时间：2021-07-01 10:21:17 帮助过：10人阅读
我在这里使用的技术是使用标准JavaScript和CSS3实现简单轮播图的最简单方法之一，具有良好的交叉渐变过渡效果。
基本HTML是微不足道的。只需将几个图像放入div容器中：
<div class="slides"> <img src="image/cup.jpg" > <img src="image/flower.jpg"> <img src="image/flowers.jpg"> <img src="image/strawberry.jpg"> <img src="image/greatwall.jpg"> </div>
使用CSS在容器内堆叠所有图片并定义过渡（特定于浏览器的前缀可能必须用于过渡）：
/* the slide container with a fixed size */
.slides {
box-shadow: 0px 0px 6px black;
margin: 0 auto;
width: 500px;
height: 300px;
position: relative;
}
/* the images are positioned absolutely to stack. opacity transitions are animated. */
.slides img {
display: block;
position: absolute;
transition: opacity 1s;
opacity: 0;
width: 100%;
}
/* the first image is the current slide. it's faded in. */
.slides img:first-child {
z-index: 2;
/* frontmost */
opacity: 1;
}
/* the last image is the previous slide. it's behind the current slide and it's faded over. */
.slides img:last-child {
z-index: 1;
/* behind current slide */
opacity: 1;
}在这个简单的设置之后，剩下的就是更改轮播图的顺序以推进轮播图放映。以下代码段定期将第一张图像（当前图片）移动到容器的末尾，从而使下一张图像成为当前图片。由于上面定义的CSS规则，更改以交叉渐变为动画。
function nextSlide() {
var q = function(sel) {
return document.querySelector(sel);
}
q(".slides").appendChild(q(".slides img:first-child"));
}
setInterval(nextSlide, 3000)以上就是步骤的分析，下面是完整代码
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<script type="text/javascript">
function nextSlide() {
if (typeof $ == "undefined") var $ = function(sel) { return document.querySelector(sel); }
$(".slides").appendChild($(".slides img:first-child"));
}
setInterval(nextSlide, 3000)
</script>
<style type="text/css">
img{
width: 500px;
height: 300px;
}
.slides {
box-shadow: 0px 0px 6px black;
margin: 0 auto;
width: 500px;
height: 300px;
overflow: hidden;
}
.slides img {
position: absolute;
transition: opacity 1s;
opacity: 0;
}
.slides img:first-child {
z-index: 2;
opacity: 1;
}
.slides img:last-child {
z-index: 1;
opacity: 1;
}
</style>
</head>
<body>
<div class="slides">
<img src="image/cup.jpg" >
<img src="image/flower.jpg">
<img src="image/flowers.jpg">
<img src="image/strawberry.jpg">
<img src="image/greatwall.jpg">
</div>
</body>
</html>效果如下：
以上就是JavaScript和CSS实现的简单的轮播图播放效果（附源码）的详细内容，更多请关注Gxl网其它相关文章！