Undo

Mark & Group

 

UNDO命令提供了其他的选项用于标记(M)工作中的操作。然后返回放弃到该标记为止的图形。也可以用UNDO命令的“开始(BE)”和“结束(E)”选项给几个操作进行编组,然后倒退输入的编组操作。

AutoCAD

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