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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:Poisonous mushroom vitality agent你要不放心，我让人去跟你娘说一声。天地玄黄，生生不息，随着历史时光交替，诸多秘密尘封于世界八方，伴随着它们的故事代代相传，这些故事或神奇玄妙，或曲折惊奇吸引着一代又一代好奇的人们一探究竟。到了今时今日的天朝上国，一段关于开天辟地之际的上古界世奇星的传说正被流传着。传说在每一次时局动荡，天下大乱之际，都会有天降奇星，重建秩序。时至今日，历史重演。一场举国皆知的流星雨过后，当朝年轻皇帝派亲信少年白泽前往塞外找寻天降奇石，希望能以界世奇石的无穷力量排除奸妄，安定天下。Int arrayInt [] = split (exp, "\ +");When performing some abnormal operations, such as stopping the database without reason when reading and writing the database, resulting in abnormal interruption of SQL Server database,