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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 BaiduNow, although the practice is over, the words of "industry serving the country" and "down-to-earth" are deeply imprinted in the hearts of the team members. "I hope you can be intelligent" low entropy "people, because in this way you will be richer and become more useful to the society in the future!" It is precisely because of Mr. Sun Yimin's hard guidance and accompanying team members that they can have a broader vision and more confidence in the future.Xinjiang Uygur Autonomous RegionList of Hourly Minimum Wage Standards in All Provinces and Cities in China郑中、郑发和郑白三兄弟是香港云吞面店“郑记”的继承人，作为继承人的三兄弟中却只有老大郑中愿意继承祖业，老二郑发醉心于影视表演，老三郑白则一心想做一名教师。但老大郑中不善经营，当年门庭若市的云吞面生意日渐冷清，此时曾被郑家开除的郑记旧员工刘诚竟变成富豪，于郑记对面开设新派经营的“天下第一”面店，欲向郑家报复，打击其生意。郑记生意暴跌，走投无路，郑中却在一次偶然的“相亲”中认识了退隐江湖的味王李炳焕之女儿，从此在味王的面店打工。同时，刘诚向味王提出比赛，并派有名的英俊厨神Jack出战，而味王则派郑中应战，最后郑中胜出。味王答应为郑家重振祖业，并且寻找昔日部下重出江湖……Subway station is the center of the whole subway network. It not only undertakes the functions of personnel gathering and evacuation, but also undertakes the functions of various professional equipment and the operation of the whole system. The design of subway station is very important. The design of a station includes many specialties. In the traditional design, ISCS, BUS, FAS, PA, PIS and other professional engineers are difficult to achieve unity. BIM technology provides a collaborative design platform, which can promote effective communication among various specialties and integrate all resources. The application of BIM makes design communication more convenient, easy to adjust and improve, thus optimizing the design.侯府嫡女于妧妧从小遭遇十几次暗杀，靠装疯卖傻才活到现在，却在离家出走时被良人司季良月救下。司季良月答应保护于妧妧在府中安全，而于妧妧需要帮助司季良月在侯府中找出当年导致司季良月残废三年的毒药。有了司季良月撑腰，于妧妧成功逆袭，司季良月更是化身护妻狂魔，处处维护自己心爱的女孩。