jquery 轮换广告

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>jQuery轮换广告示例</title>
    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
    <style>
        #ad-container {
            width: 300px;
            height: 250px;
            overflow: hidden;
        }
        #ad-container img {
            width: 100%;
            height: 100%;
            display: none;
        }
    </style>
</head>
<body>
    <div id="ad-container">
        <img src="ad1.jpg" alt="广告1">
        <img src="ad2.jpg" alt="广告2">
        <img src="ad3.jpg" alt="广告3">
    </div>

    <script>
        $(document).ready(function() {
            var ads = $('#ad-container img');
            var index = 0;

            function showAd() {
                ads.hide();
                ads.eq(index).show();
                index = (index + 1) % ads.length;
            }

            ads.eq(0).show();
            setInterval(showAd, 3000); // 每3秒切换一次广告
        });
    </script>
</body>
</html>