[参考来源]（https://cloud.tencent.com/developer/article/1426844
）

第二步：

修改hosts最新追加地址：
'''

github related website

192.30.253.112 github.com

151.101.185.194 github.global.ssl.fastly.net
192.30.253.119 gist.github.com
185.199.109.153 desktop.github.com
185.199.108.153 guides.github.com
185.199.108.153 blog.github.com
185.199.108.153 developer.github.com
185.199.108.153 services.github.com
192.30.253.175 enterprise.github.com
185.199.108.153 pages.github.com
34.196.237.103 classroom.github.com
185.199.108.153 pages.github.com
34.196.237.103 classroom.github.com
'''

第三步

运行 ipconfig /flushdns 刷新 dns 缓存.