Centos 7安装MySQL8.0.19首先卸载MySQL看下已经安装的包有没有m'y's'q  yum list installedyum remove mysql下载MySQLserver、client还有libs和common使用wget 命令下载rpm wget https://mirrors.tuna.tsinghua.edu.cn/mysql/yum/mysql-8.0-community-el7-x86_64/mysql-community-server-8.0.19-1.el7.x86_64.rpm wget https://mirrors.tuna.tsinghua.edu...