jquery焦点图片

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>jQuery Focus Image</title>
    <style>
        .slider {
            width: 600px;
            height: 300px;
            overflow: hidden;
            position: relative;
        }
        .slider img {
            width: 100%;
            height: 100%;
            position: absolute;
            top: 0;
            left: 0;
            opacity: 0;
            transition: opacity 1s ease-in-out;
        }
        .slider img.active {
            opacity: 1;
        }
    </style>
</head>
<body>
    <div class="slider">
        <img src="image1.jpg" alt="Image 1" class="active">
        <img src="image2.jpg" alt="Image 2">
        <img src="image3.jpg" alt="Image 3">
    </div>

    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
    <script>
        $(document).ready(function() {
            var images = $('.slider img');
            var currentIndex = 0;

            function showImage(index) {
                images.removeClass('active').eq(index).addClass('active');
            }

            function nextImage() {
                currentIndex = (currentIndex + 1) % images.length;
                showImage(currentIndex);
            }

            setInterval(nextImage, 3000); // 每3秒切换一次图片
        });
    </script>
</body>
</html>