一、navicat for mysql 连接mysql时候出现如下错误：

 

 解决办法: 更改加密方式；

1.以root账户用户登录Mysql： PS C:\Users\Dingzg-Pro> mysql -u root -p   2.更改加密方式： mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'password' PASSWORD EXPIRE NEVER; Query OK, 0 rows affected (0.10 sec) 3.更改密码： mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '新密码'; Query OK, 0 rows affected (0.35 sec) 4.刷新： mysql> FLUSH PRIVILEGES; Query OK, 0 rows affected (0.28 sec)