MySQL login error prompts ERROR 1045 solution

Environment: CentOS7 MySQL5.7

mysql -uroot -p, and then prompt after entering the password
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)

• stop mysql service
  sudo systemctl mysqld stop

• Skip verification
  Edit mysql configuration file
  sudo vim /etc/my.cnf

  Add a line at the end to make it skip the permission check when logging in
  skip_grant_tables

• Change the password and
  start the MySQL service,
  sudo systemctl mysqld start

  Login to MySQL
  mysql -uroot -p

  At this point, you are prompted to enter a password, enter any password and press Enter to enter MySQL.

  Switch the database to the mysql library
  mysql>USE mysql;

  change Password
  mysql>update user set authentication_string = password(‘newpasswd’) where user='root';

  Refresh MySQL privilege-related tables
  mysql>flush privileges;

  quit
  mysql>exit;

• Restart the service Delete or comment the skip permission statement added in
  the my.cnf file

  Restart the service and log in with the modified password.
  sudo systemctl mysqld restart