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<redefine
id=ID
schemaLocation=anyURI
any attributes
>

(annotation|(simpleType|complexType|group|attributeGroup))*

</redefine>
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id ¿ÉÑ¡¡£¹æ¶¨¸ÃÔªËØµÄΨһµÄ ID¡£
schemaLocation ±ØÐè¡£¶Ô schema ÎĵµÎ»ÖÃµÄ URI ÒýÓá£
any attributes ¿ÉÑ¡¡£¹æ¶¨´øÓÐ non-schema ÃüÃû¿Õ¼äµÄÈÎºÎÆäËûÊôÐÔ¡£

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Àý×Ó 1

ÏÂÃæµÄÀý×ÓչʾÁËÒ»¸ö schema£¬Myschama2.xsd£¬ÆäÖдæÔÚÓÉ Myschama1.xsd ¹æ¶¨µÄÔªËØ¡£pname ÀàÐͱ»ÖØÐ¶¨Òå¡£¸ù¾Ý´Ë schema£¬±» pname Ô¼ÊøµÄÔªËØ±ØÐëÒÔ "country" ÔªËØ½áÊø£º

Myschema1.xsd:

<?xml version="1.0"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">

<xs:complexType name="pname">
  <xs:sequence>
    <xs:element name="firstname"/>
    <xs:element name="lastname"/>
  </xs:sequence>
</xs:complexType>

<xs:element name="customer" type="pname"/>

</xs:schema>

Myschema2.xsd:

<?xml version="1.0"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">

<xs:redefine schemaLocation="Myschema1.xsd">
  <xs:complexType name="pname">
    <xs:complexContent>
      <xs:extension base="pname">
        <xs:sequence>
          <xs:element name="country"/>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
</xs:redefine>

<xs:element name="author" type="pname"/>

</xs:schema>
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