jquery 屏幕宽度

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>jQuery Screen Width Example</title>
    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
    <style>
        .hidden {
            display: none;
        }
    </style>
</head>
<body>
    <div id="desktop">Desktop View</div>
    <div id="mobile">Mobile View</div>

    <script>
        $(document).ready(function() {
            function checkScreenWidth() {
                if ($(window).width() < 768) {
                    $('#desktop').addClass('hidden');
                    $('#mobile').removeClass('hidden');
                } else {
                    $('#desktop').removeClass('hidden');
                    $('#mobile').addClass('hidden');
                }
            }

            // 初始检查
            checkScreenWidth();

            // 监听窗口大小变化
            $(window).resize(checkScreenWidth);
        });
    </script>
</body>
</html>