string(301) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%96%B0%E5%AA%92%E4%BD%93%E6%96%87%E6%A1%88%E7%9A%84%E6%A0%B8%E5%BF%83%E8%A6%81%E6%B1%82%E6%98%AF%E5%93%AA%E4%B8%89%E7%82%B9%E5%91%A2 => Failed to connect to 14.18.117.71 port 38220: Connection refused"
新媒体文案的核心要求是哪三点呢
