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那不是我姐姐。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.青木到了张家，倒没费事叫门，孙铁带人在院子四周巡查哩，门房也亮着灯。3. ITunes will start automatically at this time and prompt you to resume the mode (iPhone will always remain black). Then you can hold down the shift key on the keyboard, click "Recover" and select the corresponding firmware to restore.The "deliberate practice" introduced in this book is based on purposeful practice, but on top of this, there is more emphasis.