string(289) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=office%E5%8A%9E%E5%85%AC%E8%BD%AF%E4%BB%B6%E6%9C%80%E5%B8%B8%E7%94%A8%E7%9A%84%E6%9C%89%E5%87%A0%E7%A7%8D%E7%B1%BB%E5%9E%8B => Failed to connect to 14.18.117.71 port 38220: Connection refused"
office办公软件最常用的有几种类型
