cd C:\mysql-8.0.12-winx64\bin
mysqld --initialize-insecure --user=mysql --console
mysqld install
net start mysql
pause
echo use mysql;>in.txt
echo update user set authentication_string='' where user='root'; >>in.txt
echo ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '123456';>>in.txt
echo FLUSH PRIVILEGES;>>in.txt
mysql -u root <in.txt