string(274) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%96%B0%E8%82%A1%E7%94%B3%E8%B4%AD%E9%9C%80%E8%A6%81%E5%BC%80%E9%80%9A%E7%A7%91%E5%88%9B%E6%9D%BF%E5%90%97 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
新股申购需要开通科创板吗
