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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 BaiduCatalytic dehydration theory: mainly refers to changing the thermal cracking process of fibers to dehydrate and prevent the generation of combustible substances.5. Installing VueThe attack revenue of straight-line Batman is lower than that of parabolic Batman. Because the straight line will hit the Batman first, causing damage to overflow. The parabola will hit the Batman first.关蜜是家地产公司的公关经理，事业成功生活幸福。在十周年结婚纪念日当天，丈夫万杰突然失踪，留给她一笔巨额欠款。关蜜的生活产生了翻天覆地的变化。焦头烂额的关蜜遇到前来追债的设计师罗铮，在一起寻找万杰的过程中，两人产生了微妙的情感。罗铮替关蜜解决了债务并进入了关蜜所在的公司，两人接到公司下达的任务，动迁关蜜的婆婆姜玉珍所在的小区。姜玉珍因关蜜平时疏于照顾家庭，对关蜜颇有微词。面对针锋相对的婆婆，关蜜拿出专业的谈判技巧，与姜玉珍你来我往数个回合，婆媳俩也在谈判过程中逐渐互相理解和亲近。在与姜玉珍和罗铮接触的过程中，关蜜从一个完全不懂生活的职场女强人，蜕变成为一个懂得为他人着想，热爱家庭的成熟女性。而罗铮也从工地包工头成长为独当一面的设计师，并最终赢得了关蜜、姜玉珍及关蜜女儿的认可后成为她们的家人。一名年轻男子在朋友死后不久便失踪了。随后，在这个连结紧密的华沙富人区，大家的生活逐渐崩溃，秘密和谎言浮出水面。