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《喜羊羊与灰太狼之奇幻天空岛》是《喜羊羊与灰太狼》系列的第18部作品。是喜羊羊冒险系列《嘻哈闯世界》的第三部作品。背景是1940年代伦敦的闪电战。在六年里写了十二部波洛小说之后，阿加莎·克里斯蒂应该是个有钱的女人了。相反，她正努力维持收支平衡。当钱用完后，阿加莎策划了一个计划，要把她最著名的作品杀掉，然后把手稿卖给一个超级富翁。当阿加莎的买家心脏病发作时，这似乎是不幸的，但却是良性的。她的手稿被偷后，一个更广泛的阴谋开始形成。随着炸弹落下，她开始调查，她处境的危险变得显而易见；阿加莎本人就是凶手的下一个目标。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:"No." The security guard replied to me, "It is true that some people just want to come and see the situation. And he also doesn't want you to be nervous. The money may still be available."After hearing these words, I briefly summarized and recorded the characteristics of two different "living biological weapons" on position 169 and position 142 in the interview notebook and compared them:付宇锋连忙说道：我这是真心话。