https://blog.csdn.net/lmx125254/article/details/86625960
https://www.cnblogs.com/hama1993/p/10442519.html
https://blog.csdn.net/zwj_jyzl/article/details/80869905
简单工厂模式与策略模式区别
原文：https://www.cnblogs.com/yixiu868/p/12267091.html
