string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%89%BE%E6%8A%95%E8%B5%84%E4%BA%BA%E9%9C%80%E8%A6%81%E4%BB%80%E4%B9%88%E6%9D%A1%E4%BB%B6 => Failed to connect to 101.89.159.206 port 38075: Connection refused"
找投资人需要什么条件
