string(294) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B6%88%E9%98%B2%E4%B8%AD%E6%8E%A7%E5%88%9D%E7%BA%A7%E8%AF%81%E6%98%AF%E4%B8%8D%E6%98%AF%E4%B8%8D%E8%83%BD%E7%94%A8%E4%BA%86 => Failed to connect to 101.89.143.195 port 38175: Connection refused"
消防中控初级证是不是不能用了
