ActionScript 3.0 載入mp3和停止音樂

//建立聲音頻道物件
var soundChannel : SoundChannel;
//建立聲音物件
var sound : Sound = new Sound();

//先確定聲音載入完畢，之後再播放出聲音
sound.addEventListener( Event.COMPLETE, soundLoaded );
sound.load( new URLRequest("mymp3.mp3") );
function soundLoaded(e:Event) : void
{
 soundChannel = sound.play();
}

//停止聲音播放的按鈕
stopButton.addEventListener( MouseEvent.CLICK, stopButtonClick );
function stopButtonClick(e:MouseEvent) : void
{
 soundChannel.stop();
}