flash as3拖动影片剪辑startDrag

鼠标按下拖动物体,鼠标弹起停止拖动
remote_mc.addEventListener(mouseEvent.MouseDown,drageRemote);
function drageRemote(event:MouseEvent):void{
remote_mc.startDrag();
remote_mc.removeListener(MouseEvent.MOUSE_DOWN,dragRemote);
}

function dropRemote(event:MouseEvent):void{
remote_mc.stopDrag();
remote_mc.addEventListener(MouseEvent.MOUSE_DOWN,dragRemote);
remote_mc.removeEventListener(MouseEvent.MOUSE_UP,dropRemote);
}