话不多说直接开始教程：

1.打开C:\Windows\System32\drivers\etc 路径下的的hosts文件

在hosts文件内加上如下内容并保存

140.82.114.4 github.com
140.82.114.4 gist.github.com
185.199.108.153 assets-cdn.github.com
151.101.64.133 raw.githubusercontent.com
151.101.108.133 gist.githubusercontent.com
151.101.108.133 cloud.githubusercontent.com
151.101.108.133 camo.githubusercontent.com
151.101.108.133 avatars0.githubusercontent.com
151.101.108.133 avatars1.githubusercontent.com
151.101.108.133 avatars2.githubusercontent.com
151.101.108.133 avatars3.githubusercontent.com
151.101.108.133 avatars4.githubusercontent.com
151.101.108.133 avatars5.githubusercontent.com
151.101.108.133 avatars6.githubusercontent.com
151.101.108.133 avatars7.githubusercontent.com
151.101.108.133 avatars8.githubusercontent.com

如果无法编辑，鼠标右键打开文件属性将“只读”取消勾选并应用保存

Win+R打开运行框，输入cmd打开命令窗口，输入ipconfig/flushdns命令会提示以下信息

然后就可以愉快的访问Github了！