if ($request_filename ~* ^.*?\.(txt|mp4|mp3|mov|acc|m4a|rar|zip)$)
{
add_header Content-type ‘application/octet-stream;‘;
add_header Accept-Ranges ‘bytes;‘;
add_header Content-Disposition ‘attachment;‘;
}本文出自 “不抛弃！不放弃” 博客，请务必保留此出处http://thedream.blog.51cto.com/6427769/1933761
原文：http://thedream.blog.51cto.com/6427769/1933761