Mysql denied for user 'odbc@localhost' || denied for user 'root@localhost'

1. Question Description:

    1.1  mysql  version:  mysql-5.7.11-win64.zip

    1.2  if you connect to the mysql  service the first time, you may come across some problems

          1.2.1  mysql -u root -p (enter), no password(enter), you will see

          1.2.2   if you want to update the user's password like "update user set password=.....", you will see

   2. Solution:

       2.1 net stop mysql(stop the mysql service)

       2.2 mysqld -nt --skip-grant-tables (you will see cusor is waiting, it's ok,)

       open another cmd window

       2.3 mysql

       2.4

             mysql>use mysql

             mysql>update user set password=password("123456") where user="root";

             mysql>flush privileges;

　　　　　　　mysql>exit

  　　  2.5  net start mysql

　　    2.6  mysql -u root -p

        2.7 set password=password("123456");

  3. Thinking

          I had meet the problem before, but forget how to set it,

          That's mean Writing is better than Minding.