地址查询: http://www.github.com.ipaddress.com/ /etc/hosts/
140.82.113.3 github.com
192.30.253.113 www.github.com 参考
github host地址查询地址查询: http://www.github.com.ipaddress.com/ /etc/hosts/
140.82.113.3 github.com
192.30.253.113 www.github.com 参考
github host地址查询![github学习（一）[图]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)