student.xsd
<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
targetNamespace="http://www.example.org/classroom"
xmlns:tns="http://www.example.org/classroom"
elementFormDefault="qualified">
<xsd:element name="student" type="tns:studentType"/>
<xsd:complexType name="studentType">
<xsd:sequence>
<xsd:element name="name" type="xsd:string"/>
<xsd:element name="sex" type="tns:sexType"/>
</xsd:sequence>
</xsd:complexType>
<xsd:simpleType name="sexType">
<xsd:restriction base="xsd:string">
<xsd:enumeration value="男"/>
<xsd:enumeration value="女"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:schema>
classroom.xsd
<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
targetNamespace="http://www.example.org/classroom"
xmlns:tns="http://www.example.org/classroom"
elementFormDefault="qualified">
<!-- 两个文件必须在同一个命名空间下(targetNamespace) -->
<xsd:include schemaLocation="student.xsd"/>
<xsd:element name="classroom" type="tns:classroomType"/>
<xsd:complexType name="classroomType">
<xsd:sequence>
<xsd:element name="grade" type="tns:gradeType"/>
<xsd:element name="name" type="xsd:string"/>
<xsd:sequence minOccurs="1" maxOccurs="unbounded">
<xsd:element name="student" type="tns:studentType"/> </xsd:sequence> </xsd:sequence> </xsd:complexType> <xsd:simpleType name="gradeType"> <xsd:restriction base="xsd:int"> <xsd:minInclusive value="2000"/> <xsd:maxInclusive value="3000"/> </xsd:restriction> </xsd:simpleType> </xsd:schema>
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