string(296) "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%E4%B8%BB%E6%9C%BA%E4%B9%8B%E9%97%B4%E6%8B%B7%E8%B4%9D%E6%96%87%E4%BB%B6%E6%80%8E%E4%B9%88%E6%93%8D%E4%BD%9C => Failed to connect to 14.18.117.71 port 38069: Connection refused"
inux两台主机之间拷贝文件怎么操作
