Mysql 创建用户 语法： CREATE USER 'username'@'host' identified by 'password'; 例子： CREATE USER 'test'@'localhost' identified by 'test123'; 用户权限授予 语法： GRANT 权限1，权限2，....权限n ON dbname.* TO 'username'@'host' identified by 'password'; 例子： 1.GRANT SELECT,UPDATE ON test.* to 'test'@'%' identified by 'test123'; //授