This paper mainly analyzes the concepts and features of XML(extensible Markup Language)and WML(Wireless Markup Language)that are used in digital library construction. And it further discusses the advantages of XML and WML application.

• 本文重点就数字图书馆建设中涉及到的标记语言中的可扩展标记语言XML(eXtensible Markup Lan-guage)和无线标记语言WML(Wireless Markup Language)的概念、特征作出分析,探讨了数字图书馆中基于XML和WML的Web应用优势。