错误一： fatal: unable to access 'github.com/yetToBeTest…': Failed to connect to github.com port 443 after 21087 ms: Couldn't connect to server
解决办法：打开系统设置->搜索代理->代理服务器->查看手动设置代理的地址(127.0.0.1)和端口(7890)。 然后执行git config --global http.proxy http://127.0.0.1:7890
