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  • JQ实现图片切换

     
      1 <!DOCTYPE html>
      2 <html>
      3 <head>
      4     <meta http-equiv="content-type" content="text/html;charset=utf-8">
      5     <title></title>
      6     <meta http-equiv="X-UA-Compatible" content="IE=Edge">
      7     <meta content="always" name="referrer">
      8     <meta name="theme-color" content="#2932e1">
      9     <script src="http://libs.baidu.com/jquery/1.9.0/jquery.js" type="text/javascript"></script>
     10     <link href="base.css" rel="stylesheet" type="text/css" />
     11     <style type="text/css" media="screen">
     12     .al{height: 600px; 1000px;position: relative;margin: 30px auto 0;}
     13     .wrap,.imgbox,.num{height: 600px; 1000px;position: absolute;overflow: hidden;}
     14     .imgbox li{height: 600px; 1000px;float: left;}
     15     .imgbox li img{height: 600px; 1000px;display: inline-block;}
     16     .numbox{height: 30px;300px;position: absolute;bottom: 30px;right: 280px;}
     17     .numbox li{ 15px;height: 15px;font-size: 16px;color: #fff; text-align: center;line-height: 30px;border-radius:50%;float: left;margin-left:10px;background: blue;}
     18     .numbox .select{ 15px;height: 15px;font-size: 16px;color: #fff; text-align: center;line-height: 30px;border-radius:50%;float: left;margin-left:10px;background: red;}
     19     .left,.right{ 41px;height: 69px;position: absolute;display: inline-block;z-index: 9999;}
     20     .left{top:280px;left:0;background:url(images/icon.png)-84px 0 no-repeat;}
     21     .right{top:280px;right:0;background:url(images/icon.png)-125px 0 no-repeat;}
     22     .left:hover{background: url(images/icon.png)0 0 no-repeat;}
     23     .right:hover{background: url(images/icon.png)-43px 0 no-repeat;}
     24     </style>
     25 </head>
     26 <body>
     27     <div class="al">
     28         <a href="#" class="left"></a>
     29         <a href="#" class="right"></a>
     30         <div class="wrap">
     31             <ul class="imgbox">
     32                 <li><img src="images/bg1.jpg" alt="" /></li>
     33                 <li><img src="images/bg2.jpg" alt="" /></li>
     34                 <li><img src="images/bg3.jpg" alt="" /></li>
     35                 <li><img src="images/bg4.jpg" alt="" /></li>
     36                 <li><img src="images/bg5.jpg" alt="" /></li>
     37             </ul>    
     38         </div>
     39         <div class="num">
     40             <ul class="numbox">
     41                 <li class="select"></li>
     42                 <li></li>
     43                 <li></li>
     44                 <li></li>
     45                 <li></li>
     46             </ul>
     47         </div>
     48         
     49     </div>
     50     <script>
     51      /*   var time = "";
     52          var index = 1;
     53          $(function () {
     54              showimg(index);
     55              //鼠标移入移出
     56              $(".numbox li").hover(function () {
     57                 clearTimeout(time);
     58                 var ind=$(this).index();
     59                 $(this).addClass('select').siblings().removeClass('select');
     60                 $(".imgbox li").hide().stop(true,true).eq(ind).fadeIn("slow");
     61              }, function () {
     62                 index=$(this).index()+2> 5 ? 1 :$(this).index()+2;
     63                 time = setTimeout("showimg(" + index+ ")", 3000);
     64              });
     65          });
     66  
     67          function showimg(num) {
     68              index = num;
     69              $(".numbox li").removeClass("select").eq(index-1).addClass("select");
     70              $(".imgbox li").hide().stop(true,true).eq(index-1).fadeIn("slow");
     71              index = index + 1 > 5 ? 1 : index + 1;
     72              time = setTimeout("showimg(" + index + ")", 3000);
     73          }*/
     74         
     75              var index=1;
     76              var timer="";
     77              autopl(index);
     78              $('.numbox li').mouseover(function(){
     79                  clearTimeout(timer);
     80                  var num=$(this).index();
     81                  $(this).addClass('select').siblings().removeClass('select');
     82                  $('.imgbox li').eq(num).fadeIn('slow').siblings().hide();
     83              });
     84              $('.numbox li').mouseout(function(){
     85                  index=$(this).index()+2> 5 ? 1 :$(this).index()+2;
     86                 timer = setTimeout("autopl(" + index+ ")", 3000);
     87              });
     88 
     89              function autopl(numb){
     90                  index =numb;
     91                  $('.numbox li').eq(index-1).addClass('select').siblings().removeClass('select');
     92                  $('.imgbox li').eq(index-1).fadeIn('slow').siblings().hide();
     93                  index=index+1 > 5 ? 1 : index + 1;
     94                  timer = setTimeout('autopl(' +index+ ')',3000);
     95              }
     96              $('.left').click(function(){
     97                  clearTimeout(timer);
     98                  var ind=$('.numbox li').index($('.select'));
     99                  var inde=ind+1>1?ind-1:4;
    100                  $('.numbox li').eq(inde).addClass('select').siblings().removeClass('select');
    101                  $('.imgbox li').eq(inde).fadeIn('slow').siblings().hide();
    102                  index=inde+1<5?inde+1:0;
    103                  timer=setTimeout('autopl('+index+')',3000);
    104              })
    105              $('.right').click(function(){
    106                  clearTimeout(timer);
    107                  var ind=$('.select').index();
    108                  var inde=ind+1<5?ind+1:0;
    109                  $('.numbox li').eq(inde).addClass('select').siblings().removeClass('select');
    110                  $('.imgbox li').eq(inde).fadeIn('slow').siblings().hide();
    111                  index=inde+1<5?inde+1:0;
    112                  timer=setTimeout('autopl('+index+')',3000);
    113              })
    114         
    115     </script>
    116 
    117 </body>
    118 </html>




    //改进版本
    <!DOCTYPE html>
    <html>
    <head>
        <meta charset="UTF-8">
        <title>轮播图</title>
        <style type="text/css">
            *{ margin: 0; padding: 0; text-decoration: none;}
            #container {  600px; overflow: hidden; position: relative;height: 400px;border:1px solid red;margin:50px auto;}
            #list { position: relative; z-index: 1; 600px;height: 400px;}
            #list img {position: absolute; 600px;height:400px;top:0;left:0; }
            #buttons { position: absolute;  200px; z-index: 2; bottom: 20px; left: 50%;text-align: center;margin-left: -100px;font-size: 0}
            #buttons span {font-size: 16px;color: #fff;font-weight: bold;display: inline-block; 20px; height: 20px;border-radius: 50%;background:gray;text-align: center;cursor:pointer;margin-left: 5px;}
            .arrow { cursor: pointer; 40px; height: 40px;  position: absolute; z-index: 2; top: 50%;margin-top: -20px;}
            #prev { left: 20px;background: url(img/prev.png)0 0 no-repeat;background-size: 100% 100%;}
            #next { right: 20px;background: url(img/next.png)0 0 no-repeat;background-size: 100% 100%;}
            #buttons .select{background: #fff;color: red;}
        </style>
         <script type="text/javascript" src="js/jquery.1.10.2.js"></script>
        <script type="text/javascript">
            $(function(){
                if($('#list img').size()!=$('#buttons span').size()){
                    return false;
                }
                var len=$('#list img').size();
                var index=$('.select').index('.num');
                var timer=null;
                $('#next').click(function(){
                    index += 1;
                    if(index==len){
                        index=0;
                        $('#list img').eq(index).show().siblings().hide();
                        $('#buttons span').eq(index).addClass('select').siblings().removeClass('select');
                    }else{
                         $('#list img').eq(index).show().siblings().hide();
                         $('#buttons span').eq(index).addClass('select').siblings().removeClass('select');
                    }
                })
    
                $('#prev').click(function(){
                    index -= 1;
                    if(index==-1){
                        index=len-1;
                        $('#list img').eq(index).show().siblings().hide();
                        $('#buttons span').eq(index).addClass('select').siblings().removeClass('select');
                    }else{
                         $('#list img').eq(index).show().siblings().hide();
                         $('#buttons span').eq(index).addClass('select').siblings().removeClass('select');
                    }
                })
                $('.num').click(function(){
                    index=$(this).index('.num');
                    $('#list img').eq(index).show().siblings().hide();
                    $('#buttons span').eq(index).addClass('select').siblings().removeClass('select');   
                })
    
               function play(){
                 timer=setTimeout(function(){
                    $("#next").trigger('click');
                    play();
                 }, 3000);
               }
    
               function stop(){
                clearTimeout(timer);
               }
    
               $("#container").hover(stop,play);
                play();
            })
        </script>
    </head>
    <body>
    
    <div id="container">
        <div id="list" style="left:0px;">
            <img src="img/1.jpg" alt="1" style="z-index:5;" />
            <img src="img/2.jpg" alt="2"/>
            <img src="img/3.jpg" alt="3"/>
            <img src="img/4.jpg" alt="4"/>
            <img src="img/5.jpg" alt="5"/>
        </div>
        <div id="buttons">
            <span class="num select">1</span>
            <span class="num">2</span>
            <span class="num">3</span>
            <span class="num">4</span>
            <span class="num">5</span>
        </div>
        <a href="javascript:;" id="prev" class="arrow"></a>
        <a href="javascript:;" id="next" class="arrow"></a>
    </div>
    
    </body>
    </html>
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  • 原文地址:https://www.cnblogs.com/mk2016/p/5464384.html
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