如果只是github的话，可以在https://www.ipaddress.com/查找响应快的地址 208.101.60.87 github.global.ssl.fastly.net 52.74.223.119 github.com 199.232.68.133 raw.githubusercontent.com 199.232.68.133 user-images.githubusercontent.com 199.232.68.133 avatars2.githubusercontent.com 199.232.68.133 avatars1.githubusercontent.com