string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%94%80%E5%94%AE%E9%83%BD%E6%98%AF%E6%80%8E%E4%B9%88%E6%89%BE%E5%AE%A2%E6%88%B7%E7%9A%84 => Failed to connect to 101.89.117.144 port 38022: Connection refused"
销售都是怎么找客户的
