Solution

参考教程

1、进入mysql

mysql -u root -p 

2、依次输入如下指令

ALTER USER ‘root‘@‘localhost‘ IDENTIFIED BY ‘password‘ PASSWORD EXPIRE NEVER; #修改加密规则 
ALTER USER ‘root‘@‘localhost‘ IDENTIFIED WITH mysql_native_password BY ‘password‘; #更新一下用户的密码
FLUSH PRIVILEGES; #刷新权限
alter user ‘root‘@‘localhost‘ identified by ‘xzx123456‘;#重置密码，xzx123456就是变更后的密码，自己的密码自己更改下哦

3.修改密码，后重新连接SQL_yog

SQLyog | 连接数据库报错plugin caching_sha2_password could not be loaded