as3中的EventListener问题？

Question

我有一段代码，我遇到了问题，似乎即使我告诉它这样做，事件监听器也没有被删除，导致第2帧出现1009错误。

以下是代码：

stop();
import flash.events.Event;
var loaded:Number
var total:Number;
var percent1:Number;
var percent2;

    addEventListener(Event.ENTER_FRAME, enterFrameEvent);
    function enterFrameEvent(event:Event):void{
    loaded = this.loaderInfo.bytesLoaded;
    total = this.loaderInfo.bytesTotal;
    percent1 = loaded/total;
    percent2 = percent1 * 100;
    loadingBar.scaleX = percent1;
    playButton.alpha = percent1;
    if(loaded===total){playButton.alpha = 1};
        }
    if (loaded === total){removeEventListener(Event.ENTER_FRAME, enterFrameEvent)}

    addEventListener(MouseEvent.CLICK, mouseClick);
    function mouseClick (event:MouseEvent){
    if (playButton.alpha == 1){
        removeEventListener(MouseEvent.CLICK, mouseClick);
        gotoAndPlay(2);

    }

Answer 1

试试..

 if (loaded == total){removeEventListener(Event.ENTER_FRAME, enterFrameEvent)}

而不是......

 if (loaded === total){removeEventListener(Event.ENTER_FRAME, enterFrameEvent)}

区别是==（相等运算符）和===（严格相等运算符）。希望有效。