public function TestDoubleClick() {
var btn:Sprite = new Sprite();
btn.x = 50 ;
btn.y = 50 ;
//btn的按钮状态
btn.buttonMode = true ;
//鼠标是否可用。
//bt.mouseEnabled = false ;
//双击开关
btn.doubleClickEnabled = true ;

btn.graphics.lineStyle(2, 0xFFFFFF, 100);
btn.graphics.beginFill(0xFF0000, 100);
btn.graphics.drawRoundRect(0, 0, 60, 60, 4, 4);
btn.graphics.endFill();

btn.addEventListener(MouseEvent.DOUBLE_CLICK, onDoubleClick);
btn.addEventListener(MouseEvent.CLICK, onClick);

addChild(btn);

}
public function onDoubleClick(e:MouseEvent):void {
trace(e);
}

public function onClick(e:MouseEvent):void{
trace("click");
}

}
}