轮播图的四种方法

1.swiper插件实现轮播图

swiper是一个实现轮播图很强大，上手也容易。并且也是现在app，网址等用的最多的，
官方网址：http://www.swiper.com.cn/
下载插件导入，按照教程即可实现精美效果

代码部分

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <link rel="stylesheet" type="text/css" href="swiper-3.4.1.min.css">
    <script type="text/javascript" src="jquery/jquery-3.0.0.min.js"></script>
    <script type="text/javascript" src="swiper-3.4.1.jquery.min.js"></script>
    <style type="text/css">
        .swiper-container{
             790px;
            height: 340px;
        }
    </style>
</head>

<!-- 结构以及class的类名不允许更改 -->
<body>
    <div class="swiper-container">
    <div class="swiper-wrapper">
        <div class="swiper-slide">![]((1).jpg)</div>
        <div class="swiper-slide">![]((2).jpg)</div>
        <div class="swiper-slide">![]((3).jpg)</div>
        <div class="swiper-slide">![]((4).jpg)</div>
        <div class="swiper-slide">![]((5).jpg)</div>
        <div class="swiper-slide">![]((6).jpg)</div>
        <div class="swiper-slide">![]((7).jpg)</div>
        <div class="swiper-slide">![]((8).jpg)</div>
    </div>
    <!-- 如果需要分页器 -->
    <div class="swiper-pagination"></div>
    
    <!-- 如果需要导航按钮 -->
    <div class="swiper-button-prev"></div>
    <div class="swiper-button-next"></div>
    
    <!-- 如果需要滚动条 -->
    <!-- <div class="swiper-scrollbar"></div> -->
</div>

<script type="text/javascript">
    var mySwiper = new Swiper ('.swiper-container', {
    // 滚动方向 horizontal/vertical
    direction: 'horizontal',
    // 自动播放
    autoplay:2000,
    // 是否循环播放
    loop: true,
    // 如果需要分页器（小圆点）
    // 是否需要分页器
    pagination: '.swiper-pagination',
    // 点击分页器是否切换到对应的图片 是 true 否 false
    paginationClickable:true,

    // 如果需要前进后退按钮
    nextButton: '.swiper-button-next',
    prevButton: '.swiper-button-prev',
    
    // 用户操作swiper之后，是否禁止autoplay。默认为true：停止。
    // 如果设置为false，用户操作swiper之后自动切换不会停止，每次都会重新启动autoplay。
    // 操作包括触碰，拖动，点击pagination等。
    autoplayDisableOnInteraction:false,
  }) 

</script>
</body>

</body>
</html>

2.JS实现轮播图

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>轮播图</title>
    <style>
        #loopDiv{
             790px;
            height: 340px;
            margin: 0 auto;
            position: relative;
        }
        
        #list{
            list-style: none;
        
            position: absolute;
            bottom: 10px;
            left: 250px;
        }
        #list li{
            float: left;
             20px;
            height: 20px;
            line-height: 20px;
            text-align: center;
            border-radius: 50%;
            background: #aaa;
            margin-right: 10px;
        }
        .chooseBut{
             50px;
            height: 80px;
            background-color: rgba(0,0,0,0.2);
            color: #fff;
            font-size: 30px;
            line-height: 80px;
            text-align: center;
            display: none;
        }
        #left{
            position: absolute;
            left: 0px;
            top: 130px;
        }
        #right{
            position: absolute;
            right: 0px;
            top: 130px;
        }
    </style>
</head>
<body>
    <div id="loopDiv">
        ![](img/0.jpg)
        <ul id="list">
            <li>1</li>
            <li>2</li>
            <li>3</li>
            <li>4</li>
            <li>5</li>
            <li>6</li>
            <li>7</li>
            <li>8</li>
        </ul>
        <div id="left" class="chooseBut"><</div>
        <div id="right" class="chooseBut">></div>
    </div>
    <script type="text/javascript">
        var jsDivBox = document.getElementById("loopDiv");
        //图片节点
        var jsImg = document.getElementById("pic");
        //左右按钮节点
        var jsLeft = document.getElementById("left");
        var jsRight = document.getElementById("right");
        //获取所有的li
        var jsUl = document.getElementById("list");
        var jsLis = jsUl.getElementsByTagName("li");
        //让第一个小圆点变为红色
        jsLis[0].style.backgroundColor = "red";
        
        //显示当前的图片下标
        var currentPage = 0;
        
        //启动定时器
        var timer = setInterval(func, 1000);
        function func() {
            currentPage++;
            changePic();
        
        }
        function changePic() {
            if (currentPage == 8) {
                currentPage = 0;
            }
            if (currentPage == -1) {
                currentPage = 7;
            }
            //更换图片
            //"img/1.jpg"
            jsImg.src = "img/" + currentPage + ".jpg";
            //将所有的小圆点颜色清空
            for (var i = 0; i < jsLis.length; i++) {
                jsLis[i].style.backgroundColor = "#aaa";
            }
            //改变对应小圆点为红色
            jsLis[currentPage].style.backgroundColor = "red";
        }
        
        //鼠标进入
        jsDivBox.addEventListener("mouseover", func1, false);
        function func1() {
            //停止定时器
            clearInterval(timer);
            //显示左右按钮
            jsLeft.style.display = "block";
            jsRight.style.display = "block";
        }
        //鼠标移出
        jsDivBox.addEventListener("mouseout", func2, false);
        function func2() {
            //重启定时器
            timer = setInterval(func, 1000);
        
            //隐藏左右按钮
            jsLeft.style.display = "none";
            jsRight.style.display = "none";
        }
            
        //点击左右按钮
        jsLeft.addEventListener("click", func3, false);
        function func3() {
            currentPage--;
            changePic();
        }
        jsLeft.onmouseover = function() {
            this.style.backgroundColor = "rgba(0,0,0,0.6)";
        }
        jsLeft.onmouseout = function() {
            this.style.backgroundColor = "rgba(0,0,0,0.2)";
        }
        jsRight.addEventListener("click", func4, false);
        function func4() {
            currentPage++;
            changePic();
        }
        jsRight.onmouseover = function() {
            this.style.backgroundColor = "rgba(0,0,0,0.6)";
        }
        jsRight.onmouseout = function() {
            this.style.backgroundColor = "rgba(0,0,0,0.2)";
        }
                
        //进入小圆点
        for (var j = 0; j < jsLis.length; j++) {
            jsLis[j].onmouseover = function() {
                currentPage = parseInt(this.innerHTML) - 1;
                changePic();
            };
        }

    </script>
</body>
</html>

3.jQuery实现轮播图

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style type="text/css">
        .pic{
             790px;
            height: 340px;
            margin: 10px auto;
            position: relative;
            overflow: hidden;
        }
        .content{
             99999px;
            height: 340px;
            position: absolute;
            left: 0px;
            top: 0px;

        }
        .content img{
            float: left;
        }
        .index{
            position: absolute;
            left: 300px;
            bottom: 5px;
             200px;
            height: 20px;
            list-style: none;
        }
        .index li{
             10px;
            height: 10px;
            border-radius: 50%;
            float: left;
            margin-left: 10px;
            background-color: rgba(100,100,100,0.3);
        }

        .left{
             30px;
            height:50px;
            background-color:rgba(100,100,100,0.5);  
            position: absolute;
            left: 0px;
            top: 150px;
            line-height: 50px;
            text-align: center;
            font-size: 20px;
            color: #fff;
            display: none;
        }
        .right{
             30px;
            height:50px;
            background-color:rgba(100,100,100,0.5);  
            position: absolute;
            right: 0px;
            top: 150px;
            line-height: 50px;
            text-align: center;
            font-size: 20px;
            color: #fff;
            display: none;
        }
        .index .first{
            background-color: red;
        }

    </style>
    <script type="text/javascript" src="jquery/jquery-3.0.0.min.js"></script>
</head>
<body>
    <div class="pic">
        <div class="content">
            ![](img/(1).jpg)
            ![](img/(2).jpg)
            ![](img/(3).jpg)
            ![](img/(4).jpg)
            ![](img/(5).jpg)
            ![](img/(6).jpg)
            ![](img/(7).jpg)
            ![](img/(8).jpg)
        </div>
        <ul class="index">
            <li class="first"></li>
            <li></li>
            <li></li>
            <li></li>
            <li></li>
            <li></li>
            <li></li>
            <li></li>
        </ul>
        <div class="right">></div>
        <div class="left"><</div>
    </div>
    <script type="text/javascript">
        $(function(){
            //每个固定的时间移动图片
            var timer = setInterval(picLoop,1000);
            var index = 0;
            function picLoop(){
                index++;
                if (index==8) {index=0;}
                $(".content").animate({"left":-790*index},300);
                $("li").eq(index).css("background-color","red")
                       .siblings().css("background-color","rgba(100,100,100,0.3)");
            }

            //定时器的控制
            $(".pic").hover(function(){
                clearInterval(timer);
                $(".left").show();
                $(".right").show();
            },function(){
                timer = setInterval(picLoop,1000);
                $(".left").hide();
                $(".right").hide();
            })

            $("li").mouseover(function(){
                $(this).css("background-color","red")
                       .siblings().css("background-color","rgba(100,100,100,0.3)");
                index = $(this).index();
                $(".content").animate({"left":-790*index},300);

            })

            $(".left").click(function(){
                index--;
                if (index==-1) {index=7;}
                $(".content").animate({"left":-790*index},300);
                $("li").eq(index).css("background-color","red")
                       .siblings().css("background-color","rgba(100,100,100,0.3)");
            })
            $(".right").click(function(){
                index++;
                if (index==8) {index=0}
                $(".content").animate({"left":-790*index},300);
                $("li").eq(index).css("background-color","red")
                       .siblings().css("background-color","rgba(100,100,100,0.3)"); 
            })


        })
    </script>
</body>
</html>

4.css3实现轮播图

css3的轮播实用性差，但是也可以使用，但是可以锻炼我们的思维。

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title></title>
        <style>
        * {
            margin:0;
            padding:0;
        }

        ul {
            list-style:none;
        }
        .loop{
            position: relative;
            margin:30px auto;
            600px;
            height:300px;
        }
        
        #wrap {
             position:relative;
             600px;
             height:300px;
             border:1px solid #9cc5ef;
             overflow:hidden;
        }
        
        #slider {
              300%;
              height:100%;
              font:100px/400px Microsoft Yahei;
              text-align:center;
              color:#fff;
              margin-left:0;
              -webkit-animation:slide1 3s ease-out infinite;
        }
        
        #slider li {
              float:left;
              600px;
              height:100%;
        }
        #slider img{
             600px;
             height:100%;
        }
        /*创建三种动画策略*/
        @-webkit-keyframes slide1 {
          0% { margin-left:0;}
          23% { margin-left:0;}
          33% { margin-left:-600px;}
          56% { margin-left:-600px;}
          66% { margin-left:-1200px;}
          90% { margin-left:-1200px;}
          100% {margin-left:0;}
        }
        
        @-webkit-keyframes slide2 {
          0% { margin-left:-600px;}
          23% { margin-left:-600px;}
          33% { margin-left:-1200px;}
          56% { margin-left:-1200px;}
          66% { margin-left:0;}
          90% { margin-left:0;}
          100% {margin-left:-600px;}
        }
        
        @-webkit-keyframes slide3 {
          0% { margin-left:-1200px;}
          23% { margin-left:-1200px;}
          33% { margin-left:0;}
          56% { margin-left:0;}
          66% { margin-left:-600px;}
          90% { margin-left:-600px;}
          100% {margin-left:-1200px;}
        }
        
        
        /*当我们点击对应按钮时显示对应的动画*/
        #first:checked ~ #wrap #slider {
          -webkit-animation-name:slide1;
        }
        
        #second:checked ~ #wrap #slider {
          -webkit-animation-name:slide2;
        }
        
        #third:checked ~ #wrap #slider {
          -webkit-animation-name:slide3;
        }
        
        
        /*短暂地取消动画名称，模拟重启动画*/
        #first:active ~ #wrap #slider {
          -webkit-animation-name:none;
          margin-left:0;
        }
        
        #second:active ~ #wrap #slider {
          -webkit-animation-name:none;
          margin-left:-600px;
        }
        
        #third:active ~ #wrap #slider {
          -webkit-animation-name:none;
          margin-left:-1200px;
        }
        #opts {
          600px;
          height:40px;
          margin:auto;
          color:#fff;
          text-align:center;
          font:16px/30px Microsoft Yahei;
          position: absolute;
          top: 260px;
          left: 250px;
        }
        
        #opts label {
          float:left;
          30px;
          height:30px;
          margin-right:10px;
          background:#cccccc;
          cursor:pointer;
          border-radius: 50%;
        }
        
        #opts label:hover {
          background:#405871;
        }
        
        /* 隐藏Input按钮*/
        #first, #second, #third {
          display:none;
        }

        </style>
    </head>
    <body>
        <div class="loop">
            <input type="radio" name="slider" id="first">
            <input type="radio" name="slider" id="second">
            <input type="radio" name="slider" id="third">
              
            <div id="wrap">
              <ul id="slider">
                <li>![](img/0.jpg)</li>
                <li>![](img/1.jpg)</li>
                <li>![](img/2.jpg)</li>
              </ul>
            </div>  
            <div id="opts">
              <label for="first">1</label>
              <label for="second">2</label>
              <label for="third">3</label>
            </div>
        </div>
    </body>
</html>

用jquery写的无缝左右滑动轮播图

这里的圆点的html代码是通过js实现的，全jquery实现无缝轮播
1、html代码
<div class="banner">
<ul class="imgs">
<li><a href="#"><img src="/img/pic1.jpg" alt="第1张图片"></a></li>
<li><a href="#"><img src="/img/pic2.jpg" alt="第2张图片"></a></li>
<li><a href="#"><img src="/img/pic3.jpg" alt="第3张图片"></a></li>
<li><a href="#"><img src="/img/pic4.jpg" alt="第4张图片"></a></li>
<li><a href="#"><img src="/img/pic5.jpg" alt="第5张图片"></a></li>
</ul>

<ul class="nums"></ul>

<div class="btns">
<span class="prev"><</span>
<span class="next">></span>
</div>
</div>

2、css代码
div.banner{
display:block;
position: relative;
margin:0 auto;
1200px;
height:535px;
margin-top:30px;
overflow: hidden;
z-index: 1;
}
.imgs{
position: absolute;
top: 0;
left: 0;
}
.des{
position: absolute;
bottom: 0;
left: 0;
z-index: -2;
background: #ccc;
}
.des li{
float: left;
1200px;
}
.imgs li{
float: left;
}
.nums{
position: absolute;
bottom: 10px; 100%;
text-align: center;
font-size: 0;
}
.nums li{
10px;
height: 10px;
background:rgba(0,0,0,0.5);
display: block;
border-radius: 100%;
display: inline-block;
margin: 0 5px;
cursor: pointer;
}
.btns{
display: none;
}
.btns span{
display: block;
50px;
height: 100px;
background: rgba(0,0,0,0.6);
color: #fff;
font-size: 40px;
line-height: 100px;
text-align: center;
cursor:pointer;
}
.btns .prev{
position: absolute;
left: 0;
top: 50%;
margin-top: -50px;
}
.btns .next{
position: absolute;
right: 0;
top: 50%;
margin-top: -50px;
}
.nums .active{
background-color: #fff;
}
.hide{
display: none;
}

3、全部jquery-js代码

$(function(){
var i=0;
var timer=null;
for (var j = 0; j < $('.imgs li').length; j++) { //创建圆点
$('.nums').append('<li></li>')
}
$('.nums li').first().addClass('active'); //给第一个圆点添加样式
var firstimg=$('.imgs li').first().clone(); //复制第一张图片
$('.imgs').append(firstimg).width($('.imgs li').length*($('.imgs img').width()));
//第一张图片放到最后一张图片后，设置ul的宽度为图片张数*图片宽度
$('.des').width($('.imgs li').length*($('.imgs img').width()));
// 下一个按钮
$('.next').click(function(){
i++;
if (i==$('.imgs li').length) {
i=1; //这里不是i=0
$('.imgs').css({left:0}); //保证无缝轮播，设置left值
};
$('.imgs').stop().animate({left:-i*1200},300);
if (i==$('.imgs li').length-1) { //设置小圆点指示
$('.nums li').eq(0).addClass('active').siblings().removeClass('active');
$('.des li').eq(0).removeClass('hide').siblings().addClass('hide');
}else{
$('.nums li').eq(i).addClass('active').siblings().removeClass('active');
$('.des li').eq(i).removeClass('hide').siblings().addClass('hide');
}
})
// 上一个按钮
$('.prev').click(function(){
i--;
if (i==-1) {
i=$('.imgs li').length-2;
$('.imgs').css({left:-($('.imgs li').length-1)*1200});
}
$('.imgs').stop().animate({left:-i*1200},300);
$('.nums li').eq(i).addClass('active').siblings().removeClass('active');
$('.des li').eq(i).removeClass('hide').siblings().addClass('hide');
})
//设置按钮的显示和隐藏
$('.banner').hover(function(){
$('.btns').show();
},function(){
$('.btns').hide();
})
//鼠标划入圆点
$('.nums li').mouseover(function(){
var _index=$(this).index();
$('.imgs').stop().animate({left:-_index*1200},300);
$('.nums li').eq(_index).addClass('active').siblings().removeClass('active');
$('.des li').eq(_index).removeClass('hide').siblings().addClass('hide');
})
//定时器自动播放
timer=setInterval(function(){
i++;
if (i==$('.imgs li').length) {
i=1;
$('.imgs').css({left:0});
};
$('.imgs').stop().animate({left:-i*1200},300);
if (i==$('.img li').length-1) {
$('.nums li').eq(0).addClass('active').siblings().removeClass('active');
$('.des li').eq(0).removeClass('hide').siblings().addClass('hide');
}else{
$('.nums li').eq(i).addClass('active').siblings().removeClass('active');
$('.des li').eq(i).removeClass('hide').siblings().addClass('hide');
}
},3000)
//鼠标移入，暂停自动播放，移出，开始自动播放
$('.banner').hover(function(){
clearInterval(timer);
},function(){
timer=setInterval(function(){
i++;
if (i==$('.imgs li').length) {
i=1;
$('.imgs').css({left:0});
};
$('.imgs').stop().animate({left:-i*1200},300);
if (i==$('.img li').length-1) {
$('.nums li').eq(0).addClass('active').siblings().removeClass('active');
$('.des li').eq(0).removeClass('hide').siblings().addClass('hide');
}else{
$('.nums li').eq(i).addClass('active').siblings().removeClass('active');
$('.des li').eq(i).removeClass('hide').siblings().addClass('hide');
}
},3000)
})
})