IoC模式（依賴、依賴倒置、依賴注入、控制反轉）

https://blog.csdn.net/dengjc2011/article/details/78677548

https://www.cnblogs.com/dubing/archive/2011/12/21/2295895.html

https://blog.csdn.net/q3585914/article/details/71439114

https://blog.csdn.net/zhengzhb/article/details/7289269

http://www.javashuo.com/article/p-rbqzqizv-eu.html

http://www.javashuo.com/article/p-xzmpncuh-n.html