<?xml version="1.0" encoding="utf-8"?>
<students>
<student>
<number>1</number>
<name>徐茂山</name>
<sex>男</sex>
<age>20</age>
</student>
<student>
<number>2</number>
<name>李逍遥</name>
<sex>男</sex>
<age>22</age>
</student>
</students>
<student> <s1> <id>2</id> <name>张三</name> <age>15</age> </s1> <s2> <id>3</id> <name>李四</name> <age>45</age> </s2> </student>
套进去就好了。