# /etc/init.d/mysql stop
# mysqld_safe --user=mysql --skip-grant-tables --skip-networking &# mysql -u root mysqlmysql> UPDATE user SET Password=PASSWORD('newpassword') where USER='root';mysql> FLUSH PRIVILEGES;mysql> quit# /etc/init.d/mysql restart
# mysql -uroot -pEnter password: <输入新设的密码newpassword>