示例
<!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_comment.xml", true);
xhttp.send();
function myFunction(xml) {
var x, i, txt, xmlDoc;
xmlDoc = xml.responseXML;
txt = "";
x = xmlDoc.getElementsByTagName("book")[0].childNodes;
for (i = 0; i < x.length; i++) {
// Process only comment nodes
if (x[i].nodeType == 8) {
x[i].deleteData(0,33);
txt += x[i].data + "<br>";
}
}
document.getElementById("demo").innerHTML = txt;
}
</script>
</body>
</html>
尝试一下
在上面的示例中,我们使用循环和 if-test 来确保仅处理注释节点。 注释节点的节点类型为8。