string(267) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%BE%B7%E9%82%A6%E7%89%A9%E6%B5%81%E6%98%AF%E5%9B%BD%E4%BC%81%E8%BF%98%E6%98%AF%E6%B0%91%E4%BC%81 => Failed to connect to 125.88.227.171 port 38062: Connection refused"
德邦物流是国企还是民企
