问题
I know that rss feeds is news...Is it possible to get rss feed's from yesterday or day before yesterday...(more exactly, archive of rss feeds).
回答1:
No, the server decides what posts to feed you.
Your RSS server might be configured to let you have more posts by supplying arguments to the feed url - but thats unlikely.
来源：https://stackoverflow.com/questions/2123918/is-it-possible-to-get-rss-archive