jquery 产品查看放大镜组件

<!doctype html>

<html>

<head>

<meta charset="utf-8">

<title>图片放大镜</title>

</head>

<style>

*{ padding:0; margin:0}

.fdj{}

.fdj .small-wrap{ overflow:hidden; float:left}

.fdj .small-main{ width:266px; height:231px; position:relative}

.fdj .small-main img{ width:100%; height:100%}

.fdj .small-main .mask{ display:none; cursor:crosshair; position:absolute; left:0; top:0;width:100px; height:80px; background:rgba(0,0,0,.3)}

.fdj .bot-main{ width:266px; height:70px; overflow:hidden; position:relative;background-color: #F1F0F0; margin-top:2px;}

.fdj .bot-main .btn{ z-index:99; cursor:pointer; position:absolute; top:0; width:14px; height:70px; background-color:#ccc; color:#fff; line-height:70px; text-align:center}

.fdj .bot-main .prev{ left:0;}

.fdj .bot-main .next{ right:0;}

.fdj .bot-main .pic-list{ width:238px; height:70px; position:absolute; left:14px;}

.fdj .bot-main .list{ width:3000px; position:absolute; left:0; top:0;}

.fdj .bot-main .list li{ float:left; list-style:none}

.fdj .bot-main .list img{ width:70px; height:46px; margin:12px 0 0 4px;border:2px solid #F1F0F0}

.fdj .bot-main .list .active img{border:2px solid #959595}

.fdj .big-wrap{width:266px; height:231px; border:1px solid #ccc; float:left; overflow:hidden; display:none; position:relative}

.fdj .big-wrap img{ position:absolute; left:0; top:0; min-width:600px; min-height:700px;}

</style>

<body>

<div class="fdj imageZoom">

    <div class="small-wrap">

        <div class="small-main">

            <img src="http://0.thumb.pc6.com/thumb/up/2016-1/2016126154311097190_225_260.jpg">

            <div class="mask"></div>

        </div>

        <div class="bot-main">

            <span class="btn prev">《</span>

            <div class="pic-list">

                <ul class="list">

                    <li class="active"><img src="http://0.thumb.pc6.com/thumb/up/2016-1/2016126154311097190_225_260.jpg"></li>

                    <li><img src="http://www.guanfang123.com/Uploads/Picture/20150925/5604e6e0ced0c.jpg"></li>

                    <li><img src="http://www.guanfang123.com/Uploads/Picture/20150925/5604e6888e257.jpg"></li>

                    <li><img src="http://www.guanfang123.com/Uploads/Picture/20150925/5604e5bedce24.jpg"></li>

                    <li><img src="http://www.guanfang123.com/Uploads/Picture/20150925/5604e481ac8e8.png"></li>

                    <li><img src="http://www.guanfang123.com/Uploads/Picture/20150925/5604e2c9725f8.jpg"></li>

                    <li><img src="http://www.guanfang123.com/Uploads/Picture/20150923/56023b44d65e2.jpg"></li>

                </ul>

            </div>

            <span class="btn next">》</span>

        </div>

    </div>

    <div class="big-wrap"><img src="http://0.thumb.pc6.com/thumb/up/2016-1/2016126154311097190_225_260.jpg"></div>

</div>

<script src="soft/js/global.js"></script>

<script>

;(function(){

    $.fn.imageZoom = function(options){

        var defaults = {};

        var sets = $.extend(defaults , options);

        this.each(function(){

            var _this=$(this);

            var small_wrap=_this.find(".small-main");//小图

            var big_wrap=_this.find(".big-wrap");//大图

            var mask=_this.find(".mask");//遮罩

            var oul=_this.find('ul');

            var oli=oul.find('li');

            var i=0,small_w,small_h,big_w,big_h,blc_w,blc_h;

            oul.width(oli.outerWidth(true)*oli.length);

            //切换缩略图

            _this.find('.next').click(function(){

                i>=oli.length-3?i=0:i++;

                oul.animate({'left':-i*oli.outerWidth(true)});

            });

            _this.find('.prev').click(function(){

                i<=0?i=oli.length-3:i--;

                oul.animate({'left':-i*oli.outerWidth(true)});

            });

            oli.hover(function(){

                var _src=$(this).find("img").attr('src');

                $(this).addClass("active").siblings().removeClass("active");

                small_wrap.find("img").attr("src",_src);

                big_wrap.find("img").attr("src",_src);

            });

            //小图移动

            small_wrap.mousemove(function(e){

                small_w=small_wrap.width()-mask.width();

                small_h=small_wrap.height()-mask.height();

                big_w=big_wrap.find("img").width()-big_wrap.width();

                big_h=big_wrap.find("img").height()-big_wrap.height();

                blc_w=small_w/big_w;

                blc_h=small_h/big_h;

                mask.show();

                big_wrap.show();

                var maskLeft = mask.position().left;

                var maskTop = mask.position().top;

                var X=e.pageX-mask.width()/2;

                var Y=e.pageY-mask.height()/2;

                if(X<=0){X=0};

                if(Y<=0){Y=0};

                if(X>=$(this).width()-mask.width()){

                    X=$(this).width()-mask.width()

                };

                if(Y>=$(this).height()-mask.height()){

                    Y=$(this).height()-mask.height()

                };

                mask.css({'left':X,'top':Y});

                big_wrap.find("img").css({'left':-X/blc_w,'top':-Y/blc_h});

            }).mouseout(function(){

               mask.hide();

               big_wrap.hide();

            });

        });

    };

})(jQuery)

$(function(){

    $('.imageZoom').imageZoom();

})

</script>

</body>

</html>
实例截图： jquery 产品查看放大镜组件