在C:WindowsSystem32driversetc文件夹下HOSTS里面最后添加：
192.30.253.112 github.com
192.30.253.113 github.com
192.30.253.119 gist.github.com
151.101.185.194 github.global.ssl.fastly.net
151.101.100.133 assets-cdn.github.com
151.101.100.133 raw.githubusercontent.com