FengJungle cbfbfda1e8 delete unused files and delete copy ctor, copy assign for MementoPattern		2021-10-30 10:45:26 +08:00
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1.Picture	add Memento Pattern	2019-11-05 22:47:55 +08:00
2.Code	delete unused files and delete copy ctor, copy assign for MementoPattern	2021-10-30 10:45:26 +08:00