细节优化

application/admin/view/default/pluginsadmin/upload.html

@@ -16,7 +16,7 @@
                 <span class="tips fs-12">上传一个zip压缩格式的应用安装包</span>
                 <div id="form-file-tips"></div>
             </div>
-            <div class="am-form-group">
+            <div class="am-form-group am-form-group-refreshing">
                 <button type="submit" class="am-btn am-btn-primary am-radius btn-loading-example am-btn-sm" data-am-loading="{loadingText:'上传中...'}">上传</button>
             </div>
         </form>