diff --git a/app/controllers/exercise_controller.rb b/app/controllers/exercise_controller.rb
index 58c6f772b..dd4e543ff 100644
--- a/app/controllers/exercise_controller.rb
+++ b/app/controllers/exercise_controller.rb
@@ -188,15 +188,14 @@ class ExerciseController < ApplicationController
     @exercise_question = ExerciseQuestion.find params[:exercise_question]
     @exercise_question.question_title = params[:question_title].nil? || params[:question_title].empty? ? l(:label_enter_single_title) : params[:question_title]
     @exercise_question.question_score = params[:question_score]
-    ################处理选项
+    # 处理选项
     if params[:question_answer]
       @exercise_question.exercise_choices.each do |answer|
         answer.destroy unless params[:question_answer].keys.include? answer.id.to_s
       end
-      # 界面需要判断选择题至少有一个选项
-      for i in 1..@exercise_question.exercise_choices.count
+      for i in 1..params[:question_answer].count
         question = @exercise_question.exercise_choices.find_by_id params[:question_answer].keys[i-1]
-        # answer = (params[:question_answer].values[i-1].nil? || params[:question_answer].values[i-1].empty?) ? l(:label_new_answer) : params[:question_answer].values[i-1]
+        answer = (params[:question_answer].values[i-1].nil? || params[:question_answer].values[i-1].empty?) ? l(:label_new_answer) : params[:question_answer].values[i-1]
         if question
           question.exercise_choices_id = i
           question.answer_text = answer