使用工厂方法设计模式的正确方法是什么？
What's the right way to use the Factory method design pattern?
数据源是系统的基础，采用了“工厂模式”设计与实现该模块；
Data source is the base of the system, which adapted factory schema to be finished.
数据源是系统的基础，采用了“工厂模式”设计与实现该模块；
Data source is the base of the system, which adapted factory schema to be finished.
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