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柳德焕在剧中饰演郑宝王一角，他是首尔中央法院法官、最高情报通也是林巴伦的好朋友。Then at this time, we will ping host 156 through 192.168. 1.146 to see if the ping can pass.　　《芭莎男士》执行主编/时尚总监等我长大了，我还能接着穿。在她们身后，还有一张矮榻，是为病人施针或推拿等用的，靠墙另有几个大木柜。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