Event.COMPLETE

var snd:Sound = new Sound();
snd.addEventListener(Event.COMPLETE , ok);
var url1:URLRequest = new URLRequest("E:\\mp3\\民歌\\军港之夜.MP3");
snd.load(url1);
function ok(e:Event):void {
//var channel:SoundChannel = snd.play();
var ss:Sound = e.target as Sound;
ss.play ();

//请问Event.COMPLETE是什么事件