mysql: [Warning] Using a password on the command line interface can be insecure. ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)

错误情况

解决办法：

首先查看mysql的命令

其次修改root用户的密码 set password for 'root'@'localhost' = password('123456');

最后退出mysql，用新的用户名和密码登入即可