string(239) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%BE%8E%E5%85%83%E5%A4%A7%E6%B6%A8%E5%AF%B9a%E8%82%A1%E5%BD%B1%E5%93%8D => Failed to connect to 61.171.74.35 port 38041: Connection refused"
美元大涨对a股影响
