JavaScript 图片轮播和箭头点击切换是网页设计中常见的交互功能,用于展示一系列图片,并允许用户通过点击箭头来切换到上一张或下一张图片。
以下是一个简单的JavaScript图片轮播和箭头点击切换的示例代码:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>图片轮播</title>
<style>
#slider {
width: 600px;
overflow: hidden;
position: relative;
}
#slider img {
width: 100%;
display: none;
}
.arrow {
position: absolute;
top: 50%;
transform: translateY(-50%);
cursor: pointer;
}
.left-arrow {
left: 10px;
}
.right-arrow {
right: 10px;
}
</style>
</head>
<body>
<div id="slider">
<img src="image1.jpg" alt="Image 1" id="img1">
<img src="image2.jpg" alt="Image 2" id="img2">
<img src="image3.jpg" alt="Image 3" id="img3">
<div class="arrow left-arrow" onclick="prevImage()">❮</div>
<div class="arrow right-arrow" onclick="nextImage()">❯</div>
</div>
<script>
let currentImage = 1;
const totalImages = 3;
function showImage(n) {
for (let i = 1; i <= totalImages; i++) {
document.getElementById(`img${i}`).style.display = 'none';
}
document.getElementById(`img${n}`).style.display = 'block';
}
function nextImage() {
currentImage = (currentImage % totalImages) + 1;
showImage(currentImage);
}
function prevImage() {
currentImage = (currentImage - 2 + totalImages) % totalImages + 1;
showImage(currentImage);
}
// 初始化显示第一张图片
showImage(currentImage);
</script>
</body>
</html>
通过以上示例和解决方法,可以实现一个基本的图片轮播和箭头点击切换功能,并解决常见的问题。
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