断点续传下载功能说明

liuhanlindemac:Downloads yishiyaonie$ curl -I -H "Range:bytes=1024-2048" http://liuhanlin-work.qiniudn.com/ceshimp4
HTTP/1.1 206 Partial Content
Date: Mon, 03 Aug 2015 03:29:49 GMT
Server: nginx/1.4.4
Content-Type: video/mp4
Content-Length: 1025
Accept-Ranges: bytes
Access-Control-Allow-Origin: *
Access-Control-Max-Age: 2592000
Cache-Control: public, max-age=31536000
Content-Disposition: inline; filename="ceshimp4"
Content-Range: bytes 1024-2048/36650496
Content-Transfer-Encoding: binary
ETag: "lrMxbjcfPyC7F1siA6tF78B1IMAq"
Last-Modified: Thu, 04 Jun 2015 06:37:13 GMT
X-Log: mc.g;IO:1
X-Reqid: QwIAAMDQ_OYl1vYT
X-Qiniu-Zone: 0
X-Via: 1.1 yangzhou150:8080 (Cdn Cache Server V2.0), 1.1 lsh200:10 (Cdn Cache Server V2.0)
Connection: keep-alive