1、首先: 若之前装过mysql请先删除再进行安装: Centos彻底卸载Mysql 2、安装wget yum -y install wget 3、下载mysql的源 wget http://dev.mysql.com/get/mysql57-community-release-el7-7.noarch.rpm 4、安装yum库 yum localinstall -y mysql57-community-release-el7-7.noarch.rpm 5、安装MySQL yum install -y mysql-community-server 6、启动MySQL服务 s