string(292) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%85%92%E5%BA%97%E6%89%93%E5%8D%B0%E8%B4%A6%E5%8D%95%E7%9A%84%E6%89%93%E5%8D%B0%E6%9C%BA%E6%97%A0%E6%B3%95%E6%89%93%E5%8D%B0 => Failed to connect to 14.18.117.71 port 38041: Connection refused"
酒店打印账单的打印机无法打印
