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1¡¢Í£Ö¹MYSQL·þÎñÆ÷£º
      /etc/init.d/mysql stop»òservice mysqld stop
2.  cd /etc/init.d/
£¨3£©Ìø¹ýÊÚȨ±íÖ´ÐÐMYSQL·þÎñÆ÷£º
               mysqld_safe --skip-grant-tables --skip-networking &
        (×¢£º²ÎÊý--skip-grant-tablesΪÌø¹ýÊÚȨ±í£»--skip-networkingΪ²»¼àÌýTCP/IPÁ¬½Ó)
     [root@speedec init.d]#  mysqld_safe --skip-grant-tables --skip-networking &
    [1] 28135
    [root@speedec init.d]# Starting mysqld daemon with databases from /var/lib/mysql
    ÔÚ´Ë¿ÉÒÔCtrl+CÖÕÖ¹
(4).Æô¶¯mysql
[root@speedec init.d]# mysql
(5)ʹÓÃmysqlÊý¾Ý¿â
 mysql> use mysql;
£¨6£©¸üÐÂrootÃÜÂë
         update user set password=password('ÐÂÃÜÂë') where user='root';
7.ÖØÆômysql
service mysqld stop
service mysqld start