按钮名为btn,代码如下
btn.addEventListener(MouseEvent.MOUSE_OVER,MouseOverEvent);
btn.addEventListener(MouseEvent.MOUSE_OUT,MouseOutEvent);
function MouseOverEvent(e:MouseEvent):void
{
this.addEventListener(Event.ENTER_FRAME,PlayBackEvent);
}
function MouseOutEvent(e:MouseEvent):void
{
this.removeEventListener(Event.ENTER_FRAME,PlayBackEvent);
}
function PlayBackEvent(e:Event):void
{
if(this.currentFrame!=1)
{
this.prevFrame();
}
else
{
this.removeEventListener(Event.ENTER_FRAME,PlayBackEvent);
}
}
本回答被提问者和网友采纳