1.登錄mysql

# mysql -u root -p

然后輸入密碼

2.使用mysql 數據庫

use mysql;

3.添加一個用戶 test 并授權通過本地機（localhost)訪問，密碼"password"。

grant all privileges on *.* to test@localhost identified by 'password' with grant option;

4. 刷新剛才的內容*

flush privileges;

5.查看用戶

select host,user from mysql.user;