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jquery图片轮播代码

2026-03-17 02:52:54jquery

jquery图片轮播代码

以下是使用 jQuery 实现图片轮播的代码示例，包含自动轮播和手动切换功能：

基础 HTML 结构

<div class="slideshow-container">
  <div class="slide active">
    <img src="image1.jpg" alt="Image 1">
  </div>
  <div class="slide">
    <img src="image2.jpg" alt="Image 2">
  </div>
  <div class="slide">
    <img src="image3.jpg" alt="Image 3">
  </div>

  <a class="prev">❮</a>
  <a class="next">❯</a>

  <div class="dots-container">
    <span class="dot active"></span>
    <span class="dot"></span>
    <span class="dot"></span>
  </div>
</div>

CSS 样式

.slideshow-container {
  position: relative;
  max-width: 1000px;
  margin: auto;
}

.slide {
  display: none;
}

.slide.active {
  display: block;
}

.slide img {
  width: 100%;
}

.prev, .next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  padding: 16px;
  color: white;
  font-weight: bold;
  font-size: 18px;
  cursor: pointer;
  background-color: rgba(0,0,0,0.3);
}

.next {
  right: 0;
}

.dots-container {
  text-align: center;
  margin-top: 20px;
}

.dot {
  display: inline-block;
  width: 15px;
  height: 15px;
  margin: 0 5px;
  border-radius: 50%;
  background-color: #bbb;
  cursor: pointer;
}

.dot.active {
  background-color: #717171;
}

jQuery 实现代码

$(document).ready(function() {
  let currentSlide = 0;
  const slides = $('.slide');
  const dots = $('.dot');
  const totalSlides = slides.length;

  // 初始化轮播
  function showSlide(index) {
    slides.removeClass('active');
    dots.removeClass('active');
    slides.eq(index).addClass('active');
    dots.eq(index).addClass('active');
    currentSlide = index;
  }

  // 自动轮播
  let slideInterval = setInterval(nextSlide, 3000);

  function nextSlide() {
    let nextIndex = (currentSlide + 1) % totalSlides;
    showSlide(nextIndex);
  }

  // 上一张按钮
  $('.prev').click(function() {
    clearInterval(slideInterval);
    let prevIndex = (currentSlide - 1 + totalSlides) % totalSlides;
    showSlide(prevIndex);
    slideInterval = setInterval(nextSlide, 3000);
  });

  // 下一张按钮
  $('.next').click(function() {
    clearInterval(slideInterval);
    nextSlide();
    slideInterval = setInterval(nextSlide, 3000);
  });

  // 圆点导航
  dots.click(function() {
    clearInterval(slideInterval);
    let dotIndex = $(this).index();
    showSlide(dotIndex);
    slideInterval = setInterval(nextSlide, 3000);
  });

  // 鼠标悬停暂停轮播
  $('.slideshow-container').hover(
    function() {
      clearInterval(slideInterval);
    },
    function() {
      slideInterval = setInterval(nextSlide, 3000);
    }
  );
});