$(function () {            var wait = $("<img src=http://www.mamicode.com/"\" alt=\"正在上传\"/>");            $("#File1").change(function () {                $("#form1").ajaxSubmit({                    url: ‘/Provider/HandlerUpOneFile.ashx?path=1‘,                    beforeSubmit: function () {                    },                    success: function (data) {                        $("#File1").attr("src", data);                        // alert( $("#File1").attr("src"));                        alert(data);                    }                });            });        });

      <form id="form1" method="post" enctype="multipart/form-data" >          <div class="easyui-panel" style="padding:10px;"> 选择文件                      <input  type="file" id="File1" name="File1" /> 注意此处 name 必须设置否则无法获取                        <a class="easyui-linkbutton" data-options="iconCls:‘icon-ok‘" href="javascript:void(0)" onclick="LoadData()">上传文件</a></div></form>