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Article 10 Traffic Separation System故事背景设定在不久的将来，美国被第二次内战摧残。故事集中发生在名义上的DMZ（非战区），一个饱受蹂躏的曼哈顿岛。Can you help me pick some and put them on my segment? "On the afternoon of 26th, Huawei released its first 5G mobile phone in the Chinese market!Soon I saw Li Jianzhong's C # Object-Oriented Design Pattern Lecture on MSDN's Webcast. A very good series of lectures gave me a new understanding of design patterns. I realized that learning design patterns, specifically learning object-oriented design patterns, should start with learning object-oriented. "The principle of object-oriented is like understanding the rules of chess, and the design pattern is equivalent to a mess. I don't know what the rules look at." Since I have been doing ASP.NET development for the previous year, although I have been writing classes, learning Duwamish to make hierarchical architecture, typed DataSet and custom entity classes, it seems that I haven't used interfaces much in the past year, and I seldom use any polymorphism. In fact, the understanding of object-oriented programming is still very vague.In the factory method mode, the factory class and the specific product class have a parallel hierarchical structure, and there is a one-to-one correspondence between them.Class.forName (driverClassName);