完美JQuery图片切换效果的简单实现

下面小编就为大家带来一篇完美JQuery图片切换效果的简单实现。小编觉得挺不错的，现在就分享给大家，也给大家做个参考。

css：

body { font-family:"Microsoft Yahei"; }

body,ul,li,img,h3,dl,dd,dt,h1{margin:0px;padding:0px;list-style:none;}  

img{vertical-align: top;}

/***大图切换***/

.scroll_view{margin: 0px auto;overflow:hidden;position: relative;}

.photo_view li{position:absolute;width: 100%;}

.photo_view li em,.photo_view li h3{position: absolute;bottom: 0px;z-index: 1;height: 35px;line-height: 35px;width: 100%;left: 0px;}

.photo_view li em{z-index: 1;background:rgba(0,0,0,0.5);filter: progid:DXImageTransform.Microsoft.gradient( GradientType = 0,startColorstr = '#50000000',endColorstr = '#50000000');_background:#000;}

.photo_view li h3{z-index: 2;text-indent: 1em;font-weight: normal;}

.photo_view li h3 a{color:#fff;}

.photo_view li h3 a:hover{color:#f60;}

.small_photo{position: absolute;bottom: 40px;right: 10px;cursor: pointer;z-index: 4;}

.small_photo li {float: left;padding-right: 10px;}

.small_photo li img{width: 80px;height: 35px;border: solid 2px #ccc;border-radius: 2px;} .small_photo li.active img{border: solid 2px #f60;}

html：

<!-- start:大图切换-->

<div class="scroll_view">

  <ul class="photo_view">

    <li><img src="images/ad1.jpg" alt="" class="" /><em></em><h3><a href="javascript:void(0);">图片效果1</a></h3></li>

    <li><img src="images/ad2.jpg" alt="" class="" /><em></em><h3><a href="javascript:void(0);">图片效果2</a></h3></li>

    <li><img src="images/ad3.jpg" alt="" class="" /><em></em><h3><a href="javascript:void(0);">图片效果3</a></h3></li>

    <li><img src="images/ad4.jpg" alt="" class="" /><em></em><h3><a href="javascript:void(0);">图片效果4</a></h3></li>

  </ul>

  <ul class="small_photo"></ul>

</div>

<!-- End:大图切换-->

js：

$.fn.extend({  

  imgScroll:function(options){    

    var def={phtot_parent:$(".scroll_view"),photo_view:$(".photo_view"),small_photo:$(".small_photo") ,speed:800,isauto:true,width:800,height:349},

      opt=$.extend({},def,options),

      $photo_view=opt.photo_view,

      $small_photo=opt.small_photo,

      speed=opt.speed,

      isauto=opt.isauto,

      index=0,

      _length=$photo_view.find("li").length,

      strTime=null;

    opt.phtot_parent.css({width:opt.width,height:opt.height});

    $photo_view.find("li:not(:first)").hide()//.find("img").hide();

    $photo_view.find("li").each(function(i){

      $small_photo.append('<li><img src="'+$(this).find("img").attr("src")+'" alt="" class="" /></li>');

    })

    $small_photo.find("li:first").addClass("active");

    //小图鼠标动作

    $small_photo.find("li").bind("mouseenter",function(){  

      clearInterval(strTime);

      if(index!=$(this).index()){

        index=$(this).index();  

        animate(index)

      }

    }).bind("mouseleave",function(){      

      if(isauto){

        start();  

      }

    });

    //大图悬停动作

    $photo_view.find("li").bind("mouseenter",function(){  

      clearInterval(strTime);      

    }).bind("mouseleave",function(){      

      if(isauto){

        start();  

      }

    });

    //自动播放

    if(isauto){

      start();  

    }