xml文件：

<reference xmlns="http://www.w3school.com.cn" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.w3school.com.cn J.xsd">
	<author authorLoc="1">陈路瑶</author>
	<title>信息文档结构信任模式的提取及逻辑描述</title>
	<type>J</type>
	<publisher>计算机应用研究</publisher>
	<publish_year>2010</publish_year>
	<volumn_mark>27</volumn_mark>
	<page_number>4624-4629</page_number>
</reference>

schema文件（J.xsd）：

<?xml version="1.0" encoding="GB2312"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="http://www.w3school.com.cn" targetNamespace="http://www.w3school.com.cn" elementFormDefault="qualified">
	<xs:element name="reference">	
		<xs:complexType>
			<xs:sequence>
				<xs:element name="author" type="authorInfo" minOccurs="1" maxOccurs="1"/>
				<xs:element name="title" type="xs:string" minOccurs="1" maxOccurs="1"/>
				<xs:element name="type" type="xs:string" minOccurs="1" maxOccurs="1"/>
				<xs:element name="publish" type="xs:string" minOccurs="0" maxOccurs="1"/>
				<xs:element name="publisher" type="xs:string" minOccurs="1" maxOccurs="1"/>
				<xs:element name="publish_year" type="xs:string" minOccurs="1" maxOccurs="1"/>
				<xs:element name="volumn_mark" type="xs:string" minOccurs="1" maxOccurs="1"/>
				<xs:element name="page_number" minOccurs="1" maxOccurs="1">
					<xs:simpleType>
						<xs:restriction base="xs:string">
							<xs:pattern value="(\d{1,4}-)?\d{1,4}"/>
						</xs:restriction>
					</xs:simpleType>
				</xs:element>
			</xs:sequence>
		</xs:complexType>
	</xs:element>
	<xs:complexType name="authorInfo">
		<xs:simpleContent>
			<xs:extension base="xs:string">
				<xs:attribute name="authorLoc" use="required">
					<xs:simpleType>
						<xs:restriction base="xs:integer">
							<xs:enumeration value="1"/>
						</xs:restriction>
					</xs:simpleType>
				</xs:attribute>
			</xs:extension>
		</xs:simpleContent>		
	</xs:complexType>
</xs:schema>