string(243) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=inux%E6%8B%B7%E8%B4%9D%E5%8F%A6%E4%B8%80%E5%8F%B0%E7%94%B5%E8%84%91%E7%9A%84%E6%96%87%E4%BB%B6 => Received HTTP code 403 from proxy after CONNECT"
inux拷贝另一台电脑的文件
