jQuery简单实现banner图片切换


主要运用了定时器的原理,bind,trigger应用等

复制代码 代码如下:

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>banner切换实现</title>
    <style type="text/css">
        /*
        * @description: banner切换样式
        * @author: lanfeng(beryl)
        * @time:2013-02-26
        */
        /* reset*/
        *{ margin: 0; padding: 0;}
        body{font:12px/1.5 Tahoma,'\5B8B\4F53',arial,Tahoma,helvetica,sans-serif; color:#333333;background-color:#ffffff;position:relative; }
        h1,h2,h3,h4,h5,h6{font-size:100%}
        address,em{font-style:normal;}
        code,kbd,pre,samp{font-family:courier new,courier,monospace;}
        ul,ol{list-style:none outside none;}
        fieldset,img{border:0;}
        img{vertical-align:middle}
        table{border-collapse:collapse;border-spacing:0;font-size:inherit;*font-size:100%;}
        input,button,textarea,select{vertical-align:middle;font:100% Helvetica,Arial,sans-serif; color:inherit}
        .clearfix:after{content:'.';display:block;height:0;clear:both;visibility:hidden;}
        .clearfix{*zoom:1;}
        .clear{font-size:0;line-height:0;height:0;clear:both;visibility:hidden;overflow:hidden;}

        .d-ftab{ width:510px; height: 180px;position: relative; margin: 100px auto;}
        .d-fShow ul li{ float: left; width: 510px; height: 180px;}
        .d-fShow{ width: 510px; height: 180px; overflow: hidden;}
        .d-fShow img{ width: 510px; height: 180px; float: left;}
        .d-fs-control{ position: absolute; width:510px; position: absolute; left: 0; bottom: 0; height: 25px; line-height: 25px;


background: rgba(0,0,0,0.4);
        filter:progid:DXImageTransform.Microsoft.Gradient(GradientType=0,StartColorStr='#66000000',

EndColorStr='#66000000') ;  }
        :root  .d-fs-control{filter:progid:DXImageTransform.Microsoft.Gradient(GradientType=0,StartColorStr='#66000000'

,EndColorStr='#66000000')\9 ;}
        .d-fs-control ul{ position: absolute; bottom:3px; right: 5px; height: 16px;}
        .d-fs-control ul li{width:16px;height:16px; background:#777675;border-radius: 2px 2px 2px 2px; float:left;margin-left:5px;

color:#dcdcdc;text-align:center;font-weight:700;cursor:pointer;line-height:16px;filter: alpha(opacity=70); opacity: 0.7;}
        .d-fs-control ul li:hover,.d-fs-control ul li.select{background:#ffffff;color:#ff6700;}

    </style>
    <script type="text/javascript" src="js/jquery-1.4.2.min.js"></script>
    <script type="text/javascript">
      $(function(){
        var wrap =$('.d-ftab');
          var imgs = wrap.find('.d-fShow ul >li');
          var len=imgs.length  ;
          var tabTime=100;
          var outTime=4000;
          var select='select';
          var num =0 ;
          var interval;
          var type = 'click';
          var btns=wrap.find('.d-fs-control ul>li');
    btns.bind(type,function(){
              var _this=$(this);
              _this.addClass('select').siblings ().removeClass('select');
              num=_this.prevAll().length;
              imgs.stop().eq(num).fadeTo(tabTime,1)  ;
              imgs.not(':eq('+num+')').filter(':visible').fadeOut(tabTime) ;
              return false;
}).eq(num).trigger(type);
          var interFunc=function(){
              num=(num+1)%len;
              btns.eq(num).triggerHandler(type);
          }
          wrap.bind('mouseover',function(){
              clearInterval(interval);
          }).bind('mouseout',function(){
                      interval=setInterval(interFunc,outTime)
                  })

      })
    </script>
</head>
<body>
<div class="d-ftab">
    <div class="d-fShow">
        <ul>
            <li>
                <a href="#"><img alt="" src=" images/1.jpg"/>
                </a>
            </li>
            <li >
                <a href="#"><img alt="" src="images/2.png">
                </a>
            </li>
            <li>
                <a href="#"><img alt=""  src="images/3.jpg">
                </a>
            </li>
            <li>
                <a href=""><img alt="" src="images/4.jpg">
                </a>
            </li>
            <li>
                <a href="#"><img alt="" src="images/5.jpg">
                </a>
            </li>
        </ul>
    </div>
    <div class="d-fs-control">
        <ul>
            <li>1</li>
            <li>2</li>
            <li>3</li>
            <li>4</li>
            <li class="select">5</li>
        </ul>
    </div>
</div>
</body>
</html>


效果如下图:



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