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The fundamental reason for using design patterns is to adapt to changes, improve code reuse rate, and make software more maintainable and scalable. In addition, the following principles should be followed when designing: single responsibility principle, open and closed principle, Richter substitution principle, dependency inversion principle, interface isolation principle, composite reuse principle and Dimit principle. Each design principle is described below.《白熙回来了》讲诉了Scarlett，一个在安静的岛屿生活了近十八年的主人公。十八年后，她变换了身份，以“杨白熙”的身份回到了繁华的大都市，并发生了一系列的故事。虽然本剧的故事主线简洁明了，但其中有许多未解开的谜，如：Scarlett为什么要离开岛屿?她为什么要以一个新的身份回来?她回来时为了复仇还是寻找什么事物?这一切的答案唯有在电视剧中寻找了…遥远神秘的南太平洋小城、鬼斧神工气氛惊悚的喀斯特地貌溶洞、冰冷凛冽无边无尽的地下暗河和那个昏暗绝望的封闭式审讯室中，隐藏在黑暗中的真相随着记忆的释放而被层层剥离。然而，当真相大白之际，一个隐藏在真相背后的惊天秘密也随之揭晓…不过单单是我们和刘邦未必是尹旭的对手，还是要看韩信的态度。Please note-the following commands will not work until you enter flight simulator mode.However, many enterprises have already found the clue when they are attacked for the first time, and security managers also need to give an answer as to whether malicious attacks will come back. Therefore, although CSO people do not want to talk much, we still hope to know their handling attitude. In order to avoid unexpected troubles, we reported the experiences of several CSO's in the work in an anonymous form, and discussed why the security strategy that had always worked failed in the end.Parsing: Most people will first see the ternary operator and then output the result Value is somethin.