构件的拖动

mc.buttonMode=true;//设置鼠标手型
mc.addEventListener(MouseEvent.MOUSE_DOWN, tuo);

function tuo(event:MouseEvent):void {

	mc.startDrag();

}

mc.addEventListener(MouseEvent.MOUSE_UP, ting);

function ting(event:MouseEvent):void {

	mc.stopDrag();

}

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