string(240) "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%E5%B7%A5%E4%BD%9C%E6%9C%89%E5%89%8D%E6%99%AF%E4%B9%88 => Failed to connect to 101.89.159.206 port 38187: Connection refused"
地推工作有前景么
