声音加载

 1 var sound:Sound = new Sound(new URLRequest("music/bg.mp3"),new SoundLoaderContext (2000));

 2 var chan:SoundChannel=sound.play();

 3 var pausePosition:int;

 4 an_btn.addEventListener(MouseEvent.CLICK,onClick);

 5 function onClick(e:MouseEvent) {

 6        if (mc.currentFrame==1) {

 7           mc.gotoAndStop(2);

 8           pausePosition= chan.position;

 9           chan.stop();

10      } else {

11           mc.gotoAndStop(1);

12           chan=sound.play(pausePosition);

13      }

14 }