fix bug

app/helpers/exercise_questions_helper.rb

@@ -32,7 +32,7 @@ module ExerciseQuestionsHelper
 
   def shixun_game_scores(challenge,ex_answerer,shixun_type,question_id)
     game_score = challenge.question_score
-    game_answers = challenge.exercise_shixun_answers.search_shixun_answers("user_id",ex_answerer.id).search_shixun_answers("exercise_question_id",question_id)
+    game_answers = challenge.exercise_shixun_answers.where(user_id:ex_answerer.id,exercise_question_id:question_id)
     if shixun_type == 2 && game_answers.present?  #试卷已截止，用户才可以查看答案
       s_score = game_answers.first.score
     else

app/views/exercises/_shixun_details.json.jbuilder

@@ -7,7 +7,7 @@ json.stage_list do
     json.evaluate_count game.evaluate_count
     json.finished_time finished_time game.end_time
     json.time_consuming time_consuming game
-    json.myself_experience game.final_score  #经验值
+    json.myself_experience game.final_score < 0 ? 0 : game.final_score  #经验值
     json.experience game.challenge.all_score  #经验值
     json.user_score user_score.round(1).to_s  #用户获得的分数
     json.game_score game_score.round(1).to_s #该关卡的总分数