XML小练习（一）

来源：互联网发布：php exec 异步执行编辑：程序博客网时间：2024/05/16 17:28
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE students [      <!ELEMENT students (student*)>      <!ELEMENT student (name+,class+,number+,duty*,sex+,hometown?)>      <!ELEMENT name (#PCDATA)>      <!ELEMENT class (#PCDATA)>      <!ELEMENT number (#PCDATA)>      <!ELEMENT duty (#PCDATA)>      <!ELEMENT sex (#PCDATA)>      <!ELEMENT hometown (province?,city?)>      <!ELEMENT province (#PCDATA)>      <!ELEMENT city (#PCDATA)>]><students>     <student>      <name>张三</name>      <class>1406401</class>      <number>1406401-01</number>      <duty>团支书</duty>      <sex>男</sex>       <hometown>        <province>湖南省</province>        <city>长沙市</city>       </hometown>   </student>      <student>      <name>李四</name>      <class>1406101</class>      <number>1406101-02</number>      <duty>学习委员</duty>      <sex>女</sex>        <hometown>        <city>北京</city>        </hometown>   </student>      <student>      <name>王五</name>      <class>1406402</class>      <number>1406402-03</number>      <sex>男</sex>       <hometown>        <province>山西省</province>        <city>大同市</city>       </hometown>   </student>      <student>      <name>孙六</name>      <class>1406401</class>      <number>1406401-04</number>      <sex>男</sex>       <hometown>        <province>湖北省</province>        <city>武汉市</city>       </hometown>   </student>     <student>      <name>赵七</name>      <class>1406102</class>      <number>1406102-05</number>      <duty>班长</duty>      <sex>男</sex>        <hometown>        <province>湖南省</province>        <city>益阳市</city>       </hometown>   </student>  </students>
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