第一步:打开/etc/hosts文件
 linux vim /etc/hosts
第二步:文件拉到最下面,输入以下内容
 ``linux
 #GitHub Start
 140.82.113.3 github.com
 140.82.114.20 gist.github.com
 151.101.184.133 assets-cdn.github.com
 151.101.184.133 raw.githubusercontent.com
 151.101.184.133 gist.githubusercontent.com
 151.101.184.133 cloud.githubusercontent.com
 151.101.184.133 camo.githubusercontent.com
 151.101.184.133 avatars0.githubusercontent.com
 199.232.68.133 avatars0.githubusercontent.com
 199.232.28.133 avatars1.githubusercontent.com
 151.101.184.133 avatars1.githubusercontent.com
 151.101.184.133 avatars2.githubusercontent.com
 199.232.28.133 avatars2.githubusercontent.com
 151.101.184.133 avatars3.githubusercontent.com
 199.232.68.133 avatars3.githubusercontent.com
 151.101.184.133 avatars4.githubusercontent.com
 199.232.68.133 avatars4.githubusercontent.com
 151.101.184.133 avatars5.githubusercontent.com
 199.232.68.133 avatars5.githubusercontent.com
 151.101.184.133 avatars6.githubusercontent.com
 199.232.68.133 avatars6.githubusercontent.com
 151.101.184.133 avatars7.githubusercontent.com
 199.232.68.133 avatars7.githubusercontent.com
 151.101.184.133 avatars8.githubusercontent.com
 199.232.68.133 avatars8.githubusercontent.com
GitHub End
``
 保存退出
 
 然后就可以正常下载了
 