DTD:文档类型定义(Document Type Definition)实例

//自定义XML文档构建模块

<!ELEMENT students (student*)>

<!ELEMENT student (name,course,score)>

<!ELEMENT name (#PCDATA)>

<!ELEMENT course (#PCDATA)>

<!ELEMENT score (#PCDATA)>

<!ATTLIST student idCDATA #REQUIRED>

 

 例子：

<?xmlversion="1.0"encoding="UTF-8"standalone="no"?>

<students>

<studentid="1">

<name>marry</name>

<course>java</course>

<score>98</score>

</student>

<studentid="9">

<name>JACK</name>

<course>oracle</course>

<score>89</score>

</student>

<studentid="4">

<name>tom</name>

<course>oracle</course>

<score>90</score>

</student>

</students>