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      手动轮播图,为轮播图中的一种,轮播图主要有无缝轮播,手动轮播,延迟轮播,切换轮播等等。。。

轮播图主要用于展现图片,新出商品,词条,又能美观网页。給网页中增加动态效果。

手动轮播,是小编认为最简单的一种轮播方式,既能左右翻页,还能通过悬浮按钮,快速预览图片,所以今天就给大家写一个原生js手动轮播图。

 

 

 

 

 

一,利用JavaScript制作手动轮播图,首先排版。

引入默认样式表(可以手写);

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<link rel="stylesheet" href="css/Default style sheet.css" />//本博客有css默认样式表可以下载。

 div排版布局:

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<body><br>  <div id="box"><br>         <div id="lunbo"><img src="img/1.jpg" id="img"/></div><br>         <div id="left"><</div><br>           <div id="right">></div><br>          <div id="radiu"><br>              <ul><br>                  <li>1</li><br>                  <li>2</li><br>                  <li>3</li><br>                  <li>4</li><br>                  <li>5</li><br>              </ul><br>         </div><br>        </div>
    </body>

 二,定义div的CSS样式,给div设置宽高,定位。

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<style>
            body{<br>               background: darkturquoise;<br>          }<br>           #box{<br>               height:320px;<br>               width:480px;<br>                margin: 3px auto;<br>               border: 2px solid red;<br>          }<br>           #lunbo{<br>             height: 292px;<br>              width:453px;<br>                border: 1px solid yellow;<br>               margin: 0px auto;<br>               position: relative;<br>         }<br>           #left{<br>              height: 60px;<br>               width: 60px;<br>                font-size: 60px;<br>                text-align: center;<br>             line-height: 60px;<br>              position: absolute;<br>             top:150px;<br>              left: 440px;<br>                color: black;<br>           }<br>           #right{<br>             height: 60px;<br>               width: 60px;<br>                font-size: 60px;<br>                text-align: center;<br>             line-height: 60px;<br>              position: absolute;<br>             top:150px;<br>              left: 880px;<br>                color: black;<br>           }<br>       #radiu{<br>             height: 30px;<br>               width: 240px;<br>               text-align: center;<br>             <br>                margin: 0px auto;<br>           }<br>           #radiu li{<br>              float: left;<br>                background: white;<br>              height: 30px;<br>               width: 30px;<br>                line-height: 30px;<br>              border-radius:50% ;<br>             margin-right:6px;<br>           }<br>           .active{<br>                background: orange;<br>             color: ;<br>            }
        </style>

 原生js代码:

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<script>
                window.onload=function(){<br>               var ridiu=document.getElementById("radiu")<br>              var right=document.getElementById("right");<br>             var left=document.getElementById("left")<br>                var img=document.getElementById("img");<br>             var oli=ridiu.getElementsByTagName("li")<br>                var arry=['img/1.jpg','img/2.jpg','img/3.jpg','img/4.jpg','img/5.jpg']<br>             var a=null;<br>           <br>                   right.onclick=function(){<br>                       a++<br>                     if(a>arry.length-1){<br>                         a=0;<br>                            }<br>                   <br>                        img.src=arry[a]<br>           }<br>                 left.onclick=function(){<br>                        a--<br>                     if(a<0){<br>                         a=arry.length-1;<br>                            }<br>                   <br>                            img.src=arry[a]<br>             <br>                }<br>                   <br>                    for (var i=0;i<oli.length;i++) {<br>                     <br>                        oli[i].onclick=function(){<br>                          a++<br>                     if(a==arry.length){<br>                         a=0;<br>                            }<br>                           img.src=arry[a];<br>                        }<br>                       <br>                    }<br>           <br>            }
        </script><br>

 HTML全部效果代码:

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<!DOCTYPE html><br><html><br>   <head><br>        <meta charset="utf-8"><br>        <title>手动轮播图</title><br>        <link rel="stylesheet" href="css/Default style sheet.css" /><br>      <style><br>           body{<br>               background: darkturquoise;<br>          }<br>           #box{<br>               height:320px;<br>               width:480px;<br>                margin: 3px auto;<br>               border: 2px solid red;<br>          }<br>           #lunbo{<br>             height: 292px;<br>              width:453px;<br>                border: 1px solid yellow;<br>               margin: 0px auto;<br>               position: relative;<br>         }<br>           #left{<br>              height: 60px;<br>               width: 60px;<br>                font-size: 60px;<br>                text-align: center;<br>             line-height: 60px;<br>              position: absolute;<br>             top:150px;<br>              left: 440px;<br>                color: black;<br>           }<br>           #right{<br>             height: 60px;<br>               width: 60px;<br>                font-size: 60px;<br>                text-align: center;<br>             line-height: 60px;<br>              position: absolute;<br>             top:150px;<br>              left: 880px;<br>                color: black;<br>           }<br>       #radiu{<br>             height: 30px;<br>               width: 240px;<br>               text-align: center;<br>             <br>                margin: 0px auto;<br>           }<br>           #radiu li{<br>              float: left;<br>                background: white;<br>              height: 30px;<br>               width: 30px;<br>                line-height: 30px;<br>              border-radius:50% ;<br>             margin-right:6px;<br>           }<br>           .active{<br>                background: orange;<br>             color: ;<br>            }<br>       </style><br>      <script><br>          window.onload=function(){<br>               var ridiu=document.getElementById("radiu")<br>              var right=document.getElementById("right");<br>             var left=document.getElementById("left")<br>                var img=document.getElementById("img");<br>             var oli=ridiu.getElementsByTagName("li")<br>                var arry=['img/1.jpg','img/2.jpg','img/3.jpg','img/4.jpg','img/5.jpg']<br>             var a=null;<br>           <br>                   right.onclick=function(){<br>                       a++<br>                     if(a>arry.length-1){<br>                         a=0;<br>                            }<br>                   <br>                        img.src=arry[a]<br>           }<br>                 left.onclick=function(){<br>                        a--<br>                     if(a<0){<br>                         a=arry.length-1;<br>                            }<br>                   <br>                            img.src=arry[a]<br>             <br>                }<br>                   <br>                    for (var i=0;i<oli.length;i++) {<br>                     <br>                        oli[i].onclick=function(){<br>                          a++<br>                     if(a==arry.length){<br>                         a=0;<br>                            }<br>                           img.src=arry[a];<br>                        }<br>                       <br>                    }<br>           <br>            }<br>       </script><br> </head><br>   <body><br>        <div id="box"><br>            <div id="lunbo"><img src="img/1.jpg" id="img"/></div><br>         <div id="left"><</div><br>           <div id="right">></div><br>          <div id="radiu"><br>              <ul><br>                  <li>1</li><br>                  <li>2</li><br>                  <li>3</li><br>                  <li>4</li><br>                  <li>5</li><br>              </ul><br>         </div><br>        </div><br>    </body><br></html><br>

 效果图:

body{
                background: darkturquoise;
            }
            #box{
                height:320px;
                width:480px;
                margin: 3px auto;
                border: 2px solid red;
            }
            #lunbo{
                height: 292px;
                width:453px;
                border: 1px solid yellow;
                margin: 0px auto;
                position: relative;
            }
            #left{
                height: 60px;
                width: 60px;
                font-size: 60px;
                text-align: center;
                line-height: 60px;
                position: absolute;
                top:150px;
                left: 440px;
                color: black;
            }
            #right{
                height: 60px;
                width: 60px;
                font-size: 60px;
                text-align: center;
                line-height: 60px;
                position: absolute;
                top:150px;
                left: 880px;
                color: black;
            }
        #radiu{
                height: 30px;
                width: 240px;
                text-align: center;
                
                margin: 0px auto;
            }
            #radiu li{
                float: left;
                background: white;
                height: 30px;
                width: 30px;
                line-height: 30px;
                border-radius:50% ;
                margin-right:6px;
            }
            .active{
                background: orange;
                color: ;
            }

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