获取几个ip,而后配置本地hosts

1.https://github.com.ipaddress....

140.82.113.4 github.com

2.https://fastly.net.ipaddress....

199.232.69.194 github.global.ssl.fastly.net

3.https://github.com.ipaddress....
185.199.108.153 assets-cdn.github.com
185.199.109.153 assets-cdn.github.com
185.199.110.153 assets-cdn.github.com
185.199.111.153 assets-cdn.github.com

刷新本地dns缓存

windows: ipconfig/flushdns