string(274) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B9%B0%E8%82%A1%E7%A5%A8%E9%9C%80%E8%A6%81%E5%BC%80%E9%80%9A%E4%BB%80%E4%B9%88%E8%BD%AF%E4%BB%B6%E5%91%A2 => Failed to connect to 14.116.215.7 port 38230: Connection refused"
买股票需要开通什么软件呢
