RSS 元素

最新推荐文章于 2024-06-13 20:53:01 发布

转载最新推荐文章于 2024-06-13 20:53:01 发布 · 928 阅读

文章标签：

#rss #image #hyperlink #tutorials #documentation #generator

The RSS <channel> element describes the RSS feed.
RSS <channel>元素是描述RSS 输入端（feed）的。

The RSS <channel> Element
RSS <channel>元素

Look at the following RSS document:
让我们先来看一下RSS文件：

<?xml version="1.0" encoding="ISO-8859-1" ?>

<rss version="2.0">

<channel>
  <title>W3Schools Home Page</title>
  <link>http://www.w3schools.com</link>
  <description>Free web building tutorials</description>

  <item>
    <title>RSS Tutorial</title>
    <link>http://www.w3schools.com/rss</link>
    <description>New RSS tutorial on W3Schools</description>

  </item>
</channel>

</rss>

As mentioned before, the <channel> element describes the RSS feed, and has three required child elements:
如以前提及的一样，<channel>元素形容的是RSS 输入端（feed）及其3个必须子元素：

<title> - Defines the title of the channel (e.g. W3Schools Home Page)
<title>定义了channel的标题（比如：W3School主页）
<link> - Defines the hyperlink to the channel (e.g. http://www.w3pop.com)
<link> - 定义了到channel的超链接（比如：http://www.w3pop.com）
<description> - Describes the channel (e.g. Free web building tutorials)
<description>定义了channel（如：Free web building 教程）

The <channel> element usually contains one ore more <item> elements. Each <item> element defines an article or "story" in the RSS feed.
<channel>元素经常包含一个或多个<item>元素。每个<item>元素定义了一个条款或RSS输入端（feed）中的"story"。

Furthermore, there are several optional child elements of <channel>. We will explain the most important ones below.
此外，还有一些任意参数<channel>子元素。接下来，我们将说明一些比较重要的元素。

The <category> Element
<category>元素

The <category> child element is used to specify a category for your feed.
<category>子元素的作用：详细说明输入端（feed）类别.

The <category> element makes it possible for RSS aggregators to group sites based on category.
通过<category>元素，可以使RSS aggregators对基于同一类别（category）的内容集合起来。

The category for the RSS document above could be:
对于上述的RSS文件，其category应该是：

<category>Web development</category>

The <copyright> Element
<copyright>元素

The <copyright> child element notifies about copyrighted material.
<copyright>子元素是用来描述版权材料的。

The copyright for the RSS document above could be:
对于上面的RSS文件，版权（copyright）应该是：

<copyright>2006 Refsnes Data as. All rights reserved.</copyright>

The <image> Element
<image>元素

The <image> child element allows an image to be displayed when aggregators present a feed.
<image>子元素允许在aggregators 显示一个输入口（feed）的时候显示图像。

The <image> element has three required child elements:
<image>元素有3个必须子元素：

<url> - Defines the URL to the image
<url>定义了图像的URI
<title> - Defines the text to display if the image could not be shown
<title>定义了当图像无法显示时显示文本
<link> - Defines the hyperlink to the website that offers the channel
<link>定义了提供channel的站点超链接

The image for the RSS document above could be:
对于RSS文件，图形应该是：

<image>
  <url>http://www.w3schools.com/images/logo.gif</url>
  <title>W3Schools.com</title>

  <link>http://www.w3schools.com</link>
</image>

The <language> Element
<language>元素

The <language> child element is used to specify the language used to write your document.
<language>子元素的作用：详细说明用于编写文件的语言。

The <language> element makes it possible for RSS aggregators to group sites based on language.
<language>元素使RSS aggregators能够群组基于某一种语言（labguage）的站点

The language for the RSS document above could be:
上述RSS文件的语言应该是：

<language>us-en</language>

RSS <channel> Reference
RSS <channel> 参数

Element 元素	Description 描述
<category>	Optional. Defines one or more categories for the feed 任意参数。为输入端（feed）定义一个或多个类（categories）
<cloud>	Optional. Register processes to be notified immediately of updates of the feed 任意参数。提示注册者进行输入端（feed）的升级
<copyright>	Optional. Notifies about copyrighted material 任意参数。用于写明版权材料
<description>	Required. Describes the channel 任意参数，形容channel
<docs>	Optional. Specifies an URL to the documentation of the format used in the feed 任意参数。指明了用于输入端（feed）格式的文件的URI
<generator>	Optional. Specifies the program used to generate the feed 任意参数。指明了用于产生feed的程序
<image>	Optional. Allows an image to be displayed when aggregators present a feed 任意参数。当aggregators 产生一个输入端（feed）时，允许显示图像
<language>	Optional. Specifies the language the feed is written in 任意参数。详细说明了编写输入端（feed）的语言
<lastBuildDate>	Optional. Defines the last-modified date of the content of the feed 任意参数。定义了输入端（feed）内容的最后更新日期
<link>	Required. Defines the hyperlink to the channel 必要参数。定义了到channel的超链接
<managingEditor>	Optional. Defines the e-mail address to the editor of the content of the feed 任意参数。定义了输入端（feed）内容编辑者的电子邮件地址
<pubDate>	Optional. Defines the last publication date for the content of the feed 任意参数。定义了输入端（feed）内容的最新出版日期
<rating>	Optional. The PICS rating of the feed 任意参数。指明输入端（feed）的PICS等级
<skipDays>	Optional. Specifies the days where aggregators should skip updating the feed 任意参数。指定aggregators跳过输入端（feed）更新的具体天数（day）。
<skipHours>	Optional. Specifies the hours where aggregators should skip updating the feed 任意参数。指定aggregators跳过更新输入端（feed）的小时（hour）
<textInput>	Optional. Specifies a text input field that should be displayed with the feed 任意参数。制定了输入端（feed）显示的文本输入栏
<title>	Required. Defines the title of the channel 必要参数。定义了channel的标题（title）
<ttl>	Optional. Specifies the number of minutes the feed can stay cached before refreshing it from the source 任意参数。详细说明了在资源库更新之前输入端（feed）可以隐藏的分钟数。（minute）
<webMaster>	Optional. Defines the e-mail address to the webmaster of the feed 任意参数。定义了输入端（feed）网络管理员的电子邮件地址