MySQL5.7密码正确却无法本地登录，ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)

报错如下：

ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)

解决方法：

1，vim /etc/my.cnf，在[mysql]下面加上skip-grant-tables，重启mysqld，并用空密码进入，mysql -uroot -p 回车两次

2，alter user ‘root’@‘localhost’ identified by ‘密码’;
ERROR 1290 (HY000): The MySQL server is running with the --skip-grant-tables option so it cannot execute this statement

3,需要刷新配置，输入flush privileges;然后可以修改密码了

4，set password for root@localhost=‘密码’;