javascript怎么获取图片原始尺寸并将尺寸信息显示在页面上？

其实获取图片的原始尺寸代码已经找到了

但是！

不知道怎么把尺寸信息显示在页面上...

代码

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <script type="application/javascript">
        window.onload = function () {
            // 通过 new Image 获取图片真实尺寸
            var csdnImg = document.getElementById('csdnImg');
            var img = new Image();
            var naturalWidth, naturalHeight;
            img.onload = function () {
                naturalWidth = this.width;
                naturalHeight = this.height;
                console.log('new Image()', naturalWidth, naturalHeight); // 240 90
            };
            img.src = csdnImg.src;
        };
    </script>
</head>
<body>
<img id="csdnImg" src="http://www.csdn.net/css/logo.png" style="width: 120px; height: 45px;" width="480" height="180">
</body>
</html>

这是从https://blog.csdn.net/SDUST_JSJ/article/details/74231342抄来的，但希望有人能帮帮我这个菜鸡

就像下面这样把js获取到的图片信息写在旁边就行，拜托了！

<body>
<img id="csdnImg" src="http://www.csdn.net/css/logo.png" style="width: 120px; height: 45px;" width="480" height="180">
<p>这里是图片信息</p>
</body>

不是放个容器显示就行了。。


<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <script>
        window.onload = function () {
            // 通过 new Image 获取图片真实尺寸
            var csdnImg = document.getElementById('csdnImg');
            var img = new Image();
            var naturalWidth, naturalHeight;
            img.onload = function () {
                naturalWidth = this.width;
                naturalHeight = this.height;
                document.getElementById('dvSize').innerHTML=naturalWidth+'x'+naturalHeight
                console.log('new Image()', naturalWidth, naturalHeight); // 240 90
            };
            img.src = csdnImg.src;
        };
    </script>
</head>
<body>
    <div id="dvSize"></div>
    <img id="csdnImg" src="http://csdnimg.cn/cdn/content-toolbar/csdn-logo.png?v=20200416.1" style="width: 120px; height: 45px;" width="480" height="180">
</body>
</html>