diff --git a/app/controllers/student_work_controller.rb b/app/controllers/student_work_controller.rb
index 01f858442..1af832b79 100644
--- a/app/controllers/student_work_controller.rb
+++ b/app/controllers/student_work_controller.rb
@@ -11,6 +11,13 @@ class StudentWorkController < ApplicationController
   protect_from_forgery :except => :set_program_score
 
   def index
+    #设置作业对应的forge_messages表的viewed字段
+    query_student_work = @homework.course_messages
+    query_student_work.each do |query|
+      if User.current.id == query.user_id
+        query.update_attributes(:viewed => true)
+      end
+    end
     @order,@b_sort,@name,@group = params[:order] || "score",params[:sort] || "desc",params[:name] || "",params[:group]
     @is_teacher = User.current.allowed_to?(:as_teacher,@course)
     course_group = CourseGroup.find_by_id(@group) if @group