no message

@@ -165,7 +165,7 @@
         });
 
         //GIF/视频上传
-        var uploadInst = upload.render({
+        var uploadInst_image = upload.render({
             elem: '#adBtn'
             ,url: '{:url("UpFiles/uploadQn")}'
             ,before: function(obj){
@@ -192,7 +192,7 @@
                 var demoText = $('#demoText');
                 demoText.html('<span style="color: #FF5722;">上传失败</span> <a class="layui-btn layui-btn-mini demo-reload">重试</a>');
                 demoText.find('.demo-reload').on('click', function(){
-                    uploadInst.upload();
+                    uploadInst_image.upload();
                 });
             }
         });