jquery 图片自动切换

时间：2023-03-10 06:32:38
jquery 图片自动切换 
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

 <html xmlns="http://www.w3.org/1999/xhtml">

 <head>

 <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />

 <title>JQUERY实现图片自动切换</title>

 <style>

 body{margin:0px; padding:0px; font-family:Arial}

 ul{list-style:none;margin:0px;padding:0px}

 .click_out{margin-left:5px; float:left; text-align:center; height:16px; line-height:16px; width:16px; background:#333; color:#FFF; font-weight:bold; font-size:12px; cursor:pointer;_display:inline-block; }

 .click_over{margin-left:5px; float:left;text-align:center; height:16px; line-height:16px; width:16px; background:#820000; color:#FFF; font-weight:bold; font-size:12px; cursor:pointer; _display:inline-block; }

 </style>

 <script language="javascript" src="../Script/jquery-1.4.4.min.js"></script>

 </head>

 <body>

   <div style="height:230px; width:980px; background:#EBEBEB; position:relative" id="flash_outer">

      <div style=" position:absolute; left:0px; top:0px; width:980px; height:230px; overflow:hidden" id="flash_pic">

         <div style="width:980px; height:250px; background:url(flash_pic/1.jpg)"></div>

         <div style="width:980px; height:250px; background:url(flash_pic/2.jpg)"></div>

         <div style="width:980px; height:250px; background:url(flash_pic/3.jpg)"></div>

         <div style="width:980px; height:250px; background:url(flash_pic/4.jpg)"></div>

      </div>

      <ul style="position:absolute; right:0px; bottom:0px; height:16px" id="flash_num">

        <li class="click_over">1</li>

        <li class="click_out">2</li>

        <li class="click_out">3</li>

        <li class="click_out">4</li>

      </ul>

   </div>

 <script language="javascript">

 $(document).ready(function()

 {

    var len=$("#flash_num>li").length;

    var index=1;

    var int;

    function showSys(num)  //图片切换函数

    {

     $("#flash_num>li").removeClass().addClass("click_out").eq(num).toggleClass("click_out").addClass("click_over");

     $("#flash_pic>div").fadeOut().eq(num).fadeIn();

    }

    function ziDong()  //自动切换

    {

     if(index==len)

     {

      index=0;

     }

     showSys(index);

     index=index+1;

    }

    int=setInterval(ziDong,3000);

    $("#flash_num>li").click(function(） //点击切换

    {

     var index_num=$("#flash_num>li").index(this);

     showSys(index_num);

     index=index_num+1;  //改变全局变量的值，以便鼠标移开的时候能够衔接上

     //$(".click_out").removeClass("click_over").eq(index).addClass("click_over");

     //$(".click_out").eq(index).removeClass().addClass("click_over");

        //alert(index);

    });

    $("#flash_outer").mouseover(function()  //移动到上面时停止自动切换

        {

         clearInterval(int);

        });

    $("#flash_outer").mouseout(function()  //移开时继续自动切换

        {

         int=setInterval(ziDong,3000);

        });

 });

 </script>

 </body>

 </html>

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