问mysql拒绝对数据库的新用户访问

EN

SELECT user, host, plugin FROM mysql.user;

# user  host    plugin
root    localhost   mysql_native_password
root    127.0.0.1   mysql_native_password
root    ::1 mysql_native_password
newuser localhost   mysql_native_password

GRANT ALL PRIVILEGES ON * . * TO 'newuser'@'localhost';
FLUSH PRIVILEGES;
SHOW GRANTS FOR 'newuser'@'localhost';

GRANT ALL PRIVILEGES ON *.* TO 'newuser'@'localhost' IDENTIFIED BY PASSWORD '*...'

use db;