一个可完成多步撤消/重做功能的VB控件源码，还可以一步撤消或一步反撤消所有操作，监听剪贴板，控件使用简单，对编写应用软件的朋友相当有用处。-To be completed by a multi-step undo/redo functionality VB source code control, you can withdraw or step by step all the anti-withdrawal operations, clipboard monitor, control the use of simple applications to the preparation of a very useful friend.