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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.Console.log (application.getName ()); //tugenhua是的。葫芦狠狠瞪了他一眼，道：别胡说。Round 3: 1-2,丈夫出轨妻子表妹，妻子在帅气多金的男2的帮助下华丽转身逆袭的故事。(3) Aircrew Physical Examination Certificate