1、连接服务器: mysql -u root -p
2、看当前所有数据库:show databases;
3、进入mysql数据库:use mysql;
4、查看mysql数据库中所有的表:show tables...;
5、查看user表中的数据:select Host, User,Password from user;
6、修改user表中的Host:update user set Host=‘%’ where...User=‘root’;
 或者INSERT INTO mysql.user (Host, User, Select_priv, Insert_priv, Update_priv, Delete_priv...’, ‘Y’, ‘Y’, ‘Y’, ‘Y’, ‘Y’, ‘Y’, ‘Y’, ‘Y’, ‘Y’, ‘Y’, ‘Y’, ‘Y’, ‘’, ‘’, ‘’, ‘’, ‘0’, ‘0’, ‘0’, ‘0’, ‘mysql_native_password