string(247) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%A6%82%E4%BD%95%E6%89%BE%E9%A3%8E%E6%8A%95%E5%85%AC%E5%8F%B8%E5%90%88%E4%BD%9C => Failed to connect to 14.18.117.71 port 38041: Connection refused"
如何找风投公司合作
