<? xml version="1.0" encoding="UTF-8" ?> <!-- 以schema开始，以schema结束这个schema的声明方式：定义一个全局元素表达root元素，在元素类型中定义子元素。还有一种定义方式，所有的元素都是全局的，在元素类型定义中引用全局元素重用的几种方法：一、引用元素或组 二、导入 <xsd:include schemalocation=""/> 三、扩充或限制 <xsd:complexType name="Tname"> <xsd:complexContent> <xsd:extension base="..."> 扩充内容 </xsd:extension> </xsd:complexContent> </xsd:complexType> <xsd:complexType name="Tname"> <xsd:complexContent> <xsd:restriction base="..."> 用maxOccus限制 <xsd:element name="..." type="xsd:string" maxOccus="0"/> </xsd:extension> </xsd:complexContent> </xsd:complexType> --> < xsd:schema xmlns:xsd ="http://www.w3.org/2001/XMLSchema" targetNamespace ="http://www.example.org/sampleSchema" xmlns ="http://www.example.org/sampleSchema" elementFormDefault ="qualified" > < xsd:annotation > < xsd:documentation xml:lang ="en" > Purchase Order Schema for redzero </ xsd:documentation > </ xsd:annotation > < xsd:element name ="po" type ="poType" /> < xsd:simpleType name ="skuType" > < xsd:restriction base ="xsd:string" > < xsd:pattern value ="d{3}-[a-zA-Z]{2}" ></ xsd:pattern > </ xsd:restriction > </ xsd:simpleType > < xsd:complexType name ="poType" > < xsd:sequence > < xsd:element name ="billTo" type ="addressType1" ></ xsd:element > < xsd:element name ="shipTo" type ="addressType2" /> < xsd:element name ="order" > <!-- 匿名类型定义 --> < xsd:complexType > < xsd:sequence > < xsd:element name ="item" type ="itemType" maxOccurs ="unbounded" > </ xsd:element > </ xsd:sequence > </ xsd:complexType > </ xsd:element > </ xsd:sequence > < xsd:attribute name ="id" type ="xsd:positiveInteger" use ="required" > </ xsd:attribute > < xsd:attribute name ="submitted" type ="xsd:date" use ="required" > </ xsd:attribute > </ xsd:complexType > < xsd:group name ="addressType" > < xsd:sequence > < xsd:element name ="company" type ="xsd:string" ></ xsd:element > < xsd:element name ="street" type ="xsd:string" maxOccurs ="unbounded" /> < xsd:element name ="city" type ="xsd:string" ></ xsd:element > < xsd:element name ="state" type ="xsd:string" ></ xsd:element > < xsd:element name ="postalCode" type ="xsd:positiveInteger" ></ xsd:element > </ xsd:sequence > </ xsd:group > <!-- 重用addressType，引用定义好的组，接近于编程语言的组合 --> < xsd:complexType name ="addressType1" > < xsd:sequence > < xsd:group ref ="addressType" ></ xsd:group > </ xsd:sequence > < xsd:attribute name ="id" type ="xsd:ID" use ="required" ></ xsd:attribute > </ xsd:complexType > < xsd:complexType name ="addressType2" > < xsd:sequence > < xsd:group ref ="addressType" ></ xsd:group > </ xsd:sequence > < xsd:attribute name ="href" type ="xsd:IDREF" use ="required" ></ xsd:attribute > </ xsd:complexType > < xsd:complexType name ="itemType" > < xsd:sequence > < xsd:element name ="description" type ="xsd:string" ></ xsd:element > </ xsd:sequence > < xsd:attribute name ="sku" type ="skuType" use ="required" ></ xsd:attribute > < xsd:attribute name ="quantity" type ="xsd:positiveInteger" use ="required" > </ xsd:attribute > </ xsd:complexType > <!-- 另一种重用的方法，扩充，接近于编程语言的继承 --> <!-- <xsd:complexType name="addressType3"> <xsd:complexContent > <xsd:extension base="addressType" > <xsd:attribute name="id" type="xsd:ID" use="required"></xsd:attribute> </xsd:extension> </xsd:complexContent> </xsd:complexType> --> </ xsd:schema > 相关资源：Schema-workbench
