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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.If the fire-fighting facilities maintenance and testing institution fails to publicize the fire-fighting technical service information on the conspicuous position of the building where the fire-fighting facilities repaired and maintained by the institution or on the fire extinguisher in accordance with these Provisions, it shall be ordered to make corrections and fined not more than 5,000 yuan.已经决定再不涉朝政，就任他去吧，若真当自己是国之柱石，只怕临了不得善终Attacks from within:Zhang LiangyingAs for why, look at the following development cases.女的则是清南村的，是死（四）狗子的小妾。