文章目录
- PC端
- 效果
- Html部分
- css部分
- js部分
- 文件源码
- 移动端
PC端
效果
Html部分
<div class="container">
<a href="javascript:;" class="previous"><a>
<a href="javascript:;" class="next"> >a>
<ul class="show">
<li><img src="img/bg1.jpg" alt="">li>
<li><img src="img/bg2.jpg" alt="">li>
<li><img src="img/bg3.jpg" alt="">li>
ul>
<ul class="bottom"> ul>
div>
css部分
* {
margin: 0;
padding: 0;
}
.container {
position: relative;
width: 1000px;
height: 677px;
overflow: hidden;
}
.container .show {
width: 300%;
position: absolute;
left: 0;
top: 0;
z-index: -1;
}
.container .show li {
list-style: none outside none;
float: left;
}
.container a {
position: absolute;
text-decoration: none;
display: none;
width: 50px;
font-size: 3em;
color: #ccc;
border-radius: 50%;
line-height: 1;
height: 50px;
text-align: center;
top: 350px;
}
.container a.next {
right: 0;
}
.container .bottom {
position: absolute;
bottom: 0;
width: 100%;
height: 50px;
background: rgba(0, 0, 0, .5);
}
.container .bottom li {
list-style: none outside none;
float: left;
width: 10px;
height: 10px;
border-radius: 50%;
background: rgba(208, 208, 208, .8);
margin-left: 10px;
margin-top: 20px;
}
.container .bottom li.active {
background: #545353;
}
js部分
let container = document.querySelector('.container');
let left = document.querySelector('.previous');
let right = document.querySelector('.next');
let show = document.querySelector('.show');
let bottom = document.querySelector('.bottom');
container.addEventListener('mouseenter', function () {
left.style.display = "block";
right.style.display = "block";
});
container.addEventListener('mouseleave', function () {
left.style.display = "none";
right.style.display = "none";
});
for (let i = 0; i < show.childElementCount; i++) {
let li = document.createElement('li');
li.addEventListener('click', function () {
for (let j = 0; j < bottom.childElementCount; j++)
bottom.children[j].removeAttribute("class");
this.setAttribute("class", "active");
move(show, -(show.children[i].clientWidth * i));
});
bottom.appendChild(li);
}
let index = 0;
function slider() {
bottom.children[index].click();
index = (index + 1) % bottom.children.length;
}
left.addEventListener('click', function () {
clearInterval(t);
index = index == 0 ? bottom.children.length - 1 : index - 1;
bottom.children[index].click();
t = setInterval(slider, 3000);
});
right.addEventListener('click', function () {
clearInterval(t);
index = index == bottom.children.length - 1 ? 0 : index + 1;
bottom.children[index].click();
t = setInterval(slider, 3000);
});
slider();
let t = setInterval(slider, 3000);
function move(obj, target, callback) {
clearInterval(obj.timer);
obj.timer = setInterval(function () {
let step = (target - obj.offsetLeft) / 10;
step = step > 0 ? Math.ceil(step) : Math.floor(step);
if (obj.offsetLeft == target) {
clearInterval(obj.timer);
if (callback)
callback();
}
obj.style.left = obj.offsetLeft + step + 'px';
}, 15);
}
文件源码
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>轮播图title>
<style>
* {
margin: 0;
padding: 0;
}
.container {
position: relative;
width: 1000px;
height: 677px;
overflow: hidden;
}
.container .show {
padding: 0;
width: 300%;
position: absolute;
left: 0;
top: 0;
z-index: -1;
}
.container .show li {
list-style: none outside none;
float: left;
}
.container a {
position: absolute;
text-decoration: none;
display: none;
width: 50px;
font-size: 3em;
color: #ccc;
border-radius: 50%;
line-height: 1;
height: 50px;
text-align: center;
top: 350px;
}
.container a.next {
right: 0;
}
.container .bottom {
position: absolute;
bottom: 0;
width: 100%;
height: 50px;
background: rgba(0, 0, 0, .5);
}
.container .bottom li {
list-style: none outside none;
float: left;
width: 10px;
height: 10px;
border-radius: 50%;
background: rgba(208, 208, 208, .8);
margin-left: 10px;
margin-top: 20px;
}
.container .bottom li.active {
background: #545353;
}
style>
head>
<body>
<div class="container">
<a href="javascript:;" class="previous"><a>
<a href="javascript:;" class="next"> >a>
<ul class="show">
<li><img src="img/bg1.jpg" alt="">li>
<li><img src="img/bg2.jpg" alt="">li>
<li><img src="img/bg3.jpg" alt="">li>
ul>
<ul class="bottom"> ul>
div>
<script>
let container = document.querySelector('.container');
let left = document.querySelector('.previous');
let right = document.querySelector('.next');
let show = document.querySelector('.show');
let bottom = document.querySelector('.bottom');
container.addEventListener('mouseenter', function () {
left.style.display = "block";
right.style.display = "block";
});
container.addEventListener('mouseleave', function () {
left.style.display = "none";
right.style.display = "none";
});
for (let i = 0; i < show.childElementCount; i++) {
let li = document.createElement('li');
li.addEventListener('click', function () {
for (let j = 0; j < bottom.childElementCount; j++)
bottom.children[j].removeAttribute("class");
this.setAttribute("class", "active");
move(show, -(show.children[i].clientWidth * i));
});
bottom.appendChild(li);
}
let index = 0;
function slider() {
bottom.children[index].click();
index = (index + 1) % bottom.children.length;
}
left.addEventListener('click', function () {
clearInterval(t);
index = index == 0 ? bottom.children.length - 1 : index - 1;
bottom.children[index].click();
t = setInterval(slider, 3000);
});
right.addEventListener('click', function () {
clearInterval(t);
index = index == bottom.children.length - 1 ? 0 : index + 1;
bottom.children[index].click();
t = setInterval(slider, 3000);
});
slider();
let t = setInterval(slider, 3000);
function move(obj, target, callback) {
clearInterval(obj.timer);
obj.timer = setInterval(function () {
let step = (target - obj.offsetLeft) / 10;
step = step > 0 ? Math.ceil(step) : Math.floor(step);
if (obj.offsetLeft == target) {
clearInterval(obj.timer);
if (callback)
callback();
}
obj.style.left = obj.offsetLeft + step + 'px';
}, 15);
}
script>
body>
html>
移动端
效果
源码
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>移动端轮播图title>
<style>
* {
margin: 0;
padding: 0;
}
.container {
position: relative;
width: 150px;
height: 100px;
overflow: hidden;
}
.container .show {
padding: 0;
width: 300%;
position: absolute;
left: 0;
top: 0;
z-index: -1;
}
.container .show li {
list-style: none outside none;
float: left;
}
.container .bottom {
position: absolute;
bottom: 0;
width: 100%;
height: 20px;
background: rgba(0, 0, 0, .5);
}
.container .bottom li {
list-style: none outside none;
float: left;
width: 10px;
height: 10px;
border-radius: 50%;
background: rgba(208, 208, 208, .8);
margin-left: 10px;
margin-top: 5px;
}
.container .bottom li.active {
background: #545353;
}
style>
head>
<body>
<div class="container">
<ul class="show">
<li><img src="img/bg4.jpg" alt="">li>
<li><img src="img/bg5.jpg" alt="">li>
<li><img src="img/bg6.jpg" alt="">li>
ul>
<ul class="bottom"> ul>
div>
<script>
let container = document.querySelector('.container');
let show = document.querySelector('.show');
let bottom = document.querySelector('.bottom');
for (let i = 0; i < show.childElementCount; i++) {
let li = document.createElement('li');
li.addEventListener('click', function () {
for (let j = 0; j < bottom.childElementCount; j++)
bottom.children[j].removeAttribute("class");
this.setAttribute("class", "active");
move(show, -(show.children[i].clientWidth * i));
});
bottom.appendChild(li);
}
let startX = 0;
container.addEventListener('touchstart', function (e) {
startX = e.targetTouches[0].pageX;
})
container.addEventListener('touchend', function (e) {
if (e.changedTouches[0].pageX > startX) {
clearInterval(t);
index = index == 0 ? bottom.children.length - 1 : index - 1;
bottom.children[index].click();
t = setInterval(slider, 3000);
} else if (e.changedTouches[0].pageX < startX) {
clearInterval(t);
index = index == bottom.children.length - 1 ? 0 : index + 1;
bottom.children[index].click();
t = setInterval(slider, 3000);
}
})
let index = 0;
function slider() {
bottom.children[index].click();
index = (index + 1) % bottom.children.length;
}
slider();
let t = setInterval(slider, 3000);
function move(obj, target) {
clearInterval(obj.timer);
obj.timer = setInterval(function () {
let step = (target - obj.offsetLeft) / 10;
step = step > 0 ? Math.ceil(step) : Math.floor(step);
if (obj.offsetLeft == target)
clearInterval(obj.timer);
obj.style.left = obj.offsetLeft + step + 'px';
}, 15);
}
script>
body>
html>
