string(284) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%BD%91%E7%BB%9C%E5%85%AC%E5%8F%B8%E7%94%B5%E8%AF%9D%E9%94%80%E5%94%AE%E6%98%AF%E5%81%9A%E4%BB%80%E4%B9%88%E7%9A%84 => Failed to connect to 101.91.112.32 port 38221: Connection refused"
网络公司电话销售是做什么的
