Question

FLASH AS3.0跳转帧数问题

stop()
add_btn.addEventListener(MouseEvent.MOUSE_DOWN,add);
function add(MouseEvent){
gotoAndStop(currentFrame+2);
}这个意思是说点击跳转到当前帧的下2帧，而且可以一直按下2帧！！！我想要的效果是点击一次跳到某帧再点击一次就返回该帧数！
btn.addEventListener(MouseEvent.MOUSE_DOWN,dianbtn)
function dianbtn(e:MouseEvent){
var my_load:Loader=new Loader();
my_load.load(new URLRequest("music.swf"));
my_load.contentLoaderInfo.addEventListener(Event.COMPLETE, onComplete);
function onComplete(e:Event) {
addChild(my_load);
}
}谁可以帮我加个代码。。就是点击多一次就Remove外部的文件（外部文件是音乐或者影片剪辑都可以去除）我会加分的！！！

Answer 1

stop();
var _count=0;
add_btn.addEventListener(MouseEvent.MOUSE_DOWN,add);
function add(MouseEvent){
if(_count == 0){
gotoAndStop(currentFrame+2);
}else if(_count ==1){
gotoAndStop(currentFrame);
_count=0;
}
_count++
}

Answer 2

stop();
var a:Boolean=true;//设一个条件，来判断
add_btn.addEventListener(MouseEvent.CLICK,add);
function add(evt:MouseEvent):void{
if(a){
gotoAndStop(currentFrame+2);//你希望跳到的某帧
a=false;
}else{
gotoAndStop(currentFrame-2);//返回原先那帧
a=true;
}
}

Answer 3

stop()
var k=0
add_btn.addEventListener(MouseEvent.MOUSE_DOWN,add);
function add(MouseEvent){
if(k==0){
k=this._currentframe
gotoAndStop(currentFrame+2);
}else{
gotoAndStop(k);
k=0

}
}