string(282) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%8E%9F%E5%A7%8B%E8%82%A1%E5%88%B0%E4%B8%8A%E5%B8%82%E9%9C%80%E8%A6%81%E5%A4%9A%E4%B9%85%E6%89%8D%E8%83%BD%E5%8D%96 => Failed to connect to 14.18.46.51 port 38206: Connection refused"
原始股到上市需要多久才能卖
