ERROR 1862

ERROR 1862 (HY000): Your password has expired. To log in you must

change it using a client that supports expired passwords.

原因是：

MySQL 5.6 introduces password-expiration capability, to enable database administrators to expire account passwords and require users to reset their password. 

所以只需重新修改下密码即可，修改方式如下：

mysql -u root -p 再输入密码

然后更改密码：

SET PASSWORD = PASSWORD('root');

OK,可以正常使用了。