mysql开启远程访问

进入
mysql -uroot -h127.0.0.1-p
use mysql

新增一个用户

create user user02@'%' identified by 'password'

设置某个用户权限：update user set host='%' where user='yuancheng' and host='127.0.0.1';

flush privileges;

关闭授权
mysql -uroot -h127.0.0.1 -p
update user set host='127.0.0.1' where user='yuancheng' and host='%';

FLUSH PRIVILEGES;

exit; 退出