test2-38.xml

来自「关于XML和网页配合使用的好书」· XML 代码 · 共 11 行

<?xml version="1.0" encoding="gb2312"?>
<!DOCTYPE entity [
   <!ELEMENT entity (E_mail)>
   <!ELEMENT E_mail (#PCDATA)>
   <!ENTITY email "&abc;Adam@net_book.net">
   <!ENTITY abc "&email;Adam@net_book.net">
]>
<entity>
   <E_mail>&email;</E_mail>
   <E_mail>&abc;</E_mail> 
</entity>