我之前已经
mysql> GRANT ALL PRIVILEGES ON *.* TO ‘root‘@‘%‘ IDENTIFIED BY ‘root‘ WITH GRANT OPTION;
Query OK, 0 rows affected (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
然后navicat连不上，本地连不上，于是我直接改了密码，ok连上
原文：https://www.cnblogs.com/daysn/p/13396314.html