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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.就算不能让他恢复记忆，但肯定不会有危险。Mystery:电视剧《海云台恋人们》以釜山的海云台为背景，讲述了失忆的检察官和黑社会组织老大的女儿偶然相遇一起生活后，发生的一系列搞笑而浪漫的爱情故事。杭州百姓也皆已醒来，出门张望，只看到城东南的滚滚浓烟，一时之间人心惶惶，不明所以。12. Os.system ()--Execute shell commands. Example:我们关注两个不幸的、身亡的合同杀手的打击和（通常不是）失误，坦率地说，他们对自己比对任何人都更危险。每一集都会看到弗兰（苏·帕金斯饰）和杰米（梅尔·吉德罗伊饰）试图追踪并杀死不同的目标。但是每一次攻击都会变成一堆错误的身份、错误的进入时间和错误的武器。无论是在树林中失去目标，还是不确定他们应该杀死一对同卵双胞胎中的哪一个，事情都很少按计划进行。