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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.末将以为，上将军此举不妥。Macro commands are a set of commands. By executing macro commands, one batch of commands can be executed at a time.湘西农家子弟狄云，自幼随师父铁锁横江戚长发和师妹戚芳习武务农。一天戚长发多年未见的师兄万震山派弟子来请戚长发去作客。三人到了万家。先是逢大盗吕通前来寻仇，狄云拼着受伤打退了吕通，却反而见疑于万家。书迷楼最快更新，请收藏书迷楼(.shumilou.)。