帮忙看下 一段as3 缓动效果的代码 实现不了[已解决]

import gs.*;
import gs.easing.*;
image_mc.addEventListener(MouseEvent.MOUSE_MOVE,oo)
function oo(e:MouseEvent) {
    var _posX:Number = mouseX/ Stage.width * (Stage.width - image_mc.width);
    TweenLite.to(image_mc,1,{x:_posX});
};

Stage.width 　换成　stage.stageWidth

顶老师~~~！！！！ 基础不扎实