as3 sound obj 常用的play and pause,播放聲音as

package
{
    import flash.display.MovieClip;
    import flash.media.SoundTransform;
    import flash.media.Sound;
    import flash.net.URLRequest;
    import flash.media.SoundCodec;   
    import flash.media.SoundChannel
    import flash.events.MouseEvent;
    /**
     * ...
     * @author ...
     */
    public class sound_mc extends MovieClip
    {
        var pausePoint:Number = 0.00;
        var isPlaying:Boolean;
        var soundChannel:SoundChannel = new SoundChannel();
        var sound:Sound = new Sound(new URLRequest("trip.mp3"));       
        public function sound_mc():void {
            trace("sound_mc");
            _sound();
        }
       
        private function _sound():void {
           
        //聲音部分START
        soundChannel = sound.play(0,999);///從第一秒開始播,放999次
        isPlaying = true;
        _AREA.buttonMode = true;
        _AREA.addEventListener(MouseEvent.CLICK,clickStop)   
            }
        private function clickStop(evt:MouseEvent) {
           
        if (isPlaying) {
            soundChannel.stop();
            trace("停止");
            isPlaying = false;
            _ICO.gotoAndStop(2);
        } else {
            trace("繼續播");
            soundChannel = sound.play(0,999);
            isPlaying = true;
            _ICO.gotoAndStop(1);
        }
        pausePoint = 0.00;
        }       
       
        }
   
   
}

//--------------------------------------------------------------------------------------
人家寫好的sound_mc_fla檔
(download_fla)
sound_mc物件必須繼承com.frogiology.sound_mc <=這支as檔案

來源網址
http://blog.frogiology.com/2008/09/07/flash-tweener-lesson3-10-usages/

//最基本播放聲音as---------------------------------------------------------------------------

//_bug是原件庫的物件匯出給as使用叫做_bug
var sound=new _bug();
var channel:SoundChannel = new SoundChannel();
 channel=sound.play(0,999);//播放999次

//關閉聲音function
function  closesound() {
channel.stop();
channel=null;
}

//最基本單純播放聲音-------------------------------------------------------------------------------