SQLyog连接数据库报错plugin caching_sha2_password could not be loaded
打开cmd:mysql -uroot -p
进入mysql: use mysql
依次执行下面语句
ALTER USER 'root'@'localhost' IDENTIFIED BY '自己的密码' PASSWORD EXPIRE NEVER; #修改加密规则
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '自己的密码'; #更新一下用户的密码