diff --git a/app/controllers/exercise_answers_controller.rb b/app/controllers/exercise_answers_controller.rb
index 7298f2fe7..cad482390 100644
--- a/app/controllers/exercise_answers_controller.rb
+++ b/app/controllers/exercise_answers_controller.rb
@@ -107,10 +107,10 @@ class ExerciseAnswersController < ApplicationController
       normal_status(-1,"该课堂不存在！")
     elsif @exercise_user.blank?
       normal_status(-1,"试卷用户不存在！")
-    elsif @exercise_user_status == 3 || @exercise_user.commit_status == 1
+    elsif @exercise_user.commit_status == 1
       normal_status(-1,"已提交/已结束的试卷不允许修改！")
     else
-      if @exercise.time > 0 && @exercise_user.start_at.present? && ((@exercise_user.start_at + (@exercise.time.to_i + 1).minutes) < Time.now)
+      if (@exercise_user_status == 3 && @exercise_user.commit_status == 0) || (@exercise.time > 0 && @exercise_user.start_at.present? && ((@exercise_user.start_at + (@exercise.time.to_i + 1).minutes) < Time.now))
         objective_score = calculate_student_score(@exercise,current_user)[:total_score]
         subjective_score = @exercise_user.subjective_score < 0.0 ? 0.0 : @exercise_user.subjective_score
         total_score = objective_score + subjective_score
diff --git a/app/controllers/exercises_controller.rb b/app/controllers/exercises_controller.rb
index e1a5ce826..555da8e54 100644
--- a/app/controllers/exercises_controller.rb
+++ b/app/controllers/exercises_controller.rb
@@ -1632,12 +1632,6 @@ class ExercisesController < ApplicationController
       normal_status(404,"答题用户不存在")
     elsif @exercise.get_exercise_status(current_user.id) != 2 || @answer_committed_user.commit_status == 1   #
       normal_status(-1,"提交错误,试卷已截止/用户已提交！")
-    # elsif @exercise.time > 0
-    #   user_start_at = @answer_committed_user.start_at
-    #   exercise_time = @exercise.time.to_i
-    #   if (user_start_at + exercise_time.minutes) < Time.now
-    #     normal_status(-1,"限时试卷已结束,已自动提交！")
-    #   end
     end
   end
 
diff --git a/app/models/exercise.rb b/app/models/exercise.rb
index fb2608632..0c8b97ca7 100644
--- a/app/models/exercise.rb
+++ b/app/models/exercise.rb
@@ -114,27 +114,6 @@ class Exercise < ApplicationRecord
     else
       status = exercise_status   #当为老师的时候，则为试卷的总状态
     end
-    # if user_group.present?
-    #   if user_group.role == "STUDENT"   #为学生
-    #     is_teacher = false
-    #   else
-    #     is_teacher = true
-    #   end
-    #   ex_time = get_exercise_times(user_id,is_teacher)
-    #
-    #   pb_time = ex_time[:publish_time]
-    #   ed_time = ex_time[:end_time]
-    #
-    #   if pb_time.present? && ed_time.present? && pb_time <= Time.now && ed_time > Time.now
-    #     status = 2
-    #   elsif ed_time.present? && ed_time <= Time.now
-    #     status = 3
-    #   else
-    #     status  = 1
-    #   end
-    # else
-    #   status = exercise_status
-    # end
     status
   end
 
@@ -144,31 +123,11 @@ class Exercise < ApplicationRecord
       pb_time = publish_time
       en_time = end_time
 
-      if end_time <= Time.now && exercise_status != 3
+      if en_time.present? && (en_time <= Time.now) && (exercise_status != 3)
         update_column("exercise_status",3)
       end
     else
       ex_group_setting = exercise_group_settings
-      # if teacher  #当前为老师,为设置组的最大值和最小值
-      #   user_group = course.teacher_course_groups.get_user_groups(user_id)
-      #   user_group_ids = user_group.present? ? user_group.pluck(:course_group_id) : course.course_groups.pluck(:id)
-      #   user_ex_group_settings = ex_group_setting.find_in_exercise_group("course_group_id",user_group_ids)
-      #   pb_time_min = user_ex_group_settings.publish_time_no_null.map(&:publish_time)
-      #   en_time_max = user_ex_group_settings.end_time_no_null.map(&:end_time)
-      #   pb_time = pb_time_min.size > 0 ? pb_time_min.min : nil
-      #   en_time = en_time_max.size > 0 ? en_time_max.max : nil
-      # else
-      #   user_group = course.students.course_find_by_ids("user_id",user_id)
-      #   if user_group.present?
-      #     user_group_id = user_group.first.course_group_id
-      #     user_ex_group_setting = ex_group_setting.find_in_exercise_group("course_group_id",user_group_id)
-      #     pb_time = user_ex_group_setting.present? ? user_ex_group_setting.first.publish_time : nil
-      #     en_time = user_ex_group_setting.present? ? user_ex_group_setting.first.end_time : nil
-      #   else
-      #     pb_time = nil
-      #     en_time = nil
-      #   end
-      # end
       user_group = course.students.course_find_by_ids("user_id",user_id)
       if user_group.present?
         user_group_id = user_group.first.course_group_id