图片隐藏和显示幻灯片- Javascript

<div id="slideshow">
  <img src="image1.jpg" alt="Image 1">
  <img src="image2.jpg" alt="Image 2">
  <img src="image3.jpg" alt="Image 3">
</div>
<button id="prevButton">Previous</button>
<button id="nextButton">Next</button>

#slideshow {
  position: relative;
  width: 500px;
  height: 300px;
  overflow: hidden;
}

#slideshow img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: none;
}

#prevButton,
#nextButton {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  padding: 10px;
  background-color: #000;
  color: #fff;
  border: none;
  cursor: pointer;
}

#prevButton {
  left: 10px;
}

#nextButton {
  right: 10px;
}

var slideshow = document.getElementById("slideshow");
var images = slideshow.getElementsByTagName("img");
var prevButton = document.getElementById("prevButton");
var nextButton = document.getElementById("nextButton");
var currentIndex = 0;

function showImage(index) {
  // 隐藏当前显示的图片
  images[currentIndex].style.display = "none";
  // 显示指定索引的图片
  images[index].style.display = "block";
  // 更新当前索引
  currentIndex = index;
}

function prevImage() {
  var index = (currentIndex - 1 + images.length) % images.length;
  showImage(index);
}

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

prevButton.addEventListener("click", prevImage);
nextButton.addEventListener("click", nextImage);

// 默认显示第一张图片
showImage(0);