string(277) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%82%A1%E7%A5%A8%E5%89%8D%E5%8A%A0%E4%BA%86%E4%B8%80%E4%B8%AAxd%E4%BB%80%E4%B9%88%E6%84%8F%E6%80%9D%E5%91%80 => Failed to connect to 101.91.112.32 port 38195: Connection refused"
股票前加了一个xd什么意思呀
