Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
如何制作一张可以拖动的地图，地图肯定比场景大，这样才可以拖动，拖动的时候希望到达地图边缘的时候场景边界能够卡住地图边界不会拖出去，请问这个怎么制作
