1、问题现象：https链接克隆代码报错
unable to access 'https://xxx/': Received HTTP code 504 from proxy after CONNECT
解决办法：
Windows
SET HTTP_PROXY=
SET HTTPS_PROXY=
git config --global --unset http.proxy
git config --global --unset https.proxy
git clone http://yourUser@stashAddress:stashPort/apptest.git
Linux
unset HTTP_PROXY
unset HTTPS_PROXY
git config --global --unset http.proxy
git config --global --unset https.proxy
git clone http://yourUser@stashAddress:stashPort/apptest.git
参考链接：stackoverflow.com/questions/3…
2、问题现象：SSL certificate problem: unable to get local issuer certificate
解决办法：
git config --global http.sslVerify false
3、问题现象：fatal: unable to connect to github.com
解决办法：
git config --global url.https://github.com/.insteadOf git://github.com/
