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战国时，齐国女孩桃花开拼命想改变命运，但就在她中选孟尝君的儿媳时，她遇到了杀手大寒。经过生死考验，大寒走完了杀手的一生，桃花开来到大寒的家乡，教孩子们念书习字。《上流社会》描述的是一位隐藏自己的身份的女人寻找一位即使自己不是财阀女儿、也愿意爱自己的男人，以及一位认为爱情是领导阶层为了支配他人而使用的情绪性手段、爱情只是束缚的男人。一位财阀的小女儿与一位由贫困双亲培养出来的男人，面对爱情、金钱、和生活的故事 。The Lins have many back gardens, but the orchid garden has a special significance and is the first one in the Lins' old house.2. Hit out一位老奶奶想卖出房子，但因为忘事答应了两个人，老奶奶决定在7天的时间里让他们搬来和她一起住，倘若有人行为不当，就不把房子卖给他，于是抢房之战就此展开? Revise and perfect.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: