xml学习（1）xml的几种文件格式

<?xml version="1.0" encoding="utf-8" ?>
<CATALOG>
    <CD>
        <TITLE>Empire Burlesque</TITLE>
        <ARTIST>Bob Dylan</ARTIST>
        <COUNTRY>USA</COUNTRY>
        <COMPANY>Columbia</COMPANY>
        <PRICE>10.90</PRICE>
        <YEAR>1985</YEAR>
    </CD>
    <CD>
        <TITLE>Hide your heart</TITLE>
        <ARTIST>Bonnie Tyler</ARTIST>
        <COUNTRY>UK</COUNTRY>
        <COMPANY>CBS Records</COMPANY>
        <PRICE>9.90</PRICE>
        <YEAR>1988</YEAR>
    </CD>
</CATALOG>

<?xml version="1.0" encoding="utf-8" ?>
<config>
    <Header  col1="班级编号" col2="班级名称" col3="年级" col4="学校" col5="男生" col6="女生"  col7="人数"/>
    <row     col1="11" col2="一（一）班" col3="初一" col4="三峡高级中学" col5="20" col6="30"  col7="50"/>
    <row     col1="12" col2="一（二）班" col3="初一" col4="三峡高级中学" col5="18" col6="12"  col7="30"/>
    <row     col1="13" col2="一（三）班" col3="初一" col4="三峡高级中学" col5="16" col6="26"  col7="42"/>
    <row     col1="14" col2="一（四）班" col3="初一" col4="三峡高级中学" col5="23" col6="17"  col7="40"/>
</config>

<row     col1="11" col2="一（一）班" col3="初一" col4="三峡高级中学" col5="20" col6="30"  col7="50"/>