怎么设置点击间隔时间

如何设置点击间隔时间

private var _mouseDownTime:int;        private function e_MOUSE_DOWN(evt:MouseEvent):void {            _mouseDownTime = getTimer();        }        private function e_MOUSE_UP(evt:MouseEvent):void {            if (getTimer() - _mouseDownTime < 275) {                e_CLICK(evt);            }        }