现场演示：我的 HTML 文档

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title>JavaScript Handling the Resize Event</title>
</head>
<body>
    <p id="result"></p>
    <script>
        function displayWindowSize(){
            var w = window.outerWidth;
            var h = window.outerHeight;
            var txt = "Window size: width=" + w + ", height=" + h;
            document.getElementById("result").innerHTML = txt;
        }
        window.onresize = displayWindowSize;
    </script>
    <p><strong>Note:</strong> Resize the browser window to see how the resize event works.</p>
</body>
</html>