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众人听了他的话，心头大震，一齐看向玉米。尹旭不由轻叹一声，说道：既如此，就分头准备吧，我们就尽力一搏，尽人事，听天命。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好容易将老太太伺候睡了。唐朝灭亡二十年，历史进入五代十国时期，中原藩镇割据，战乱不断，礼乐崩坏，仁人志士教育兴邦。位于中州府的太乙山有一传承百年的书院，山长是当世大儒，引来精英士子前来书院求学，使得太乙山成为乱世中的乐土，可是“则天宝藏”就在太乙山的传闻引来各方人士窥伺，打破了太乙山的宁静岁月。山东豪绅张茂之子张谊（梁大维饰）因被叔叔篡夺家业，带着妹妹张樱（金梦阳子饰）流落中原，机缘巧合入太乙山求学。在太乙张谊遇到人形图书馆李璟玉（李汶翰饰）、数学天才崔伽罗（张芷溪饰）、猎人王恩珠（艾晓琪饰）、机械师端木正（张瑞涵饰）。李璟玉为了稳定自己太子地位，崔伽罗为了摆脱家族的操控，端木正为了振兴师门，王恩珠为了再也不愚钝，每个人进入太乙山都有自己的学习目的，有着少年的好强与上进心。大家不打不相识，从彼此防范的陌生人，到共同学习的伙伴，面对各种突发事件，一起成长，在各自学习领域取得收获此与当年汪直所提之事，有何不同？……徐阶心中一紧，暗叫不好，即便言语上做足了修饰，这几条却仍与当年汪直提的条件如出一辙　　如此，多次挑战大洞穴的冒险者们，