ERROR 1045 (28000): Access denied for user ‘ODBC‘@‘localhost‘ (using password: NO)

Version problems may cause some other unnecessary problems during development , therefore According to the study will
MySQL Version changed to 5.7;
After downloading the installation package on the official website , install ---->
Configure environment variables , take bin Directory configuration to Path in , Configure environment variables ---->
in service , Put the previous MySQL Process shutdown , Open the new process ----->

Now open cmd Command input mysql error

ERROR 1045 (28000): Access denied for user 'ODBC'@'localhost' (using password: NO)

solve ：

after Input mysqld install
The discovery is still the previous version
Enter the following command ： Remove the previously installed mysql

sc delete mysql

After deleting , Input again mysqld install
That is, the current version is installed
Then open the cmd command ：
mysql -hlocalhost -uroot -p enter Input password

That's all right.