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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.The turn signal must be turned on when the vehicle changes positions, and the only one that cannot be turned on is to enter the roundabout (turntable).该剧是一部浪漫喜剧，讲述了在首尔市中心豪华国际共享公寓中生活的6名魅力四射的跨国男女的恋爱故事。李大辉饰演男主角东镇宇，小小年纪就失去了父母，被奶奶抚养长大，他凭借从奶奶那里学到的房产投资技术，积累了大量资产，是成功的房产投资者，也是共享公寓的主人。姜旻儿将饰演女主角姜宥娜，以休学生身份就职于延南洞全球分享公寓，与刻薄的屋主东镇宇相爱，与全球青年建立了友情。只是他们所谓的合作更倾向于直接收购启明，这是陈启不能接受的，所以基本上都直接推辞。　 在婴儿集团－世界最大的婴儿产品生产销售商－的总部秘密地下世界里，世界著名的婴儿精神学家艾莲娜凯德博士（凯瑟琳特娜）在经年的研究后即将得出结果：一部分婴儿一出生就是天才－他们拥有代代相传的智慧，在 DNA中有特殊的基因来传递这种智慧，只有当他们到了两岁以后，当他们学会了说话并能够同成人世界交流后，他们的特殊智慧才渐渐地被磨灭。对身边喊，赶紧把他们都杀了。我不过是浑水摸鱼，大局，还是要胡兄来掌。