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';
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