你可以使用重做命令来扭转撤销命令进行的操作。

You can reverse the action of the Undo command by using the Redo command.

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命令可用来验证用户的交互，并且提供撤销和重做支持。

Commands can be used to validate the user's interaction, and to provide undo and redo support.

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命令模式的使用包含整个类框架设计和几套图形编辑操作子类设计，支持可以撤销重做的操作。

The command design pattern which provides undo-redo operation, is applied to the whole class frame design and several sub-classes design of graphics edit operation.

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