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郑氏在红椒身边坐下，道：不是吃不起，是太费事。在那里，成长的尽头有着自己独特的价值观生活着存在着“尽头的村庄”。Differences between simple factories and factory methods: Simple factories and factory method patterns look very similar, especially specific factories in simple factories and factory methods. Simple factory, all things have been done in one place. However, the factory method creates a framework for subclasses to decide how to implement it. For example, in the factory method, the OrderPizza method creates a general framework to create pizza. The OrderPizza method relies on the factory method to create specific classes and make actual pizza. It is possible to decide what the actual products manufactured are by inheriting the factory. Simple factories do not have this flexibility.Now the mainstream configuration in the market can be done.Gu Xiqian knew the value of sweet potatoes, but this period …Bicycle2. Refactoring the code with a combination function