微信公众号 点击预览大图。支持滑动，双击放大功能。

<script type="text/javascript" src="http://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script>

<script>

    // 点击查看大图

    function funcReadImgInfo(){

        var imgs = [];

        var imgObj = $("img");//这里改成相应的对象

        for(var i=0; i<imgObj.length; i++){

            imgs.push(imgObj.eq(i).attr('src'));

            imgObj.eq(i).click(function(){

                var nowImgurl = $(this).attr('src');

                WeixinJSBridge.invoke("imagePreview",{

                    "urls":imgs,

                    "current":nowImgurl

                });

            });

        }

    }

    funcReadImgInfo();
</script>