0. 建立数据库mydbjava
create database mydb;
1. 建立一个用户user01数据库
create user user01;
2. 用户受权code
grant all on mydb.* to user01@"%" IDENTIFIED BY "123456";
% ,表明任何ipip
IDENTIFIED BY "123456" ,表明设置密码为123456class
3. 查看受权状况密码
show grants for user01@"%";