string(234) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=inux%E4%B8%A4%E5%8F%B0%E7%94%B5%E8%84%91%E7%9B%B4%E8%BF%9E%E4%BC%A0%E6%95%B0%E6%8D%AE => Received HTTP code 403 from proxy after CONNECT"
inux两台电脑直连传数据
