XML越来越热，关于XML的基础教程网络上也随处可见。可是一大堆的概念和术语往往让人望而生畏，很多朋友问我：XML到底有什么用，我们是否需要学习它？我想就我个人学习过程的心得和经验，写一篇比较全面的介绍文章。-XML more and more heat, on the basis of XML tutorials network also can be seen everywhere. But a lot of the concepts and terminology are often deter people, many of my friends asked me: XML What is the use in the end, do we need to learn it? I would like to learn the process of my own ideas and experiences, to write an introduction of a more comprehensive article.