1.找到hosts的文件
路径：C:WindowsSystem32driversetchosts
2.打开 选择记事本开始编辑
3.将以下内容添加进去并保存（Ctrl+S）
# Github
151.101.44.249 github.global.ssl.fastly.net
192.30.253.113 github.com
103.245.222.133 assets-cdn.github.com
23.235.47.133 assets-cdn.github.com
203.208.39.104 assets-cdn.github.com
204.232.175.78 documentcloud.github.com
204.232.175.94 gist.github.com
107.21.116.220 help.github.com
207.97.227.252 nodeload.github.com
199.27.76.130 raw.github.com
107.22.3.110 status.github.com
204.232.175.78 training.github.com
207.97.227.243 www.github.com
185.31.16.184 github.global.ssl.fastly.net
185.31.18.133 avatars0.githubusercontent.com
185.31.19.133 avatars1.githubusercontent.com
192.30.253.120 codeload.github.com
4.打开cmd（win键+R）
5.刷新DNS
命令：ipconfig /flushdns
这样就完成了，速度会快多了