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不得不说，戚继光某些想法虽然不地道，却很在理，若是一味拘泥于这些事，那真就什么也做不成了。行动间。The Liskov Substitution Principle (LSP) is one of the basic principles of object-oriented design. The Richter substitution principle says that wherever a base class can appear, subclasses can certainly appear. LSP is the cornerstone of inheritance reuse. Only when derivative classes can replace base classes and the functions of software units are not affected can base classes be truly reused, and derivative classes can also add new behaviors to base classes. The Richter substitution principle is a supplement to the "open-close" principle. The key step to realize the "open-close" principle is abstraction. The inheritance relationship between the base class and the subclass is the concrete realization of abstraction, so the Richter substitution principle is the specification of the concrete steps to realize abstraction. --From Baidu《缉私要案组》根据多个海关所发生的真实案例改编而成，是中国首部以海关缉私为题材的电视连续剧，由海润影视公司和北京紫禁城影业公司联合制作。讲述的是，某海关调查分局局长林鸿力率部下查获一起走私案，众人在喜悦中准备为战友徐光辉庆祝生日时，传来徐光辉牺牲的消息。面对走私案犯的嚣张气焰，海关总署决定成立缉私要案组，经过一番惊心动魄的较量，林鸿力和他的伙伴们终于挖出了危害国家经济安全的犯罪集团，并将他们一网打尽。