下载MySql

下载mysql

https://downloads.mysql.com/archives/community/

1.配置环境变量

在path 里面也配置 %MYSQL_HOME%\bin

2.设置密码 先登录 root

mysql -u root -p

set password for root@localhost = password('123456789');

3.查询host

select host from user where user='root';

4.更新 

update user set host = '%'  where user ='root';