ing a password on the command line interface can be insecure.
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mysql>
其实我们还可以直接使用update语句来修改user这个表，但是我们需要使用flush privileges;来让它立即生效：
mysql> update mysql.user set password = password('nan') where user = 'test';
Query OK, 1 row affected (0.05 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> flush privileges;
Query OK, 0 rows affected (0.03 sec)
然后我们就可以用'nan‘这个密码登录了，我这里就不给出演示代码了，毕竟很简单的操作，我是辛星，求支持。