How to Solve ERROR 1045 during mysql Logon

In Windows, the following ERROR occurs during mysql Logon: ERROR 1045: Access denied for user: 'root @ localhost' (Using password: YES)

I found some solutions from the Internet and finally got a solution. Now I want to record the specific solution:
Copy codeThe Code is as follows:
C: \> SC stop mysql
C: \> mysqld -- defaults-file = "C: \ MySQL \ MySQLServer6.0 \ my. ini" -- console -- skip-grant-tables

Re-open a cmd
Copy codeThe Code is as follows:
C: \> mysql-uroot-p
Enter password: <-enter
Mysql> UPDATE user SET Password = PASSWORD ('newpassword') where USER = 'root ';
Mysql> flush privileges;
Mysql> quit