一、 使用Css3动画实现 <!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style type="text/css">
body,ul{
list-style: none;
} .outer{
width: 750px;
height: 366px;
margin: 100px auto;
border: solid 2px gray; overflow: hidden;
position: relative;
} .inner{
width: 500%;
height: 100%;
position: relative;
left: 0; animation: myAni 15s linear infinite alternate;
} .inner img{
float: left;
width: 20%;
} @keyframes myAni{
0%{left: 0;}
10%{left:0}
20%{left: -100%;}
30%{left: -100%;}
40%{left: -200%;}
50%{left: -200%;}
60%{left: -300%;}
70%{left: -300%;}
80%{left: -400%;}
100%{left: -400%;}
} .outer ul{
position: absolute;
bottom: 16px;
left: 50%;
transform: translateX(-50%);
display: flex;
} .outer li{
/*width: 12px;
height: 12px;*/
margin: 0 10px;
/*background: white;*/
border: solid 8px white;
border-radius: 50%;
} .outer .scroll-ball{
border-color: yellowgreen;
position: relative;
left: -180px; animation: myBall 15s linear infinite alternate;
} @keyframes myBall{
0%{left: -180px;}
10%{left:-180px;}
20%{left: -144px;}
30%{left: -144px;}
40%{left: -108px;}
50%{left: -108px;}
60%{left: -72px;}
70%{left: -72px;}
80%{left: -36px;}
100%{left: -36px;}
}
</style>
</head>
<body>
<div class="outer">
<div class="inner">
<img src="img/5af3df82N15a1910a.jpg"/>
<img src="img/5afbf194Nce807c23.jpg"/>
<img src="img/5afce833N3a41e948.jpg"/>
<img src="img/5af3df82N15a1910a.jpg"/>
<img src="img/5afce833N3a41e948.jpg"/>
</div>
<ul>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li class="scroll-ball"></li>
</ul>
</div>
</body>
</html>
二、 使用javaScript实现 html代码： <!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<link rel="stylesheet" type="text/css" href="css/slideshow.css"/>
</head>
<body>
<div id="slide-container">
<!--轮播的图片-->
<div id="slide-main">
<img src="img/111.jpg"/>
</div> <!--导航-->
<ul id="listMenu">
<li>1</li>
<li>2</li>
<li>3</li>
</ul> <!--左右翻页-->
<div id="slide-nav">
<span><</span>
<span>></span>
</div>
</div>
</body>
<script src="js/slideshow.js" type="text/javascript" charset="utf-8"></script>
</html> css代码： *{
margin: 0;
padding: 0;
} li{
list-style: none;
} #slide-container{
width: 750px;
height: 366px;
margin: 100px auto;
border: dotted 3px orange;
position: relative;
overflow: hidden;
} #listMenu{
width: 50%;
display: flex;
justify-content: space-around; position: absolute;
bottom: 16px;
left: 50%;
transform: translateX(-50%);
} #listMenu li{
height: 30px;
width: 30px;
text-align: center;
line-height: 30px;
border-radius: 50%;
background: yellow;
cursor: pointer;
} #slide-nav{
width: 98%; position: absolute;
top: 50%;
left: 50%;
transform:translateX(-50%) translateY(-50%);
} #slide-nav span{
font-size: 60px;
color: white;
cursor: pointer;
background: #E7E7E7;
opacity: 0.4;
} #slide-nav span:last-of-type{
float: right;
} js代码： //获取元素
//获取图片
var slideMain = document.getElementById('slide-main');
var slidePic = slideMain.getElementsByTagName('img')[0]; //获取导航
var listMenu = document.getElementById('listMenu');
var lis = listMenu.getElementsByTagName("li"); //获取左右翻页
var slideNav = document.getElementById('slide-nav');
var previousNav = slideNav.getElementsByTagName('span')[0];
var nextNav = slideNav.getElementsByTagName('span')[1]; //设置轮播图片数组
var imgArr = ["img/111.jpg","img/222.jpg","img/333.jpg"]; //设置初始的索引，并赋给对应的显示图片
var currentIndex = 0;
slidePic.src = imgArr[currentIndex];
lis[currentIndex].style = "background:orange;color:white"; //设置图片轮播，每隔指定的事件切换图片和导航 用到定时器
var timer = setInterval(slideshow,2000); //设置导航变化
function slideshow(){
//每一次轮播，轮播的索引自动加1;
currentIndex++; //判断，当前索引超出最大值后，重新赋给0
if(currentIndex == lis.length){
currentIndex = 0;
} /*//将导航全部格式化
for(var j = 0; j < lis.length; j++){
lis[j].style = ""
}
//设置当前导航的索引
lis[currentIndex].style = "background:orange;color:white";
//根据当前索引将数组中对应的图片显示到页面上
slidePic.src = imgArr[currentIndex]*/ slidepic(currentIndex); } function slidepic(i){
//将导航全部格式化
for(var j = 0; j < lis.length; j++){
lis[j].style = ""
}
//设置当前导航的索引
lis[i].style = "background:orange;color:white";
//根据当前索引将数组中对应的图片显示到页面上
slidePic.src = imgArr[i]
} for(var i = 0; i < lis.length; i++){
lis[i].index = i;
lis[i].onmouseover = function(){//闭包函数 再循环中无法正确获取对应的索引
//将导航全部格式化
/*for(var j = 0; j < lis.length; j++){
lis[j].style = ""
}
//设置当前导航的索引
this.style = "background:orange;color:white";
slidePic.src = imgArr[this.index];*/ currentIndex = this.index;
slidepic(currentIndex);
clearInterval(timer);
} lis[i].onmouseout = function(){
timer = setInterval(slideshow,1000);
}
} //设置鼠标滑过左右两边按钮时透明度变化
previousNav.onmouseover = nextNav.onmouseover = function(){
previousNav.style = "opacity:0.8";
nextNav.style = "opacity:0.8";
clearInterval(timer);
} previousNav.onmouseout = nextNav.onmouseout = function(){
previousNav.style = "";
nextNav.style = ""
timer = setInterval(slideshow,1000);
} //设置左边按钮的点击事件
previousNav.onclick = function(){
currentIndex--;
if(currentIndex == -1){
currentIndex = lis.length - 1;
}
slidepic(currentIndex)
} //设置右边按钮的点击事件
nextNav.onclick = function(){
currentIndex++;
if(currentIndex == lis.length){
currentIndex = 0;
}
slidepic(currentIndex)
}
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