cd D:Program FilesMySQLMySQL Server 5.5innet stop mysqlmysqld --skip-grant-tables<2>.在第二个“命令行窗口”输入:
cd D:Program FilesMySQLMySQL Server 5.5inmysql -uroot -pmysql> update mysql.user set password=PASSWORD("新密码") where User="root";mysql> flush privileges;mysql> exitnet start mysql