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One problem with the factory method pattern is that the creation of the class depends on the factory class, that is to say, if you want to expand the program, you must modify the factory class, which violates the closure principle. Therefore, from the design point of view, there are certain problems, how to solve them? We use the abstract factory mode to create multiple factory classes, so that once new functions need to be added, we can directly add new factory classes without modifying the previous code. Because the abstract factory is not very easy to understand, let's look at the diagram first, and then it is easier to understand with the code.在太监的搀扶下，嘉靖终于逃离了太和殿。杨继盛是货真价实的拼命，他根本不是通政司督察院的人，兵部出身，一心精忠报国捍卫京师，却屡屡被严嵩误事，终致庚戌之乱，兵困将庸，杨继盛知道，只要严党在一切就不可能变好，恨严嵩入骨，不惜以命相搏，不管我是谁，你是谁，我就是要用命搞你，折磨杀头通通不在话下。3. Use object instead of string to record the current state, which makes the state switching more clear at a glance.他却未多想，因为得失成败就能有所转变？总而言之，将满腔的仇怨全部加诸到了尹旭身上，现在唯一的期盼便是等候在途中的罗七，希望他能够顺利干掉尹旭。　　故事发生在上一集叶戈尔（男主角安东之子）归入黑暗阵营几年之后……