1、停用MySQL服务：# /etc/rc.d/init.d/MysqLd stop

2、输入命令：# MysqLd_safe --user=MysqL --skip-grant-tables --skip-networking &

3、登入数据库：# MysqL -u root MysqL

4、MysqL> use MysqL;结果如下：

Database changed

5、MysqL> UPDATE user SET Password=PASSWORD('newpassword')where USER='newuser';

结果如下：

Query OK,3 rows affected (0.00 sec)

Rows matched: 3 Changed: 3 Warnings: 0

MysqL> FLUSH PRIVILEGES;

MysqL> quit

# /etc/init.d/MysqLd restart

# MysqL -unewuser–p

Enter password:newpassword

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