博客：
vs2013连接MySql教程
https://www.cnblogs.com/joeblackzqq/p/4332945.html
安装MySQL Connector/C++：
https://blog.csdn.net/sunylat/article/details/8480127
有注释版本
https://blog.csdn.net/a19990412/article/details/83617923
https://blog.csdn.net/yuhan61659/article/details/82712688
https://blog.csdn.net/hbtj_1216/article/details/51168596