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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.According to the "Special Provisions on Labor Protection for Female Workers", female workers have the right to refuse to engage in heavy manual labor such as underground mining operations:The advantage of living in the countryside is that we can use local materials, such as onion skins, green persimmons, Dioscorea cirrhosa, etc., which can be collected on the market day when we go to the countryside. Share our experiences and the effect of mixing them with blue dye.听得刘黑子眼睛发亮，说自己也听见了叫喊声，不过当时正忙着，就没下去了，谁知这样热闹，早晓得就去了。高傢兄弟因為價值觀截然不同,不但成就高低立判,連教育齣來的子女,個性和品格也大相逕庭. 上1代有上1代的恩怨情報,下1代有下1代的追求展望；在錯綜複雜的人生大道上,每個人都汲汲營營,尋找著屬於自己的幸福課題什么东西在吵……陈启迷迷糊糊的嚷了一句，然后又开始睡觉。