diff --git a/app/services/games_service.rb b/app/services/games_service.rb
index 9bced6df..a418cf8a 100644
--- a/app/services/games_service.rb
+++ b/app/services/games_service.rb
@@ -233,7 +233,7 @@ class GamesService
     is_teacher = (current_user.user_extensions.identity == 0)
     is_certification_teacher = current_user.is_certification_teacher
     # 这几种情况可以直接查看答案的：实训未发布；当前用户为实训管理员；已经查看过答案；平台认证的老师；
-    if (@shixun.status < 2 || shixun_manager(@shixun, current_user) || @game.answer_open || is_certification_teacher)
+    if (@shixun.status < 2 || shixun_manager(@shixun, current_user) || @game.answer_open == 1 || is_certification_teacher)
       Rails.logger.info("answer#{params[:identifier]}#### user is #{current_user.id}, status is #{@shixun.status}, manager is #{shixun_manager(@shixun, current_user)}, open #{@game.answer_open}, cer #{is_certification_teacher}")
       if challenge.st == 0
         result = challenge.try(:answer)