通过yum安装的mysql,启动和增加数据库,增加数据如下: [root@wucl-4 lib]# systemctl start mariadb [root@wucl-4 lib]# mysql -uroot Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 2 Server version: 5.5.52-MariaDB MariaDB Server Copyrig