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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.外加你为官名声如此，严党不收，非严党不屑，你可有平反之日？胡宗宪听得不住颤抖。随着启明的规模不断扩大，陈启也想过是不是在网上连载武侠，不过很快他就打消了这个主意。反串无下限，笑料更升级！荡气回肠，劲爆无比的辣味英雄故事再度来袭。这一次，神兽“张伟”闪亮登场，欲与小贤、子乔争宠讨一菲欢心，最终结局怎样？敬请锁定爱奇艺独家观剧！男主人公志南，一场昏昏沉沉的车祸让志南与好基友李雷一起经历了一连串奇妙搞怪的“艳遇”，邂逅了风格各异、风姿绰约、风情万种的姑娘，最终觉得平淡生活中的小“幸”感或许才是最美好，最可贵的从一场奇幻的梦里醒来，发现每个看似完美的人在爱当中都会有缺陷，当你阅尽千帆，也许才会发现真实的美好就在自己身边。错过是那么容易，误解也轻而易举女娃儿么，就该斯斯文文的，整天往外跑。