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Liskov Substitution Principle, LSP (Richter Substitution Principle) means that subclasses must replace their parent types. In other words, in the process of software development, after the subclass replaces the parent class, the behavior of the program is the same. Only when the subclass replaces the parent class and the function of the software is not affected can the parent class be truly reused, and the subclass can also add new behaviors to the parent class. In order to look at an example of violation of LSP principles, the specific code is as follows:1958年，大跃进时代。钟叶平任青龙水库党委书记不久，既制订出提前一年完成水库竣工的跃进计划。省水利局长陈超人却认为此计划违背科学，不赞成实施。省委倪书记却支持钟叶平的计划，让她组织干部群众调研，拿出可行方案。钟叶平和主观武断的陈超人等据理力争，党办主任苏士荣向省委写信反映陈超人要扒开合拢囗的错误方案，脑羞成怒的陈超人准备撤消钟叶平的职务。关健时刻，倪书记来到工地，他通过调查了解，批评了陈超人等，受了批评的陈超人竟不顾施工安全，搞起“遍地开花”工程，造成溢洪陡坡大面积塌方，血的教训使陈超人受到严肃处理...Zheng Haonan Spokesman: 650,000 Zhen Ni Spokesman Every Three Years: 500,000 Yuan per Year陈启和吕馨就这样一下子聊到下午三四点钟，于是吕馨索性留下来，又吃了一顿晚饭。2. After shutting down, hold down the HOME key to keep it still, connect the data cable to the computer, and release the HOME key.这个白衣东方姑娘似水柔情，为偶遇的刀客付出一切，最后更是把命交给刀客，送给刀客一个天下。《大侦探波洛》第三季共10集，故事均改编自短篇小说，于1991年播出。1、How Does Your Garden Grow? 花园疑案2、The Million Dollar Bond Robbery 百万美元证券失窃案3、The Plymouth Express 普利茅斯快车上的谋杀案4、Wasps' Nest 蜂窝谜案5、The Tragedy at Marsdon Manor 马斯顿庄园的悲剧6、The Double Clue 双重线索7、The Mystery of the Spanish Chest 西班牙箱子之谜8、The Theft of the Royal Ruby 红宝石之玉失窃案9、The Affair at the Victory Ball 舞会谜案10、The Mystery of Hunter's Lodge 猎人小屋