修改 hosts
“`
199.232.68.133 camo.githubusercontent.com
199.232.68.133 github.map.fastly.net
199.232.68.133 raw.githubusercontent.com
199.232.68.133 avatars5.githubusercontent.com
199.232.68.133 avatars4.githubusercontent.com
199.232.68.133 avatars3.githubusercontent.com
199.232.68.133 avatars2.githubusercontent.com
199.232.68.133 avatars1.githubusercontent.com
199.232.68.133 avatars0.githubusercontent.com
“`