基于javascript实现图片左右切换效果

2019-11-20 10:42:03

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本文实例介绍了javascript实现图片左右切换效果的详细代码，分享给大家供大家参考，具体内容如下

效果图：

具体代码：

<html>  <head>    <title>JS图片左右切换效果</title>    <meta charset="utf-8"/>    <style type="text/css">      *{        margin:0;        padding:0;             }                   .images-scroll{        border:1px solid #CCC;        margin:100px auto;        width:300px;        height:200px;        position:relative;      }               .images-scroll ul{        list-style:none;      }       .images-scroll li{        float:left;         display:none;            }       .images-scroll .active{        display:block;      }       .images-scroll a{               }       .images-scroll img{        width:300px;        height:200px;        border:none;      }                         .images-scroll .left-scroll{        position:absolute;        top:40%;        left:-40px;        opacity:0;        background:url("images/bg_direction_nav.png");        background-repeat:no-repeat;        background-position:0px 0px;        height:27px;        width:27px;        cursor:pointer;      }       .images-scroll .right-scroll{        position:absolute;        top:40%;        opacity:0;        right:-40px;        background:url("images/bg_direction_nav.png");        background-repeat:no-repeat;        background-position:-30px 0px;        height:27px;        cursor:pointer;        width:27px;             }         .images-scroll .right-scroll:hover{        background-color:transparent;      }     </style>    <script src="jquery-1.8.2.js"></script>  </head>  <body>         <div id="images-scroll" class="images-scroll">      <ul>        <li class="active"><a href=""><img src="images/1.jpg" alt=""></a></li>        <li><a href=""><img src="images/2.jpg" alt=""></a></li>        <li><a href=""><img src="images/3.jpg" alt=""></a></li>        <li><a href=""><img src="images/4.jpg" alt=""></a></li>      </ul>      <span id="left-scroll" class="left-scroll"></span>      <span id="right-scroll" class="right-scroll"></span>    </div>    <script type="text/javascript">         $("#images-scroll").mouseover(function(){        $("#left-scroll").animate({left: '10px',opacity:'1',},400);        $("#right-scroll").animate({right: '10px',opacity:'1',},400);      })      $("#images-scroll").mouseleave(function(){        $("#left-scroll").animate({left: '-40px',opacity:'0',},400);        $("#right-scroll").animate({right: '-40px',opacity:'0',},400);              })       imgScroll=setInterval("runScroll()",3000);      var last_idx=$("#images-scroll ul li").index($("#images-scroll ul li:last"));      function runScroll(){                  var idx=$("#images-scroll ul li").index($("#images-scroll ul .active")[0]);        $("#images-scroll li").eq(idx).removeClass("active").hide();        idx+=1;        if(idx%(last_idx+1)==0){          idx=0;        }        $("#images-scroll li").eq(idx).addClass("active").show();      }      $("#left-scroll").click(function(){        var idx=$("#images-scroll ul li").index($("#images-scroll ul .active")[0]);        $("#images-scroll li").eq(idx).removeClass("active").hide();        idx-=1;        if(idx==-1){          idx=last_idx;        }        $("#images-scroll li").eq(idx).addClass("active").show();      })      $("#right-scroll").click(function(){        runScroll();      })         </script>       </body></html>

以上就是本文的全部内容，希望对大家学习javascript程序设计有所帮助。

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