只允许本地IP访问
create user 'test'@'localhost' identified by '123456';
允许外网IP访问
create user 'test'@'%' identified by '123456';刷新授权
flush privileges;
2.为用户创建数据库
create database test DEFAULT CHARSET utf8 COLLATE utf8_general_ci;
3.为用户分配权限
授予用户通过外网IP操作该数据库的所有去权限
grant all privileges on `testdb`.* to 'test'&'%' identified by '123456';
授予用户通过外网IP操作所有数据库的权限
grant all privileges on *.* to 'test'&'%' identified by '123456';
刷新授权
flush privileges;