以下是关于简单 JavaScript 图片轮播的相关内容:
基础概念: 图片轮播是一种网页效果,通过定时或用户操作来循环展示一系列图片。
优势:
类型:
应用场景:
以下是一个简单的自动图片轮播示例代码:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style>
#slider {
width: 500px;
height: 300px;
overflow: hidden;
position: relative;
}
#slider img {
width: 100%;
height: 100%;
position: absolute;
opacity: 0;
transition: opacity 1s ease-in-out;
}
#slider img.active {
opacity: 1;
}
</style>
</head>
<body>
<div id="slider">
<img src="image1.jpg" alt="Image 1" class="active">
<img src="image2.jpg" alt="Image 2">
<img src="image3.jpg" alt="Image 3">
</div>
<script>
const images = document.querySelectorAll('#slider img');
let currentIndex = 0;
function showNextImage() {
images[currentIndex].classList.remove('active');
currentIndex = (currentIndex + 1) % images.length;
images[currentIndex].classList.add('active');
}
setInterval(showNextImage, 3000);
</script>
</body>
</html>
可能出现的问题及解决方法:
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