string(248) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%AD%A6%E7%BE%8E%E5%B7%A5%E4%BB%A5%E5%90%8E%E8%83%BD%E5%B9%B2%E4%BB%80%E4%B9%88%E5%B7%A5%E4%BD%9C => Received HTTP code 403 from proxy after CONNECT"
学美工以后能干什么工作
