string(262) "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%E6%9C%8D%E5%8A%A1%E5%99%A8%E4%B9%8B%E9%97%B4%E4%BC%A0%E6%96%87%E4%BB%B6 => Failed to connect to 101.89.117.144 port 38076: Connection refused"
inux两台服务器之间传文件
