MySQLERROR 1045 (28000)与ERROR 2002 (HY000)问题解决方法

首先是我遇到的问题是：Access denied for user ‘root’@’localhost’ (using password: YES)，安照网上的方法：

[root@www ~]# mysql -u root -p
Enter password:
ERROR 1045 (28000): Access deniedforuser 'root'@'localhost'(usingpassword: YES)[root@www ~]#/etc/init.d/mysql stop[root@www ~]# mysqld_safe --user=mysql --skip-grant-tables --skip-networking & [root@www ~]# mysql -u root mysql mysql> UPDATE user SET Password=PASSWORD('newpassword') where USER='root' mysql> FLUSH PRIVILEGES; mysql> quit # /etc/init.d/mysql restart # mysql -uroot -p[root@www ~]# mysql -u root -p      #关闭服务后又出现如下问题Enter password: ERROR 2002 (HY000): Can'tconnecttolocal MySQL server through socket'/tmp/mysql.sock'(2)这一步我结合网上的例子：[root@www ~]#ps -ef|grepmysql显示类似：root  18232        00:00:023 mysqld_safemysql  18543        00:00:33 mysqld[root@www ~]#kill -918232[root@www ~]#kill -918543[root@www ~]#/etc/init.d/mysql restart[root@www ~]# mysql -u root -p          ------>重新进入Enter password:Welcome tothe MySQL monitor. Commandsendwith ; or\g.Your MySQL connection id is2Server version: 5.1.73 Source distributionCopyright (c) 2000, 2013, Oracleand/orits affiliates.Allrights reserved.Oracle isa registered trademarkofOracle Corporationand/oritsaffiliates. Other names may be trademarksoftheir respectiveowners.Type 'help;'or'\h' for help. Type '\c'toclear the currentinput statement.mysql>