1. 推荐使用switchhost软件如没有也可以修改 C:\Windows\System32\drivers\etc\hosts

    2. 插入以下信息

      1. 185.199.108.154              github.githubassets.com
      2. 140.82.112.21                central.github.com
      3. 185.199.108.133              desktop.githubusercontent.com
      4. 185.199.108.153              assets-cdn.github.com
      5. 185.199.108.133              camo.githubusercontent.com
      6. 185.199.108.133              github.map.fastly.net
      7. 199.232.69.194               github.global.ssl.fastly.net
      8. 140.82.114.4                 gist.github.com
      9. 185.199.108.153              github.io
      10. 140.82.112.3                 github.com
      11. 140.82.114.5                 api.github.com
      12. 185.199.108.133              raw.githubusercontent.com
      13. 185.199.108.133              user-images.githubusercontent.com
      14. 185.199.108.133              favicons.githubusercontent.com
      15. 185.199.108.133              avatars5.githubusercontent.com
      16. 185.199.108.133              avatars4.githubusercontent.com
      17. 185.199.108.133              avatars3.githubusercontent.com
      18. 185.199.108.133              avatars2.githubusercontent.com
      19. 185.199.108.133              avatars1.githubusercontent.com
      20. 185.199.108.133              avatars0.githubusercontent.com
      21. 185.199.108.133              avatars.githubusercontent.com
      22. 140.82.113.9                 codeload.github.com
      23. 52.216.171.43                github-cloud.s3.amazonaws.com
      24. 52.217.33.196                github-com.s3.amazonaws.com
      25. 52.216.93.147                github-production-release-asset-2e65be.s3.amazonaws.com
      26. 52.216.93.147                github-production-user-asset-6210df.s3.amazonaws.com
      27. 52.217.207.33                github-production-repository-file-5c1aeb.s3.amazonaws.com
      28. 185.199.108.153              githubstatus.com
      29. 64.71.144.211                github.community
      30. 185.199.108.133              media.githubusercontent.com
      31. 185.199.108.133              objects.githubusercontent.com
      32. 185.199.108.133              raw.github.com

    3. cmd输入 ipconfig /flushdns