解决mysql：ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO/YES)
https://blog.csdn.net/zzhongcy/article/details/97278032
https://www.cnblogs.com/Kitty-/p/11632551.html
mysql服务启动后，按上述链接中步骤，输入命令没反应
在后面加\g
MySQL报错问题:2509
2.更改加密方式
ALTER USER 'root'@'localhost' IDENTIFIED BY 'password' PASSWORD EXPIRE NEVER; #更改加密方式
3.更改密码
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '新密码'; #更新用户密码
4.刷新更改
FLUSH PRIVILEGES; #刷新权限
