wget http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm
rpm -ivh mysql-community-release-el7-5.noarch.rpm
yum install mysql-community-server -y
systemctl start mysqld.service
systemctl status mysqld.service

这里会提示输入密码,直接跳过即可
mysql -u root -p # 回车后会提示输入密码

密码要设计的尽量复杂,字母大小写,特殊字符,数字等,至少8位。
create user 'root'@'%' identified by 'Xc@2021';
grant all privileges on *.* to 'root'@'%' with grant option;
flush privileges;
quit;



