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我去。《孤独的美食家》特别篇“大晦日SP”将于12月31日播出！MDT members encourage constructive discussions and debates;Dissolve********本文涉及律法条文参照《唐律疏议》。Recommendation of Hot Joining Projects: Hu's Large Plate Chicken Joins Big Official Rice Noodles Joins Meimao Maocai Joins Gao Jimi Joins Jin Fuxiang JoinsThe above is only a model of "Long En" bicycle, If you need to generate other types of bicycles, Other subclasses can be written. The most important advantage of factory mode is that some of the same methods can be implemented. We can write code in the parent class for these same methods. If we need to implement specific business logic, we can rewrite the parent class's methods in the subclass to implement our own business logic. In terms of professional terms, there are two points: First, weaken the coupling between objects and prevent code duplication. Instantiating a class in a method eliminates repetitive code. Second: Repetitive code can be written in the parent class. Subclasses inherit all member attributes and methods of the parent class. Subclasses only focus on implementing their own business logic.