string(241) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%80%8E%E6%A0%B7%E7%94%A8%E7%88%B1%E5%A5%87%E8%89%BA%E4%B8%8B%E8%BD%BDmp4 => Failed to connect to 14.116.215.7 port 38230: Connection refused"
怎样用爱奇艺下载mp4
