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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title></title>
<link rel="stylesheet" href="">
<script>
function loadXMLString(txt) {
var xmlDoc = null;
if (window.DOMParser) {
var parser = new window.DOMParser();
xmlDoc = parser.parseFromString(txt, "text/xml");
}
else // code for IE
{
xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
xmlDoc.async = false;
xmlDoc.loadXML(txt);
}
return xmlDoc;
}
var s = ‘<alarm sound="I" locate="I"><alarm_out><ctl id="1" no="11" val="111"/><ctl id="2" no="22" val="222"/><ctl id="3" no="33" val="333"/></alarm_out><camera><id>c1</id><id>c2</id><id>c3</id></camera></alarm>‘;
var xml = loadXMLString(s);
var c = xml.getElementsByTagName("alarm")[0];
var alarm_out = c.getElementsByTagName("alarm_out")[0];
if(alarm_out){
for (var i = 0; i < alarm_out.childNodes.length; i++) {
console.log(‘===========‘+(i+1)+‘===========‘);
console.log("alarm_out attribute id:" + alarm_out.childNodes[i].getAttribute("id"));
console.log("alarm_out attribute no:" + alarm_out.childNodes[i].getAttribute("no"));
console.log("alarm_out attribute val:" + alarm_out.childNodes[i].getAttribute("val"));
console.log(‘===========‘+(i+1)+‘===========‘);
}
}
var camera = c.getElementsByTagName("camera")[0];
if(camera){
for (var i = 0; i < camera.childNodes.length; i++) {
var a = camera.childNodes[i];
console.log("camera id:" + camera.childNodes[i].textContent);
}
}
</script>
</head>
<body>
</body>
</html>
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原文地址：http://www.cnblogs.com/numver/p/4642297.html
