dip vs di vs ioc
https://stackoverflow.com/questions/6766056/dip-vs-di-vs-ioc
https://docs.microsoft.com/en-us/aspnet/core/fundamentals/dependency-injection?view=aspnetcore-2.0#registering-services
https://docs.microsoft.com/zh-cn/aspnet/core/fundamentals/dependency-injection?view=aspnetcore-2.0#registering-services
http://www.tutorialsteacher.com/ioc/introduction
https://blog.csdn.net/fly_zxy/article/details/79051215
http://www.cnblogs.com/scofi/articles/5939501.html
http://dotnetfresh.cnblogs.com/archive/2005/06/27/181878.html
http://www.cnblogs.com/liuhaorain/p/3747470.html
Spirng中的实现:
https://www.jianshu.com/p/6c359768b1dc
https://blog.csdn.net/u013430196/article/details/48290749
http://www.cnblogs.com/f1194361820/p/3906394.html
https://www.cnblogs.com/ITtangtang/p/3978349.html#a1