test2-28.xml

关于XML和网页配合使用的好书

<?xml version="1.0" encoding="GB2312" ?> 
<!DOCTYPE library [
    <!ELEMENT library (title,book*)> 
    <!ELEMENT title (#PCDATA)>
    <!ELEMENT book (#PCDATA)>
    <!ATTLIST book book_number ID #FIXED>
 ]>
<library>
    <title>阿当网上书店</title>
    <book book_number="book1">XML实例应用大全</book>
    <book book_number="book2">XML实例应用集锦</book>
    <book book_number="book3">XML实例祥解</book>
</library>