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发表于 2006-9-2 12:50 · 北京
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RSS is a type of web feed. For the basics of what web feeds are, benefits and how to use them, read the web feed definition; otherwise see below for more details about RSS.
RSS is a family of web feed formats specified in XML (a generic specification for data formats) and used for Web syndication. RSS delivers its information as an XML file called an "RSS feed", "webfeed", "RSS stream", or "RSS channel". These RSS feeds provide a way for users to passively receive newly released content (such as text, web pages, sound files, or other media); this might be the full content itself or just a link to it, possibly with a summary or other metadata (data describing the content).
In the typical use scenario, a content provider publishes a feed link on their site which end-users can add to an aggregator program running on their machine; periodically (typically every 60 minutes or every day, though most aggregators make this user-configurable), the aggregator asks all the servers in its feed list if they have new content; if so, the aggregator either makes a note of the new content or downloads it. |
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