diff --git a/app/helpers/exercises_helper.rb b/app/helpers/exercises_helper.rb
index d8a91f571..d4ecf6d1a 100644
--- a/app/helpers/exercises_helper.rb
+++ b/app/helpers/exercises_helper.rb
@@ -406,7 +406,7 @@ module ExercisesHelper
 
             #TODO: 旧版多选题的标准答案是放在一个里面的，新版又做成了一个题有多个标准答案（exercise_choice_id存放的是标准答案的位置..）
             if q.question_type == 1 && standard_answer.size == 1
-              standard_answer = standard_answer.first.to_s.split("").map(&:to_i)
+              standard_answer = standard_answer.first.to_s.split("").map(&:to_i).sort
             end
 
             if user_answer_content == standard_answer  #答案一致,多选或单选才给分，答案不对不给分
diff --git a/db/migrate/20190822022306_add_exercise_user_update.rb b/db/migrate/20190822022306_add_exercise_user_update.rb
new file mode 100644
index 000000000..c15e1a8e0
--- /dev/null
+++ b/db/migrate/20190822022306_add_exercise_user_update.rb
@@ -0,0 +1,19 @@
+class AddExerciseUserUpdate < ActiveRecord::Migration[5.2]
+  include ExercisesHelper
+  def change
+    exs = Exercise.all.is_exercise_published.where("published_time > ?",(Time.now - 2.months)).includes(:exercise_questions,:exercise_users)
+    exs.each do |ex|
+      ex_users = ex.exercise_users.exercise_user_committed.where("end_at is not null and end_at > ?",(Time.now - 2.months))
+      if ex_users.present?
+        ex_users.each do |ex_user|
+          calculate_score = calculate_student_score(ex,ex_user.user)[:total_score]
+          subjective_score = ex_user.subjective_score
+          total_score_subjective_score = subjective_score < 0.0 ? 0.0 : subjective_score
+          total_score = calculate_score + total_score_subjective_score
+          ex_user.update_attributes(score:total_score,objective_score:calculate_score)
+          puts ex_user.id
+        end
+      end
+    end
+  end
+end