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jquery轮播图代码

2026-04-08 11:29:42jquery

jquery轮播图代码

以下是一个基于jQuery实现的简单轮播图代码示例，包含自动轮播和手动切换功能：

HTML结构

<div class="slider">
  <div class="slider-container">
    <img src="image1.jpg" class="active">
    <img src="image2.jpg">
    <img src="image3.jpg">
  </div>
  <div class="slider-controls">
    <button class="prev">Previous</button>
    <button class="next">Next</button>
  </div>
  <div class="slider-dots">
    <span class="dot active" data-index="0"></span>
    <span class="dot" data-index="1"></span>
    <span class="dot" data-index="2"></span>
  </div>
</div>

CSS样式

.slider {
  position: relative;
  width: 600px;
  margin: 0 auto;
  overflow: hidden;
}
.slider-container {
  display: flex;
  transition: transform 0.5s ease;
}
.slider-container img {
  width: 100%;
  display: none;
}
.slider-container img.active {
  display: block;
}
.slider-controls {
  position: absolute;
  width: 100%;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  justify-content: space-between;
}
.slider-dots {
  text-align: center;
  padding: 10px 0;
}
.dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #ccc;
  margin: 0 5px;
  cursor: pointer;
}
.dot.active {
  background: #333;
}

jQuery代码

$(document).ready(function() {
  let currentIndex = 0;
  const slides = $('.slider-container img');
  const totalSlides = slides.length;
  let autoSlideInterval;

  function showSlide(index) {
    slides.removeClass('active');
    $(slides[index]).addClass('active');
    $('.dot').removeClass('active');
    $('.dot[data-index="'+index+'"]').addClass('active');
    currentIndex = index;
  }

  function nextSlide() {
    let newIndex = (currentIndex + 1) % totalSlides;
    showSlide(newIndex);
  }

  function prevSlide() {
    let newIndex = (currentIndex - 1 + totalSlides) % totalSlides;
    showSlide(newIndex);
  }

  function startAutoSlide() {
    autoSlideInterval = setInterval(nextSlide, 3000);
  }

  function stopAutoSlide() {
    clearInterval(autoSlideInterval);
  }

  $('.next').click(function() {
    stopAutoSlide();
    nextSlide();
    startAutoSlide();
  });

  $('.prev').click(function() {
    stopAutoSlide();
    prevSlide();
    startAutoSlide();
  });

  $('.dot').click(function() {
    stopAutoSlide();
    let dotIndex = parseInt($(this).attr('data-index'));
    showSlide(dotIndex);
    startAutoSlide();
  });

  startAutoSlide();
});