diff --git a/app/controllers/exercises_controller.rb b/app/controllers/exercises_controller.rb
index fe04e04f8..09b237221 100644
--- a/app/controllers/exercises_controller.rb
+++ b/app/controllers/exercises_controller.rb
@@ -203,13 +203,13 @@ class ExercisesController < ApplicationController
         else
           @is_teacher_or = 1
           @user_exercise_answer = 3  #教师页面
-          @user_commit_counts = @exercise.exercise_users.where(commit_status:1).count   #已提交的用户数
+          @user_commit_counts = @exercise.exercise_users.where(commit_status:1).size   #已提交的用户数
         end
         @ex_status = @exercise.get_exercise_status(current_user)
 
         exercise_id_array = [@exercise.id]
-        @exercise_publish_count = get_user_permission_course(exercise_id_array,2).count   #是否存在已发布的
-        @exercise_unpublish_count = get_user_permission_course(exercise_id_array,1).count  #是否存在未发布的
+        @exercise_publish_count = get_user_permission_course(exercise_id_array,2).size   #是否存在已发布的
+        @exercise_unpublish_count = get_user_permission_course(exercise_id_array,1).size  #是否存在未发布的
 
         if (@exercise_publish_count == 0) && (@exercise_unpublish_count == 0)  #即表示没有分班
           if @ex_status == 1
diff --git a/app/helpers/exercises_helper.rb b/app/helpers/exercises_helper.rb
index 1dd6c7452..6eb798d9a 100644
--- a/app/helpers/exercises_helper.rb
+++ b/app/helpers/exercises_helper.rb
@@ -115,14 +115,13 @@ module ExercisesHelper
         right_users_count = 0  #该问题的回答正确的人数
 
         #计算每个问题的答案人数
-        # user_ids.each do |user_id|
-        #   answer_choice_array = effictive_users.where(user_id:user_id)&.map {|s| s.exercise_choice.choice_position}.uniq
-        #   if answer_choice_array.sort == standard_answer
-        #     right_users_count += 1
-        #   end
-        # end
-        # percent = effictive_users_count > 0 ? (right_users_count / effictive_users_count.to_f).round(3)*100 : 0.0
-        percent = 0.0
+        user_ids.each do |user_id|
+          answer_choice_array = effictive_users.where(user_id:user_id)&.map {|s| s.exercise_choice.choice_position}.uniq
+          if answer_choice_array.sort == standard_answer
+            right_users_count += 1
+          end
+        end
+        percent = effictive_users_count > 0 ? (right_users_count / effictive_users_count.to_f).round(3)*100 : 0.0
         ex.exercise_choices.each do |c|
           right_answer = standard_answer.include?(c.choice_position)   #选项的标准答案为选项的位置
           answer_this_choice = effictive_users.search_exercise_answer("exercise_choice_id",c.id)
diff --git a/app/models/exercise.rb b/app/models/exercise.rb
index e7d141ea9..a46fded25 100644
--- a/app/models/exercise.rb
+++ b/app/models/exercise.rb
@@ -178,13 +178,12 @@ class Exercise < ApplicationRecord
     ex_answer_user = exercise_users.where(user_id: user.id).select(:start_at,:end_at,:commit_status)
     user_ex_status = get_exercise_status(user)
     user_status = 2
-    if ex_answer_user.exists? && (ex_answer_user.first&.start_at.present? || ex_answer_user.first&.end_at.present?)   #学生有过答题的,或者立即截止，但学生未做试卷的
+    if ex_answer_user.present? && (ex_answer_user.first&.start_at.present? || ex_answer_user.first&.end_at.present?)   #学生有过答题的,或者立即截止，但学生未做试卷的
       user_status = ex_answer_user.first.commit_status
     end
-    if ex_answer_user.exists? && ex_answer_user.first&.start_at.blank? && user_ex_status == 3
+    if ex_answer_user.present? && ex_answer_user.first&.start_at.blank? && user_ex_status == 3
       user_status = 4
     end
-
     user_status
   end