用AJAX post返回数据 - 自学教程(runoops.com)

<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8">
    <title>用AJAX post返回数据 - 自学教程(runoops.com)</title>
    <script>
        function loadXMLDoc() {
            var xmlhttp;
            if (window.XMLHttpRequest) {
                // IE7+, Firefox, Chrome, Opera, Safari 浏览器执行代码
                xmlhttp = new XMLHttpRequest();
            }
            else {
                // IE6, IE5 浏览器执行代码
                xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
            }
            xmlhttp.onreadystatechange = function () {
                if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
                    document.getElementById("myDiv").innerHTML = xmlhttp.responseText;
                }
            }
            xmlhttp.open("POST", "//demo.runoops.com/ajax/demo_post2.php", true);
            xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
            xmlhttp.send("fname=Henry&lname=Ford");
        }
    </script>
</head>

<body>

</body>

</html>