string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%BD%91%E4%B8%8A%E6%89%BE%E5%AE%A2%E6%88%B7%E6%9C%89%E4%BB%80%E4%B9%88%E6%B8%A0%E9%81%93 => Failed to connect to 101.89.117.144 port 38076: Connection refused"
网上找客户有什么渠道
