string(243) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=inux%E6%9C%8D%E5%8A%A1%E5%99%A8%E5%A4%8D%E5%88%B6%E6%96%87%E4%BB%B6%E5%88%B0%E6%9C%AC%E5%9C%B0 => Received HTTP code 403 from proxy after CONNECT"
inux服务器复制文件到本地
