XML Schema 参考手册 完整 XML Schema 参考手册 The attributeGroup element is used to combine attribute declarations so that they can be combined into complex types. 父元素： AttributeGroup, complexType, schema, restriction (both simpleContent and complexContent), extension (both simpleContent and complexContent) (? Symbol declaration in the attributeGroup element, the element can appear zero or once, and the* symbol declares that the element can appear zero or more times. ) Attribute Description Id Optional. Specifies the unique ID of the element. Name Optional. Specifies the name of the property group. The name and ref properties cannot appear at the same time. Ref Optional. Specifies a reference to the specified property group. The name and ref properties cannot appear at the same time. Any attributes Optional. Specifies any other attributes with the non-schema namespace. The above example defines a property group named “personattr”, which is used in a complex type named “person”.Definition and usage ¶
Element information ¶
Grammar ¶
<attributeGroup
id=ID
name=NCName
ref=QName
*any attributes*
>
(annotation?),((attribute|attributeGroup)*,anyAttribute?))
</attributeGroup>
Example 1 ¶
<xs:attributeGroup name="personattr">
<xs:attribute name="attr1" type="string"/>
<xs:attribute name="attr2" type="integer"/>
</xs:attributeGroup>
<xs:complexType name="person">
<xs:attributeGroup ref="personattr"/>
</xs:complexType>