示例
以下代码片段将
"books.xml" 加载到 xmlDoc 中,并向所有<book>元素添加 “edition” 属性:
<!DOCTYPE html>
<html>
<body>
<p id="demo"></p>
<script>
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (xhttp.readyState == 4 && xhttp.status == 200) {
myFunction(xhttp);
}
};
xhttp.open("GET", "books.xml", true);
xhttp.send();
function myFunction(xml) {
var x, i, xmlDoc, txt;
xmlDoc = xml.responseXML;
txt = "";
x = xmlDoc.getElementsByTagName('title');
// 向每个标题元素添加新属性
for (i = 0; i < x.length; i++) {
x[i].setAttribute("edition","first");
}
// 输出标题和版本值
for (i = 0; i < x.length; i++) {
txt += x[i].childNodes[0].nodeValue +
" - Edition: " +
x[i].getAttribute('edition') + "<br>";
}
document.getElementById("demo").innerHTML = txt;
}
</script>
</body>
</html>
尝试一下