diff --git a/app/controllers/exercises_controller.rb b/app/controllers/exercises_controller.rb
index 79bed2d25..a1db41d79 100644
--- a/app/controllers/exercises_controller.rb
+++ b/app/controllers/exercises_controller.rb
@@ -1293,19 +1293,38 @@ class ExercisesController < ApplicationController
           @exercise_users_list = @exercise_users_list.page(@page).per(@limit)
           respond_to do |format|
             format.json
+            if @user_course_identity > Course::ASSISTANT_PROFESSOR
+              tip_exception(403,"无权限操作")
+            elsif (@exercise_users_size == 0) || ( @export_ex_users&.exercise_user_committed.size == 0)
+              logger.info("#######___________@exercise_users_size_________##################{@exercise_users_size}")
+              logger.info("#######__________@export_ex_users&.exercise_user_committed.size_________##################{@export_ex_users&.exercise_user_committed.size}")
+
+
+              normal_status(-1,"暂无用户提交")
+            else
+              format.xlsx{
+                get_export_users(@exercise,@course,@export_ex_users)
+                exercise_export_name =
+                    "#{current_user.real_name}_#{@course.name}_#{@exercise.exercise_name}_#{Time.now.strftime('%Y%m%d_%H%M%S')}"
+                render xlsx: "#{exercise_export_name.strip.first(30)}",template: "exercises/exercise_lists.xlsx.axlsx",locals: {table_columns:@table_columns,exercise_users:@user_columns}
+              }
+            end
             format.xlsx{
-              if @user_course_identity > Course::ASSISTANT_PROFESSOR
-                tip_exception(403,"无权限操作")
-              else
-                if @export_ex_users.exercise_user_committed.size == 0
-                  normal_status(-1,"暂无用户提交")
-                else
-                  get_export_users(@exercise,@course,@export_ex_users)
-                  exercise_export_name =
-                      "#{current_user.real_name}_#{@course.name}_#{@exercise.exercise_name}_#{Time.now.strftime('%Y%m%d_%H%M%S')}"
-                  render xlsx: "#{exercise_export_name.strip.first(30)}",template: "exercises/exercise_lists.xlsx.axlsx",locals: {table_columns:@table_columns,exercise_users:@user_columns}
-                end
-              end
+              # if @user_course_identity > Course::ASSISTANT_PROFESSOR
+              #   tip_exception(403,"无权限操作")
+              # else
+              #   if (@exercise_users_size == 0) || ( @export_ex_users&.exercise_user_committed.size == 0)
+              #     logger.info("#######__________@export_ex_users&.exercise_user_committed.size_________##################{@export_ex_users&.exercise_user_committed.size}")
+              #     logger.info("#######___________@exercise_users_size_________##################{@exercise_users_size}")
+              #
+              #     normal_status(-1,"暂无用户提交")
+              #   else
+              #     get_export_users(@exercise,@course,@export_ex_users)
+              #     exercise_export_name =
+              #         "#{current_user.real_name}_#{@course.name}_#{@exercise.exercise_name}_#{Time.now.strftime('%Y%m%d_%H%M%S')}"
+              #     render xlsx: "#{exercise_export_name.strip.first(30)}",template: "exercises/exercise_lists.xlsx.axlsx",locals: {table_columns:@table_columns,exercise_users:@user_columns}
+              #   end
+              # end
             }
           end
         else
@@ -1316,9 +1335,6 @@ class ExercisesController < ApplicationController
             format.xlsx{
               normal_status(-1,"暂无用户提交")
             }
-            format.zip{
-              normal_status(-1,"暂无用户提交")
-            }
           end
         end