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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 Baidu何霆深陷的眼窝射出迫人光芒，理也不理他，对汪魁喝道：杀。讲述同为仙石化身的六耳猕猴受奸人陷害，化身巨猴危害人间，累及悟空蒙冤，终得昭雪的故事。以孙悟空为代表的正义一方为使凡间百姓免受灾祸，置个人得失于不顾，千方百计阻止巨猴作乱，终于取得成功。以及讲述心胸狭窄的通臂猿猴妄图夺取西天取经人身份，与孙悟空斗智斗勇的故事。刻画出孙悟空在失败面前从不消沉，愈挫愈勇的性格特征，并最终依靠集体的力量战胜了敌人的故事。When attacked by DDoS, the phenomenon is:Is there a problem with your cell phone? Find Brother Guo!这部定名为《贝蒂 Betty》的6集喜剧项目背景设置于纽约，讲述一群多元化女性如何在男性主导的滑板界闯出自己的路。主演有电影版演员Dede Lovelace﹑Ajani Russell﹑Moonbear﹑Rachelle Vinberg及Nina Moran。Dry goods, praise one