.load(new URLRequest("showroom.mp3")); var outputText:TextField=new TextField(); outputText.width = 500; outputText.height = 20; addChild(outputText); function ProgressHandler(e:ProgressEvent):void { outputText.text = "Loading: " + Math.round(100 * e.bytesLoaded / e.bytesTotal); trace("Loading: " + Math.round(100 * e.bytesLoaded / e.bytesTotal)); } function CompleteHandler(e:Event):void { outputText.text = "Sound loaded - click the stage to play and stop"; snd.removeEventListener(ProgressEvent.PROGRESS, ProgressHandler); snd.removeEventListener(Event.COMPLETE, CompleteHandler); stage.addEventListener(MouseEvent.CLICK, clickHandler); } function clickHandler(e:Event):void { SoundState=!SoundState; trace(SoundState); if (SoundState) { outputText.text ="PLAY"; sndChannel=snd.play(pausePosition); } else { var pausePosition:int = sndChannel.position; outputText.text ="PAUSE"; sndChannel=snd.play(pausePosition); } } http://www.6dn.cn/blog/article.asp?id=82