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只有这样，咱们才能安安心心地坐下来谈判。The 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.马德录生怕别人不相信自己，慌忙道：确信确信，小的昔年曾在上郡服役，曾见到蒙大将军佩此剑检阅军队。Emin最小的儿子Kadir Saruhanli从监狱回家过节，父子俩的过节再次被提起。可是时过境迁，竟然落得如此下场的，当真是让人唏嘘不已。适才的生产耗费了她许多的力气和精神，这会子还很是虚弱。