string(267) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%A6%81%E6%80%8E%E4%B9%88%E5%88%9B%E4%B8%9A%E5%9B%9E%E7%AD%94%E5%AE%A2%E6%88%B7%E9%97%AE%E9%A2%98 => Failed to connect to 101.89.159.206 port 38187: Connection refused"
要怎么创业回答客户问题
