diff --git a/app/controllers/myshixuns_controller.rb b/app/controllers/myshixuns_controller.rb
index 9ab8c3d94..5e7b8b4f6 100644
--- a/app/controllers/myshixuns_controller.rb
+++ b/app/controllers/myshixuns_controller.rb
@@ -71,18 +71,7 @@ class MyshixunsController < ApplicationController
         shixun = @myshixun.shixun
         @challenges = shixun.challenges
         # 删除选择题用户记录
-        unless @challenges.blank?
-          @challenges.each do |challenge|
-            if challenge.st != 0
-              challenge.challenge_chooses.each do |choose|
-                user_output = choose.choose_outputs
-                unless user_output.blank?
-                  user_output.delete
-                end
-              end
-            end
-          end
-        end
+        
         #end
         myshixun_job = Base64.urlsafe_encode64("myshixun_#{@myshixun.id}")
         StudentWork.where(:myshixun_id => @myshixun.id).update_all(:myshixun_id => nil, :work_status => 0)