这是本文档旧的修订版!
https://segmentfault.com/a/1190000041350693?utm_source=sf-similar-article
https://github.com/spesmilo/electrum
https://github.com/walkor/php-http-proxy
https://segmentfault.com/a/1190000041555032
https://open.dingtalk.com/document/resourcedownload/http-intranet-penetration