<?xml version="1.0" encoding="UTF-8"?>
<xsi:schema xmlns:xsi="https://www.w3.org/2001/XMLSchema" targetNamespace="https://www.w3.org/"
xmlns:tns="https://www.w3.org/" elementFormDefault="qualified">
<xsi:element name="persons">
</xsi:element>
</xsi:schema>
[html]
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="https://www.w3.org/2001/XMLSchema"
targetNamespace="https://www.example.org/family" xmlns:tns="https://www.example.org/family"
elementFormDefault="qualified">
<xs:element name="person">
<xs:complexType>
<xs:sequence>
<xs:element name="firstname" type="xs:string"></xs:element>
<xs:element name="lastname" type="xs:string"></xs:element>
</xs:sequence>
<xs:anyAttribute/><!-- <anyAttribute> 元素使我们有能力通过未被 schema 规定的属性来扩展XML文档！ -->
</xs:complexType>
</xs:element>
</xs:schema>
[html]
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="https://www.w3.org/2001/XMLSchema"
targetNamespace="https://www.example.org/children" xmlns:tns="https://www.example.org/children"
elementFormDefault="qualified">
<xs:attribute name="sex"><!-- 创建属性名称为sex的属性 -->
<xs:simpleType>
<xs:restriction base="xs:string"><!-- 创建的约束条件 -->
<xs:enumeration value="男"></xs:enumeration><!-- 规定属性值得范围 -->
<xs:enumeration value="女"></xs:enumeration>
</xs:restriction>
</xs:simpleType>
</xs:attribute>
</xs:schema>
[html]
<?xml version="1.0" encoding="UTF-8"?>
<persons xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance"
xmlns="https://www.w3.org" xmlns:fm="https://www.example.org/family"
xmlns:ch="https://www.example.org/children"
xsi:schemaLocation="https://www.w3.org per.xsd https://www.example.org/family family.xsd https://www.example.org/children children.xsd">
<fm:person ch:sex="男">
<fm:firstname></fm:firstname>
<fm:lastname></fm:lastname>
</fm:person>
<fm:person ch:sex="女">
<fm:firstname></fm:firstname>
<fm:lastname></fm:lastname>
</fm:person>
</persons>
