jQuery实现轮播功能
完整代码
<!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">
<title>Document</title>
<style>
.wrapper {
width: 600px;
height: 350px;
border: 1px solid red;
position: relative;
}
.wrapper img {
width: 100%;
height: 100%;
position: absolute;
left: 0;
top: 0;
display: none;
}
.wrapper img:nth-of-type(1) {
display: block;
}
.btn {
width: 150px;
display: flex;
justify-content: space-around;
position: absolute;
left: 225px;
bottom: 10px;
z-index: 100
}
.btn span {
display: block;
width: 15px;
height: 15px;
border: 3px solid white;
border-radius: 50%;
}
.wrapper a {
text-decoration: none;
font-size: 50px;
color: red;
position: absolute;
top: 35%;
}
.wrapper a:nth-of-type(1) {
left: 10px;
}
.wrapper a:nth-of-type(2) {
right: 10px;
}
.active {
background-color: red;
}
</style>
</head>
<body>
<div class="wrapper">
<div class="contain">
<img src="./img/10011.jpg" alt="">
<img src="./img/10012.jpg" alt="">
<img src="./img/10013.jpg" alt="">
<img src="./img/10014.jpg" alt="">
<img src="./img/10015.jpg" alt="">
</div>
<div class="btn">
<span class="active"></span>
<span></span>
<span></span>
<span></span>
<span></span>
</div>
<a href="javascript:void(0);"><</a>
<a href="javascript:void(0);">></a>
</div>
<script src="./js/jquery-3.6.0.min.js"></script>
<script>
var index = 0;
function next() {
index++;
if (index > 4) {
index = 0;
}
addStyle();
}
function prev() {
index--;
if (index < 0) {
index = 4
}
addStyle();
}
function addStyle() {
$("img").eq(index).fadeIn().siblings().fadeOut();
$("span").eq(index).addClass("active").siblings().removeClass("active");
}
var id;
autoplay();
function autoplay() {
id = setInterval(function () {
next();
}, 2000)
}
$("a:first").click(function () {
prev();
})
$("a:last").click(function () {
next();
})
$(".wrapper").mouseover(function () {
clearInterval(id);
})
$(".wrapper").mouseout(function () {
autoplay();
})
</script>
</body>
</html>
效果图：
