diff --git a/app/controllers/homework_attach_controller.rb b/app/controllers/homework_attach_controller.rb
index 1841c90ea..041c63a8e 100644
--- a/app/controllers/homework_attach_controller.rb
+++ b/app/controllers/homework_attach_controller.rb
@@ -101,9 +101,6 @@ class HomeworkAttachController < ApplicationController
             :project_id => project_id
         }
 
-
-        #@homework_list = @bid.homeworks
-
         @homework = HomeworkAttach.new(options)
         @homework.save_attachments(params[:attachments])
         render_attachment_warning_if_needed(@homework)
@@ -126,18 +123,8 @@ class HomeworkAttachController < ApplicationController
 
   def new
     @bid = Bid.find(params[:id])
-    if User.current.admin? || User.current.member_of_course?(@bid.courses.first)      #nwb
-      #该课程的学生的集合(新建不实现功能：添加成员)
-      #@members = @bid.courses.first.members.joins(:member_roles).where("member_roles.role_id IN (:role_id) and user_id <> #{User.current.id}", {:role_id => [5, 10]})
-
-      #@members = paginateHelper @members,10
-      #@all_user = []
-      #@bid.courses.first.members.each do |member|
-        #  @all_user << member.user
-        #end
+    if User.current.admin? || User.current.member_of_course?(@bid.courses.first)
       @homework = HomeworkAttach.new
-      #@homework_user = members_for_homework(@homework) + User.current
-      #@members = @all_user - @homework_user
       respond_to do |format|
         format.html # new.html.erb
         format.json { render json: @homework }
@@ -171,7 +158,6 @@ class HomeworkAttachController < ApplicationController
   #users：该作业所有成员
   #q:模糊匹配的用户的昵称
   def members_for_homework homework,users,q
-    #homework.bid.courses.first.members.joins(:member_roles).where("member_roles.role_id IN (:role_id) and user_id not in (:users)", {:role_id => [5, 10],:users => users}).joins(:user).where("users.login like '%#{q}%'")
     unpartin_users = homework.bid.courses.first.members.where("user_id not in (:users)", {:users => users}).joins(:user).where("users.login like '%#{q}%'")
     canpartin_users = []
     unpartin_users.each do |m|
@@ -183,9 +169,7 @@ class HomeworkAttachController < ApplicationController
   end
 
   def edit
-    #@homework = HomeworkAttach.find(params[:id])
     if User.current.admin? || User.current.member_of_course?(@homework.bid.courses.first)
-      #@members = @homework.bid.courses.first.members.joins(:member_roles).where("member_roles.role_id IN (:role_id)", {:role_id => [5, 10]})
       get_homework_member @homework
     else
       render_403 :message => :notice_not_authorized
@@ -226,7 +210,6 @@ class HomeworkAttachController < ApplicationController
   end
 
   def destroy
-    #@homework = HomeworkAttach.find(params[:id])
     if User.current.admin? || User.current == @homework.user
       if @homework.destroy
         respond_to do |format|
@@ -242,7 +225,6 @@ class HomeworkAttachController < ApplicationController
 
   #显示作业信息
   def show
-    #@homework = HomeworkAttach.find(params[:id])
     if User.current.admin? || User.current.member_of_course?(@homework.bid.courses.first)
       # 打分统计
       stars_reates = @homework.
@@ -279,13 +261,6 @@ class HomeworkAttachController < ApplicationController
   #删除留言
   def destroy_jour
     @journal_destroyed = JournalsForMessage.delete_message(params[:object_id])
-    #@homework = HomeworkAttach.find(params[:id])
-    #@jours = @homework.journals_for_messages.order("created_on DESC")
-    #@limit =  10
-    #@feedback_count = @jours.count
-    #@feedback_pages = Paginator.new @feedback_count, @limit, params['page']
-    #@offset ||= @feedback_pages.offset
-    #@jour = @jours[@offset, @limit]
     respond_to do |format|
       format.js
     end
@@ -322,14 +297,6 @@ class HomeworkAttachController < ApplicationController
 
   #获取指定作业的平均得分
   def score
-    #stars_reates = @homework.rates(:quality)
-    #percent = 0
-    #stars_reates.each do |star_reates|
-    #  percent = percent + star_reates.stars
-    #end
-    #stars_reates_count = stars_reates.count == 0 ? 1 : stars_reates.count
-    #result = percent * 1.0 /  stars_reates_count
-    #result
   end
 
   #添加回复
diff --git a/app/views/homework_attach/new.html.erb b/app/views/homework_attach/new.html.erb
index 3cce7bdae..cd1e4e425 100644
--- a/app/views/homework_attach/new.html.erb
+++ b/app/views/homework_attach/new.html.erb
@@ -62,7 +62,7 @@
           描&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;述&nbsp;&nbsp;：
         </strong>
         <span style="margin-left:-10px;padding-right: 20px;">
-          <%= f.text_area "description", :rows => 8, :class => 'wiki-edit', :style => "font-size:small;width:490px;margin-left:10px;", :maxlength => 65534 %>
+          <%= f.text_area "description", :rows => 8, :class => 'wiki-edit', :style => "font-size:small;width:490px;margin-left:10px;", :maxlength => 5000 %>
         </span>
       </p>
       <p style="padding-left: 60px">