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

var imgList=[];
    $("#box").on(‘click‘,".imgclass",function(e){
        e.stopPropagation();
        var that=$(this);
        var imgs=that.attr(‘src‘);
        var nowImgUrl= that.attr(‘src‘);
        if(!imgList.includes(imgs)){
            imgList.push(imgs);
        }
        WeixinJSBridge.invoke("imagePreview",{
            "urls":imgList,
            "current":nowImgUrl
        });
    });