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一时之间，无论朝廷言官还是宫里的太监，都对蓝道行骂个不停。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.Factory Pattern: Factory Pattern is a frequently used pattern. Classes implemented according to Factory Pattern can generate instances of one of a group of classes according to the provided data. Usually, this group of classes has a common abstract parent class and implements the same methods, but these methods perform different operations for different data. First of all, we need to define a base class. Subclasses of this class implement methods in the base class through different methods. Then you need to define a factory class that can generate different subclass instances according to conditions. After getting an instance of a subclass, developers can call methods in the base class regardless of which subclass instance is returned.《班长大人》改编自超人气同名漫画，而该漫画在网络上点击率超过千万，由偶像演员倾情加盟，上演了一段热血的青春故事。Most of them visit a family of more than three, and the restaurant can also add morning at their own expense. There is also an option. There is a zero breakfast in the lobby of the first district. There are conventional porridge, bread, fried dough sticks and soya-bean milk. There are not many varieties and it is really affordable.You can set the "keyboard increment" in the preferences. If you set 1 pixel, then you are moving by pressing the direction key in 1 pixel.来人是胡钧。