Qt Model/View理解（一）---构造model
https://blog.csdn.net/weixin_42303052/article/details/89233887
Qt Model/View理解（三）---桥梁Delegate
https://blog.csdn.net/lutao614/article/details/80881800
Qt Model/View理解（四）---实战
https://blog.csdn.net/lutao614/article/details/80902460