将一个jQuery draggable对象还原到它原来的容器上，以退出可删除的事件。

I have a draggable item which if not dropped in a droppable will revert. This works well until a user drops an item in the droppable. If they decide they've made a mistake anytime they pull the draggable out it reverts to the droppable. I would prefer that on out and deactivate the draggable goes back to its original container.I have a draggable item which if not dropped in