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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.So far, more than 100 stars have been poached,混战中，南灵王被擒，而青鸾公主在一队南雀军拼死掩护下，惊慌逃走。远藤贤一为什么要做这种事情？　　此剧讲述踏入三十岁后时期的女性们，通过美丽而激烈的爱情来寻找认同感的故事。　　还是让我们先说说剧情，“天人星”天人小艾为了参加 “天人长晋级考试”来到了地球。此次考核成败关系着小艾的生命形态--晋级成为一名天人长或失败成为一株仙人掌。随着小艾经历的各种奇葩搞怪任务中感受到人与人之间最为真挚朴实的温馨与感动，但随着时间的减少，小艾的身体日渐虚弱，能量流失严重，她能成功吗？会不会变成一株仙人掌流放地球呢？在这里我只能说这么多了，还是要在爱奇艺上看我们的《三餐物语》吧，可以了解更多详情！