mysql登录报错“Access denied for user 'root'@'localhost' (using password: YES”的处理方法

http://alsww.blog.51cto.com/2001924/1121676

方法一： 

# /etc/init.d/mysqld stop 

# mysqld_safe --user=mysql --skip-grant-tables --skip-networking & 

# mysql -u root mysql 

mysql> UPDATE user SET Password=PASSWORD(’newpassword’) where USER=’root’; 

mysql> FLUSH PRIVILEGES; 

mysql> quit 

# /etc/init.d/mysqld restart 

# mysql -uroot -p 

Enter password: <输入新设的密码newpassword> 

mysql>