$(document).on('click', '.layer-photos-demo', function() {
      var imgArry = [];
      var id = $(this).attr('data-id');
      $("#pic"+id).find("img").each(function(){
          imgArry.push({"src": $(this).attr("src")})
      })
        layer.photos({
            //photos:"#pic"+data_id,
            photos: {
                "title": "", //相册标题
                "id": 123, //相册id
                "start": 0, //初始显示的图片序号，默认0
                "data": imgArry
            } //格式见API文档手册页
            ,shadeClose: true
            //closeBtn: 2,
            ,anim: 5 //0-6的选择，指定弹出图片动画类型，默认随机
        });
    })

html代码

 <div id="pic2" data-id="2" class="layer-photos-demo">
                  <img layer-src="/uploadfile/10/image/20221213/20221213100530_48984.jpg" src="/uploadfile/10/image/20221213/20221213100530_48984.jpg" style="width: 50px; height: 50px;">
                  <img layer-src="/uploadfile/10/image/20221213/20221213100532_48512.jpg" src="/uploadfile/10/image/20221213/20221213100532_48512.jpg" style="width: 50px; height: 50px;">

              </div>
 <div id="pic3" data-id="3" class="layer-photos-demo">
                  <img layer-src="/uploadfile/10/image/20221213/20221213100530_48984.jpg" src="/uploadfile/10/image/20221213/20221213100530_48984.jpg" style="width: 50px; height: 50px;">
                  <img layer-src="/uploadfile/10/image/20221213/20221213100532_48512.jpg" src="/uploadfile/10/image/20221213/20221213100532_48512.jpg" style="width: 50px; height: 50px;">

              </div>

layer多组、分组图片相册预览 参考：https://developer.aliyun.com/article/925958