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他这才恍然大悟：在这样的洞中，烟雾才是致命的大杀器，同时，有了烟雾的遮掩，一切都有可能，一切都很方便。After a period of time, I gradually felt the design pattern and was able to find some application scenarios of the design pattern. And often apply those models, gradually deepen the understanding of the model, and turn it into their own things, can be used flexibly in other places.The disadvantage of state mode is that many state classes will be defined in the system. Writing 20 state classes is a boring job, and many objects will be added to the system. In addition, because the logic is scattered in the state class, although unpopular conditional branch statements are avoided, it also causes the problem of logic dispersion, and the logic of the entire state machine cannot be seen in one place.他们在金钱的罪恶里阴险的生活着，为达到目的，不择手段。上世纪50年代末，小兴安岭林区冬雪纷飞。青川林区和第一代林业工人迎来了严峻的考验。国家建设需要大幅度提高木材生产产量，能不能战胜困难完成几乎是不可能完成的生产指标？成为那一年和其后几年的主题。军人出身的林海市林业局局长郑毅对新任东方河林场的党总支书记魏建中的要求只有一句话：完不成生产任务提头来见。…,那个时候魏豹以为自己可以成为一统天下的天子。