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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.《大君》讲述了一个女子与她身边两位王子的血色浪漫故事Just like Gu Xixi's speculation, someone really whispered on Jia Min's ear. Jia Min wrinkled up...现在尹旭所关心的还是刘邦死亡的事情，若真是如此，其中蕴含的意义的契机着实不少。We know that when the transmission control protocol establishes the connection, the TCP three-way handshake will be carried out first. In this project, when the server receives the SYN connection from the client,　　简盈越长越大，四兄弟的人生也越来越像模样。为了简盈能够健康地成长，他们一点点改变自己。在爱与责任的牵引下，他们重新着手规划自己的人生，并寻找着属于自己的真正幸福。可是就在这个时候，消息传来，他们不得不面临着简盈因没有合法领养手续，必须与简盈分手的严峻现实……16.6 Chronic progressive diseases of nasal and paranasal sinuses that affect function are unqualified.