--安装包官网下载地址:https://dev.mysql.com/downloads/mysql/5.7.html#downloads
--安装教程参见:https://www.cnblogs.com/rysinal/p/7565259.html
--授权连接参见:https://www.cnblogs.com/jesu/p/7405528.html
--安装版完整卸载参见:https://www.cnblogs.com/qianzf/p/8302272.html
--绿色版安装卸载参见:https://blog.csdn.net/mr_green1024/article/details/53222526(https://blog.csdn.net/sinat_38347209/article/details/81264441)