20 lines
386 B
VB.net
20 lines
386 B
VB.net
Namespace Undo
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Public Interface ICommand
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''' <summary>
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''' 运行一条需要记录在撤销栈的命令
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''' </summary>
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Sub Execute()
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''' <summary>
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''' 重做命令
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''' </summary>
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Sub Redo()
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''' <summary>
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''' 撤销命令
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''' </summary>
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Sub Undo()
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End Interface
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End NameSpace |