1.彻底卸载mysql8
https://blog.youkuaiyun.com/qq_36089832/article/details/102008206
2.修改加密规则并重置密码
修改加密规则: ALTER USER 'root'@'localhost' IDENTIFIED BY 'datacvg123' PASSWORD EXPIRE NEVER;
重新修改密码: ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'datacvg123';
刷新 : FLUSH PRIVILEGES;