string(231) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%85%AC%E5%8F%B8%E4%B8%8A%E5%B8%82%E7%9A%84%E8%A6%81%E6%B1%82 => Failed to connect to 101.89.159.206 port 38100: Connection refused"
公司上市的要求
