# vim /etc/my.cnf //编辑mysql主配置文件
在[mysqld]字段下加入:skip-grant
# service mysqld restart //重启数据库服务
# /usr/local/mysql/bin/mysql –uwyc //免密码进入数据库
mysql> use mysql;
mysql> update user set password=password('wyc1042160143') where user='wyc';
mysql> flush privileges;
mysql> quit;
# vim /etc/my.cnf //编辑mysql主配置文件,在[mysqld]字段下去掉:skip-grant
# service mysqld restart