diff --git a/app/helpers/student_works_helper.rb b/app/helpers/student_works_helper.rb
index 93a1a3f9a..682bfbf81 100644
--- a/app/helpers/student_works_helper.rb
+++ b/app/helpers/student_works_helper.rb
@@ -41,7 +41,7 @@ module StudentWorksHelper
 
   def student_efficiency(homework_common, work)
     myshixun_ids = homework_common.student_works.pluck(:myshixun_id)
-    myshixuns = Myshixun.where(id: myshixun_ids).includes(games: [:outputs])
+    myshixuns = Myshixun.where(id: myshixun_ids).includes(:games)
     #student_works_user_id = homework_common.student_works.pluck(:user_id).uniq
     #shixun = homework_common.shixuns.first
     #logger.info("#########shixun_id: ###{shixun.id}")
@@ -54,13 +54,13 @@ module StudentWorksHelper
     objects =
         myshixuns.map do |myshixun|
           # 评测次数
-          evaluate_count = myshixun.games.inject(0) {|sum, g| sum + g.outputs.pluck(:query_index).first.to_i}
+          evaluate_count = myshixun.games.sum(:evaluate_count)
           # 获取最大评测次数
           max_evaluate_count = (evaluate_count > max_evaluate_count ? evaluate_count : max_evaluate_count)
           # 通关耗时
           pass_consume_time = (myshixun.games.where(status: 2).pluck(:cost_time).sum / 60.0)
           # 总耗时
-          all_time = (myshixun.games.pluck(:cost_time).sum / 60.0)
+          all_time = (myshixun.games.sum(:cost_time) / 60.0)
           # 通关得分
           user_total_score = myshixun.total_score.to_i
           # 耗时,保留2位小数，