用jquery实现京东首页轮播图效果 (源码分享)

以下是一个使用jQuery实现的简单京东首页轮播图效果的示例代码：

HTML部分：

<div class="jd-carousel">
    <div class="carousel-inner">
        <div class="carousel-item active"><img src="image1.jpg"></div>
        <div class="carousel-item"><img src="image2.jpg"></div>
        <div class="carousel-item"><img src="image3.jpg"></div>
        <!-- 更多轮播图项 -->
    </div>
    <a class="carousel-control-prev" href="#" role="button" data-slide="prev">
        <span class="carousel-control-prev-icon" aria-hidden="true"></span>
        <span class="sr-only">Previous</span>
    </a>
    <a class="carousel-control-next" href="#" role="button" data-slide="next">
        <span class="carousel-control-next-icon" aria-hidden="true"></span>
        <span class="sr-only">Next</span>
    </a>
</div>

CSS部分：

.jd-carousel {
    position: relative;
    width: 100%;
    margin: auto;
    height: 400px; /* 轮播图高度 */
    overflow: hidden;
}
.carousel-inner {
    position: absolute;
    width: 300%; /* 所有轮播图项的宽度 */
    transition: transform 0.5s ease-in-out;
}
.carousel-item {
    width: 100%;
    float: left;
}
.carousel-item img {
    width: 100%;
    height: 400px; /* 与HTML中的高度一致 */
    display: block;
}
.carousel-control-prev, .carousel-control-next {
    position: absolute;
    top: 50%;
    transform: translate(0, -50%);
    z-index: 1;
    display: none; /* 默认不显示 */
    color: #fff;
    font-size: 30px;
    text-align: center;
    line-height: 1;
    cursor: pointer;
    background-color: rgba(0, 0, 0, 0.25);
}
.carousel-control-prev:hover, .carousel-control-next:hover {
    color: #fff;
    background-color: rgba(0, 0, 0, 0.5);
}

jQuery部分：

$(document).ready(function() {
    var $carouselItems = $('.carousel-inner .carousel-item');
    var carouselItemCount = $carouselItems.length;
    var currentIndex = 0;
 
    // 显示第一张图片
    $carouselItems.eq(currentIndex).addClass('active');
 
    // 轮播图切换函数
    function slideTo(index) {
        var currentItem = $carouselItems.eq(currentIndex);
        var nextItem = $carouselItems.eq(index);
 
        currentItem.removeClass('active').css('left', '');
        nextItem.addClass('active');
 
        var offset = -nextItem.index() * 100;
        $('.carousel-inner').css('transform', 'translateX(' + offset + '%)');
 
        currentIndex = index;
    }
 
    // 初始化时显示控制按钮
    $('.jd-carouse