继承的定义flash.display:DisplayObject.y存在冲突。

import flash.events.MouseEvent;

kq.buttonMode = true;

kq.addEventListener(MouseEvent.MOUSE_DOWN,toDrag);

kq.addEventListener(MouseEvent.MOUSE_UP,stDrag);

function toDrag(me:MouseEvent )

{//对象被拖动

me.target.startDrag();

}

function stDrag(me:MouseEvent )

{//对象停止拖动

me.target.stopDrag();

if (kq.hitTestObject(kq2))

{

kq.x = kq2.x;

kq.y = kq2.y;

}

else

{

kq.x = kq1.x;

kq.y = kq1.y;

}

}

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