2.在檢測輸入欄中輸入github.com
3.打開host文件，地址 c:\windows\system32\drivers\etc
把檢測列表里的TTL值最小的IP輸入到hosts里，并對應寫上域名github.com
4.重復以上步驟，查找其他域名
示例代碼：
# GitHub Start
192.30.255.112 github.com
104.244.46.185 github.global.ssl.fastly.net
185.199.108.133 raw.githubusercontent.com
185.199.108.133 gist.githubusercontent.com
185.199.108.133 cloud.githubusercontent.com
185.199.108.133 camo.githubusercontent.com
185.199.108.133 avatars.githubusercontent.com
185.199.108.133 avatars0.githubusercontent.com
185.199.108.133 avatars1.githubusercontent.com
185.199.108.133 avatars2.githubusercontent.com
185.199.108.133 avatars3.githubusercontent.com
185.199.108.133 avatars4.githubusercontent.com
185.199.108.133 avatars5.githubusercontent.com
185.199.108.133 avatars6.githubusercontent.com
185.199.108.133 avatars7.githubusercontent.com
185.199.108.133 avatars8.githubusercontent.com
# GitHub End
