string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%87%87%E8%B4%AD%E8%AE%BE%E5%A4%87%E8%AE%A1%E5%85%A5%E4%BB%80%E4%B9%88%E7%A7%91%E7%9B%AE => Failed to connect to 14.18.117.71 port 38069: Connection refused"
采购设备计入什么科目
