uzatma Bu ikisi arasındaki pratik diference Nedir:Fark: XML şeması
<xs:element name="A">
<xs:complexType mixed="true">
<xs:attribute name="att" type="xs:boolean"/>
</xs:complexType>
</xs:element>
<xs:element name="B">
<xs:complexType>
<xs:simpleContent>
<xs:extension base="xs:string">
<xs:attribute name="att" type="xs:boolean"/>
</xs:extension>
</xs:simpleContent>
</xs:complexType>
</xs:element>
@Michael Kay'ın yanıtına bakın: http://stackoverflow.com/questions/12474018/what-is-the-meaning-of-xsmixed-without-elements/36043922#36043922 –