<empty>

<empty> indicates the presence of an empty node within a content model [23 Documentation Elements]
組件 tagdocs — Documentation Elements
屬性
俱乐部会员
model.contentPart
可包含在於
tagdocs: alternate content sequence
可包含 空白元素
例子
<content>
 <alternate minOccurs="0"
  maxOccurs="unbounded">
  <empty/>
  <elementRef key="hi"/>
 </alternate>
</content>
Content model 
<content>
 <empty/>
</content>
宣告 
<rng:element name="empty">
 <rng:ref name="att.global.attributes"/>
 <rng:ref name="att.global.rendition.attributes"/>
 <rng:ref name="att.global.linking.attributes"/>
 <rng:ref name="att.global.analytic.attributes"/>
 <rng:ref name="att.global.facs.attributes"/>
 <rng:ref name="att.global.change.attributes"/>
 <rng:ref name="att.global.responsibility.attributes"/>
 <rng:ref name="att.global.source.attributes"/>
 <rng:empty/>
</rng:element>
element empty
{
   att.global.attributes,
   att.global.rendition.attributes,
   att.global.linking.attributes,
   att.global.analytic.attributes,
   att.global.facs.attributes,
   att.global.change.attributes,
   att.global.responsibility.attributes,
   att.global.source.attributes,
   empty
}