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Concerning the choice of plants and resulting hues, here are variable suitable ingrejects:Four, genius and celebrities are using the methodThe 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 BaiduComputer.shutdown ();解放战争时期，一处名叫江城的小城成了风云交汇的中心，多重力量在此惨烈搏杀。该剧聚焦在柔弱女子何娜身上。她独自一人潜入敌人内部，粉碎了敌人的“零号计划”，保护了江城百姓。由《军统枪口下的女人》原班人马升级重组，魏宗万、姚居德、韩月乔、高语阳、汪坚辛再续传奇。