string(294) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%9C%89%E9%A1%B9%E7%9B%AE%E6%89%BE%E6%8A%95%E8%B5%84%E5%85%AC%E5%8F%B8%E9%9C%80%E8%A6%81%E5%87%86%E5%A4%87%E4%BB%80%E4%B9%88 => Failed to connect to 101.89.159.206 port 38087: Connection refused"
有项目找投资公司需要准备什么
