XML DOM 学习

XML 树

<bookstore>
            <book category="COOKING">
            <title lang="en">Everyday Italian</title>
            <author>Giada De Laurentiis</author>
            <year>2005</year>
            <price>30.00</price>
            </book>
            <book category="CHILDREN">
            <title lang="en">Harry Potter</title>
            <author>J K. Rowling</author>
            <year>2005</year>
            <price>29.99</price>
            </book>
            <book category="WEB">
            <title lang="en">Learning XML</title>
            <author>Erik T. Ray</author>
            <year>2003</year>
            <price>39.95</price>
            </book>
            </bookstore>

二.操作XML DOM的常用方法
有于有不同的浏览器,所以对XML DOM有所不同,主流的就是Microsfot IE跟FIREFOX,还有OPERA,等等,

var xmlDoc=new ActiveXObject("Microsoft.XMLDOM"); //定义一个基于Microsoft.XMLDOM的空对象,有于不同的的浏览器而定
            xmlDoc.async="false"; //The second line turns off asynchronized loading, to make sure that the parser will not continue execution of the script before the document is fully loaded.
            xmlDoc.load("note.xml");//截入XML文件

            
var parser=new DOMParser();   //定义一个XML DOCUMENT对象
            var doc=parser.parseFromString(txt,"text/xml"); 把xml文件转为string