Ajax返回数据的格式
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xmlDoc=newActiveXObject("Microsoft.XMLDOM");xmlDoc.async="false";xmlDoc.load(txt);
book.xml<bookstore><book category="children"><title lang="en">Harry Potter</title><author>J K. Rowling</author><year>2005</year><price>29.99</price></book><book category="cooking"><title lang="en">Everyday Italian</title><author>Giada De Laurentiis</author><year>2005</year><price>30.00</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>
loadxmldoc.jsfunction loadXMLDoc(dname){try //Internet Explorer{xmlDoc=new ActiveXObject("Microsoft.XMLDOM");}catch(e){try //Firefox, Mozilla, Opera, etc.{xmlDoc=document.implementation.createDocument("","",null);}catch(e) {alert(e.message)}}try{xmlDoc.async=false;xmlDoc.load(dname);return(xmlDoc);}catch(e) {alert(e.message)}return(xmlDoc);}
testxml.html<html><head><script type="text/javascript" src="loadxmldoc.js"></script></head><body><script type="text/javascript">xmlDoc=loadXMLDoc("book.xml");document.write("xmlDoc is loaded, ready for use");window.alert(xmlDoc.nodeName);var x = xmlDoc.getElementsByTagName("title");window.alert(x);window.alert(x[0].nodeName);window.alert(x[0].attributes[0].nodeValue);window.alert(x[0].childNodes.length);</script></body></html>
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