string(284) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%9C%B0%E6%8E%A8%E8%A6%81%E6%80%8E%E4%B9%88%E5%81%9A%E6%89%8D%E8%83%BD%E5%90%B8%E5%BC%95%E5%88%B0%E5%AE%A2%E6%88%B7 => Failed to connect to 101.91.112.32 port 38221: Connection refused"
地推要怎么做才能吸引到客户
