Finally, the done method, seen in Listing 7, removes the translucent rectangle, because the drag-and-drop process is now over.

最后，done方法(参见清单7)删除这个透明矩形，因为拖放过程现在已经结束。

youdao

Finally, the done method, seen in Listing 7, removes the translucent rectangle, because the drag-and-drop process is now over.

最后，done方法(参见清单7)删除这个透明矩形，因为拖放过程现在已经结束。

youdao