资源描述框架的用途及实际应用解析
什么是RDF？RDF代表 资源描述框架
RDF是用于描述网络资源的框架
RDF旨在被计算机阅读和理解
RDF并非设计用于供人阅读
RDF以 XML 编写
示例
[*]描述购物商品的属性，如价格和可用性
[*]描述网络活动的时间表
[*]描述网页的信息（内容，作者，创建和修改日期）
[*]描述网络图片的内容和评级
[*]为搜索引擎描述内容
[*]描述电子图书馆
RDF旨在提供一种通用的描述信息的方式，以便计算机应用程序可以阅读和理解。RDF描述并不是设计用于在网络上显示。RDF文档以XML编写。 RDF使用的XML语言称为RDF/XML。通过使用XML，可以轻松地在使用不同类型的操作系统和应用程序语言的不同类型的计算机之间交换RDF信息。
RDF与“语义网络”
[*]网络信息具有确切的含义
[*]网络信息可以被计算机理解和处理
[*]计算机可以集成来自网络的信息
RDF使用Web标识符（URI）来标识资源。<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF>RDF使用属性和属性值描述资源。RDF资源，属性和属性值RDF使用Web标识符（URI）标识事物，并使用属性和属性值描述资源。
RDF语句
资源，属性和属性值的组合形成语句（称为语句的主题，谓词和宾语）
RDF示例
以下是来自CD列表的两个记录：
标题艺术家国家公司价格年份帝国脱衣舞Bob Dylan美国哥伦比亚10.901985隐藏你的心Bonnie Tyler英国CBS Records9.901988以下是RDF文档中的几行：
<?xml version="1.0"?>
<rdf:RDF
xmlns:cd="http://www.recshop.fake/cd#">
<rdf:Description
rdf:about="http://www.recshop.fake/cd/Empire Burlesque">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><cd:artist>Bob Dylan</cd:artist>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><cd:country>USA</cd:country>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><cd:company>Columbia</cd:company>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><cd:price>10.90</cd:price>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><cd:year>1985</cd:year>
</rdf:Description>
<rdf:Description
rdf:about="http://www.recshop.fake/cd/Hide your heart">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><cd:artist>Bonnie Tyler</cd:artist>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><cd:country>UK</cd:country>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><cd:company>CBS Records</cd:company>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><cd:price>9.90</cd:price>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><cd:year>1988</cd:year>
</rdf:Description>
...
</rdf:RDF>RDF文档的第一行是XML声明。 XML声明后面是RDF文档的根元素：rdf:RDF。xmlns:cd命名空间指定了带有cd前缀的元素来自命名空间“http://www.recshop.fake/cd#”。rdf:Description元素包含了由rdf:about属性标识的资源的描述。元素：cd:artist，cd:country，cd:company等是资源的属性RDF文档，检查您的语法，并生成您的RDF文档的表格和图形视图。
RDF元素
RDF的主要元素是根元素<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF>和<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF>元素，它标识了一个资源。
元素
是RDF文档的根元素。 它定义XML文档为RDF文档。 它还包含对RDF命名空间的引用：
<?xml version="1.0"?>
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF>...描述放在这里...
</rdf:RDF> 元素
元素使用 about 属性标识一个资源。
<?xml version="1.0"?>
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:cd="http://www.recshop.fake/cd#">
<rdf:Description
rdf:about="http://www.recshop.fake/cd/Empire Burlesque">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><cd:artist>Bob Dylan</cd:artist>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><cd:country>USA</cd:country>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><cd:company>Columbia</cd:company>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><cd:price>10.90</cd:price>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><cd:year>1985</cd:year>
</rdf:Description>
</rdf:RDF>元素 artist，country，company，price 和 year 在 http://www.recshop.fake/cd# 命名空间中定义。 此命名空间位于RDF之外（不是RDF的一部分）。 元素 artist，country，company，price 和 year 必须由其他人（公司，组织，个人等）定义。
属性作为属性
属性元素也可以定义为属性（而不是元素）：
属性作为资源，属性元素也可以定义为资源：
<?xml version="1.0"?>
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:cd="http://www.recshop.fake/cd#">
<rdf:Description
rdf:about="http://www.recshop.fake/cd/Empire Burlesque">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><cd:artist rdf:resource="http://www.recshop.fake/cd/dylan" />
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF>...
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF>...
</rdf:Description>
</rdf:RDF>在上面的示例中，属性 artist 没有值，但是有一个对包含有关艺术家信息的资源的引用。
RDF 容器
RDF容器用于描述一组事物。以下RDF元素用于描述组：、和。
元素
元素用于描述一个值列表，这些值不必按特定顺序排列。
元素可以包含重复值。
示例
<?xml version="1.0"?>
<rdf:RDF
xmlns:cd="http://www.recshop.fake/cd#">
<rdf:Description
rdf:about="http://www.recshop.fake/cd/Beatles">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><cd:artist>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><rdf:Bag>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><rdf:li>John</rdf:li>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><rdf:li>Paul</rdf:li>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><rdf:li>George</rdf:li>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><rdf:li>Ringo</rdf:li>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF></rdf:Bag>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF></cd:artist>
</rdf:Description>
</rdf:RDF> 元素
元素用于描述一个有序的值列表（例如，按字母顺序）。
元素可以包含重复值
示例
<?xml version="1.0"?>
<rdf:RDF
xmlns:cd="http://www.recshop.fake/cd#">
<rdf:Description
rdf:about="http://www.recshop.fake/cd/Beatles">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><cd:artist>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><rdf:Seq>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><rdf:li>George</rdf:li>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><rdf:li>John</rdf:li>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><rdf:li>Paul</rdf:li>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><rdf:li>Ringo</rdf:li>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF></rdf:Seq>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF></cd:artist>
</rdf:Description>
</rdf:RDF> 元素
元素用于描述备选值列表（用户只能选择其中一个值）。
示例
<?xml version="1.0"?>
<rdf:RDF
xmlns:cd="http://www.recshop.fake/cd#">
<rdf:Description
rdf:about="http://www.recshop.fake/cd/Beatles">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><cd:format>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><rdf:Alt>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><rdf:li>CD</rdf:li>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><rdf:li>Record</rdf:li>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><rdf:li>Tape</rdf:li>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF></rdf:Alt>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF></cd:format>
</rdf:Description>
</rdf:RDF>RDF 术语
在上述示例中，当描述容器元素时，我们提到了值列表。在RDF中，这些值列表被称为成员。因此，我们有以下内容：
[*]容器是包含事物的资源
[*]所包含的事物称为成员（而不是值列表）
RDF集合
RDF 集合描述只能包含指定成员的组。
rdf:parseType="Collection" 属性
容器说明包含的资源是成员，但并未规定其他成员不允许存在。
RDF 集合用于描述只能包含指定成员的组。
通过属性 rdf:parseType="Collection" 描述集合。
示例
<?xml version="1.0"?>
<rdf:RDF
xmlns:cd="http://recshop.fake/cd#">
<rdf:Description
rdf:about="http://recshop.fake/cd/Beatles">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><cd:artist rdf:parseType="Collection">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><rdf:Description rdf:about="http://recshop.fake/cd/Beatles/George"/>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><rdf:Description rdf:about="http://recshop.fake/cd/Beatles/John"/>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><rdf:Description rdf:about="http://recshop.fake/cd/Beatles/Paul"/>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><rdf:Description rdf:about="http://recshop.fake/cd/Beatles/Ringo"/>
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF></cd:artist>
</rdf:Description>
</rdf:RDF>RDF 模式和应用类
RDF 模式（RDFS）是对 RDF 的扩展。RDF 用类、属性和值描述资源。此外，RDF 还需要一种方法来定义特定于应用程序的类和属性。必须使用 RDF 的扩展来定义特定于应用程序的类和属性。
RDF 模式（RDFS）
RDF 模式不提供实际的特定于应用程序的类和属性。相反，RDF 模式提供了描述特定于应用程序的类和属性的框架。RDF 模式中的类与面向对象编程语言中的类非常相似。这允许资源被定义为类的实例，并且类的子类。
RDFS 示例
以下示例演示了一些 RDFS 功能：
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF>在上面的示例中，“horse”资源是“animal”类的子类。
示例简写
由于 RDFS 类是 RDF 资源，我们可以简化上面的示例，使用 rdfs:Class 代替 rdf:Description，并且省略 rdf:type 信息：
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF>达布林核心
达布林核心元数据倡议（DCMI）已经创建了一些预定义属性来描述文档。RDF 是元数据（关于数据的数据）。RDF 用于描述信息资源。达布林核心是一组用于描述文档的预定义属性。第一个达布林核心属性是在 1995 年在俄亥俄州达布林的元数据研讨会上定义的，目前由达布林核心元数据倡议维护。
属性定义Contributor对资源内容做出贡献的实体Coverage资源内容的范围或覆盖范围Creator对资源内容负主要责任的实体Format资源的物理或数字表示Date资源生命周期中的事件日期Description资源内容的说明Identifier在给定上下文中对资源的明确引用Language资源的知识内容语言Publisher使资源可用的实体Relation到相关资源的引用Rights资源所拥有的和持有的权利信息Source当前资源的来源参考Subject资源内容的主题Title资源的名称Type资源内容的性质或类型快速查看上面的表格表明，RDF 非常适合表示达布林核心信息。
RDF 示例
以下示例演示了 RDF 文档中一些达布林核心属性的使用：
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF>W3Schools - Free tutorials<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF>Refsnes Data as<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF>2008-09-01<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF>Web Development<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF>text/html<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF>en<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF>RDFS / RDF 类
元素类子类rdfs:Class所有类rdfs:Datatype数据类型类rdfs:Resource所有资源类rdfs:Container容器资源rdfs:Literal文字和数字的文字值资源rdf:List列表资源rdf:Property属性资源rdf:Statement声明资源rdf:Alt备选项容器容器rdf:Bag无序容器容器rdf:Seq有序容器容器rdfs:ContainerMembershipProperty容器成员属性属性rdf:XMLLiteralXML 文字值文字RDFS / RDF 属性
元素域范围描述rdfs:domain属性类资源的域rdfs:range属性类资源的范围rdfs:subPropertyOf属性属性属性的子属性rdfs:subClassOf类类资源是类的子类rdfs:comment资源文字资源的人类可读描述rdfs:label资源文字资源的人类可读标签（名称）rdfs:isDefinedBy资源资源资源的定义rdfs:seeAlso资源资源关于资源的额外信息rdfs:member资源资源资源的成员rdf:first列表资源rdf:rest列表列表rdf:subject声明资源资源在 RDF 声明中的主题rdf:predicate声明资源资源在 RDF 声明中的谓词rdf:object声明资源资源在 RDF 声明中的对象rdf:value资源资源用于值的属性rdf:type资源类资源是类的实例RDF 属性
属性描述rdf:about定义正在描述的资源rdf:Description资源描述的容器rdf:resource定义要识别属性的资源
| rdf:datatype<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF> | 定义元素的数据类型<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF> |
| rdf:ID<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF> | 定义元素的 ID<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF>|
| rdf:li<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF> | 定义一个列表<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF> |
| rdf:_n<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF> | 定义一个节点<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF> |
| rdf:nodeID<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF> | 定义元素节点的 ID<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF>|
| rdf:parseType<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF>| 定义应如何解析元素<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF> |
| rdf:RDF<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF>| RDF 文档的根<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF>|
| xml:base<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF> | 定义 XML 基础<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF>|
| xml:lang<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF><?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF> | 定义元素内容的语言<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdf:Description rdf:ID="animal">
</rdf:Description>
<rdf:Description rdf:ID="horse">
<?xml version="1.0"?>
<rdf:RDF
xml:base="http://www.animals.fake/animals#">
<rdfs:Class rdf:ID="animal" />
<rdfs:Class rdf:ID="horse">
<rdfs:subClassOf rdf:resource="#animal"/>
</rdfs:Class>
</rdf:RDF><rdfs:subClassOf rdf:resource="#animal"/>
</rdf:Description>
</rdf:RDF> |
最后
为了方便其他设备和平台的小伙伴观看往期文章：
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