layui多图上传添加删除功能的实现方法

<div class="layui-upload">
 <button type="button" class="layui-btn" id="test2">多图片上传</button>
 <blockquote class="layui-elem-quote layui-quote-nm" style="margin-top: 10px;width: 88%">
  预览图：
  <div class="layui-upload-list uploader-list" style="overflow: auto;" id="uploader-list">
         
  </div>
 </blockquote>
</div>

 <style type="text/css">
  .uploader-list {
   margin-left: -15px;
  }
 
  .uploader-list .info {
   position: relative;
   margin-top: -25px;
   background-color: black;
   color: white;
   filter: alpha(Opacity=80);
   -moz-opacity: 0.5;
   opacity: 0.5;
   width: 100px;
   height: 25px;
   text-align: center;
   display: none;
  }
 
  .uploader-list .handle {
   position: relative;
   background-color: black;
   color: white;
   filter: alpha(Opacity=80);
   -moz-opacity: 0.5;
   opacity: 0.5;
   width: 100px;
   text-align: right;
   height: 18px;
   margin-bottom: -18px;
   display: none;
  }
 
  .uploader-list .handle span {
   margin-right: 5px;
  }
 
  .uploader-list .handle span:hover {
   cursor: pointer;
  }
 
  .uploader-list .file-iteme {
   margin: 12px 0 0 15px;
   padding: 1px;
   float: left;
  }
 </style>

upload.render({
elem: '#test2'
,url: ''
,multiple: true
,before: function(obj){
layer.msg('图片上传中...', {
icon: 16,
shade: 0.01,
time: 0
})
}

,done: function(res){
layer.close(layer.msg());//关闭上传提示窗口
//上传完毕
$('#uploader-list').append(
'<div id="" class="file-iteme">' +
'<div class="handle"><span class="glyphicon glyphicon-trash"></span></div>' +
'<img style="width: 100px;height: 100px;" src=https://'+ res.href +'>' +
'<div class="info">' + res.name + '</div>' +
'</div>'
);
}
});

  $(document).on("mouseenter mouseleave", ".file-iteme", function(event){
   if(event.type === "mouseenter"){
    //鼠标悬浮
    $(this).children(".info").fadeIn("fast");
    $(this).children(".handle").fadeIn("fast");
   }else if(event.type === "mouseleave") {
    //鼠标离开
    $(this).children(".info").hide();
    $(this).children(".handle").hide();
   }
  });

  // 删除图片
  $(document).on("click", ".file-iteme .handle", function(event){
   $(this).parent().remove(); 
  });