XML毕竟只是一种规范了格式的标记语言，如果没有程序对它进行处理的话，它只是一个保存了很多数据的、有一定格式的文本文件而已。为了能够让计算机“读”懂XML的内容并做出进一步工作，程序就要先分析XML文件的结构和各个数据之间的关系。MS XML Parser就是Microsoft开发的解析XML文件的一系列接口，借助于它的帮助，程序员可以方便地利用提供的接口来分析XML文件。-【Abstract】XML just one of marked language after all, if without processing by the programme, it is only a text file that preserving many data and having certain format by all means. For letting computer could read its content and do more work, we must analyze the　structure and the relation between every　data of　XML document, MS XML Parse which opened out by Microsoft is a series of interfaces of resolving XML document. Recur to it, we can expediently analyze XML document with the help of these interfaces.

　The XML DOM object of MS XML Parse offer a normative method to operate

the information stored in XML document, DOM let users looking　XML document like a information tree with certain structure, but not a stream of text, DOM API is used as bridge between application and XML. Transferring DOM S API, we could deal with document very expediently.

【keywords】Markup Language, Parser Interface, Document Object Model(DOM),DOM Information Tree, DOM API, Visual