jquery 获取背景图片url

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>获取背景图片 URL</title>
    <style>
        #myElement {
            width: 200px;
            height: 200px;
            background-image: url('https://example.com/image.jpg');
        }
    </style>
    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
</head>
<body>
    <div id="myElement"></div>
    <button id="btn">获取背景图片 URL</button>

    <script>
        $(document).ready(function() {
            $('#btn').click(function() {
                var backgroundImage = $('#myElement').css('background-image');
                // 去掉 url() 中的括号和引号
                var imageUrl = backgroundImage.replace(/^url\(['"]?/, '').replace(/['"]?\)$/, '');
                alert('背景图片 URL: ' + imageUrl);
            });
        });
    </script>
</body>
</html>