diff --git a/app/controllers/courses_controller.rb b/app/controllers/courses_controller.rb
index a850d16c..a35860f2 100644
--- a/app/controllers/courses_controller.rb
+++ b/app/controllers/courses_controller.rb
@@ -2404,17 +2404,17 @@ class CoursesController < ApplicationController
     homeworks.where(:homework_type => 4).each do |homework|
       sheet1[4,current_col+=1] = "#{homework.name}"
     end
-    for i in 0 ... homeworks.where(:homework_type => 1).size
-      sheet1[4,current_col+=1] = "普通作业第"+(i+1).to_s+"次"
+    homeworks.where(:homework_type => 1).each do |homework|
+      sheet1[4,current_col+=1] = "#{homework.name}"
     end
-    for i in 0 ... homeworks.where(:homework_type => 3).size
-      sheet1[4,current_col+=1] = "分组作业第"+(i+1).to_s+"次"
+    homeworks.where(:homework_type => 3).each do |homework|
+      sheet1[4,current_col+=1] = "#{homework.name}"
     end
-    for i in 0 ... exercises.size
-      sheet1[4,current_col+=1] = "试卷第"+(i+1).to_s+"次"
+    exercises.each do |exercise|
+      sheet1[4,current_col+=1] = "#{exercise.exercise_name}"
     end
-    for i in 0 ... tasks.size
-      sheet1[4,current_col+=1] = "毕设任务第"+(i+1).to_s+"次"
+    tasks.each do |task|
+      sheet1[4,current_col+=1] = "#{task.name}"
     end
 
     sheet1[4,current_col+=1] = "实训作业总得分"
@@ -2598,7 +2598,7 @@ class CoursesController < ApplicationController
     end
 
     homeworks.where(:homework_type => 1).includes(:score_student_works).each_with_index do |home, i|
-      sheet = book.create_worksheet :name => "普通作业第#{i+1}次"
+      sheet = book.create_worksheet :name => "#{home.name}"
       sheet[0,0] = "课程编号"
       sheet[0,1] = course.id
       sheet[1,0] = "课程名称"
@@ -2645,7 +2645,7 @@ class CoursesController < ApplicationController
     end
 
     homeworks.where(:homework_type => 3).includes(:score_student_works).each_with_index do |home, i|
-      sheet = book.create_worksheet :name => "分组作业第#{i+1}次"
+      sheet = book.create_worksheet :name => "#{home.name}"
       sheet[0,0] = "课程编号"
       sheet[0,1] = course.id
       sheet[1,0] = "课程名称"
@@ -2693,7 +2693,7 @@ class CoursesController < ApplicationController
     end
 
     exercises.includes(:score_exercise_users).each_with_index do |exercise, i|
-      sheet = book.create_worksheet :name => "试卷第#{i+1}次"
+      sheet = book.create_worksheet :name => "#{exercise.exercise_name}"
       sheet[0,0] = "课程编号"
       sheet[0,1] = course.id
       sheet[1,0] = "课程名称"
@@ -2724,7 +2724,7 @@ class CoursesController < ApplicationController
     end
 
     tasks.each_with_index do |task, i|
-      sheet = book.create_worksheet :name => "毕设任务第#{i+1}次"
+      sheet = book.create_worksheet :name => "#{task.name}"
       sheet[0,0] = "课程编号"
       sheet[0,1] = course.id
       sheet[1,0] = "课程名称"