diff --git a/app/controllers/exercise_controller.rb b/app/controllers/exercise_controller.rb
index 0a95fd025..6d6d429b6 100644
--- a/app/controllers/exercise_controller.rb
+++ b/app/controllers/exercise_controller.rb
@@ -1,7 +1,7 @@
 class ExerciseController < ApplicationController
   layout "base_courses"
 
-  before_filter :find_exercise_and_course, :only => [:create_exercise_question, :edit, :update, :show, :destroy, :commit_exercise, :commit_answer,:publish_exercise,:republish_exercise]
+  before_filter :find_exercise_and_course, :only => [:create_exercise_question, :edit, :update, :show, :destroy, :commit_exercise, :commit_answer,:publish_exercise,:republish_exercise,:show_student_result]
   before_filter :find_course, :only => [:index,:new,:create,:student_exercise_list]
   include ExerciseHelper
 
@@ -34,7 +34,7 @@ class ExerciseController < ApplicationController
       render_403
       return
     end
-    exercise_end = Time.parse(format_time(@exercise.end_time)).strftime("%Y-%m-%d %H:%M:%S") > Time.now.strftime("%Y-%m-%d %H:%M:%S")
+    exercise_end = @exercise.end_time > Time.now
     if @exercise.time == -1
       @can_edit_excercise = exercise_end
     else
@@ -59,6 +59,9 @@ class ExerciseController < ApplicationController
       # @percent = get_percent(@exercise,User.current)
       exercise_questions = @exercise.exercise_questions
       @exercise_questions = paginateHelper exercise_questions,5 #分页
+      score = calculate_student_score(@exercise, User.current)
+      eu = get_exercise_user(@exercise.id, User.current.id)
+      eu.update_attributes(:score => score)
       respond_to do |format|
         format.html {render :layout => 'base_courses'}
       end
@@ -342,10 +345,10 @@ class ExerciseController < ApplicationController
     @exercise = Exercise.find params[:id]
     @all_exercises = @course.exercises.where("exercise_status > 1").order("created_at desc")
     @exercise_count = @exercise.exercise_users.where('score is not NULL').count
-    if @is_teacher || (!@exercise.exercise_users.where(:user_id => User.current.id).empty? && Time.parse(@exercise.end_time.to_s).strftime("%Y-%m-%d-%H-%M-%S") <= Time.now.strftime("%Y-%m-%d-%H-%M-%S"))
+    if @is_teacher || (!@exercise.exercise_users.where(:user_id => User.current.id).empty? && @exercise.end_time <= Time.now)
       @exercise_users_list = @exercise.exercise_users.where('score is not NULL')
       @show_all = true;
-    elsif !@exercise.exercise_users.where(:user_id => User.current.id).empty? && Time.parse(@exercise.end_time.to_s).strftime("%Y-%m-%d-%H-%M-%S") > Time.now.strftime("%Y-%m-%d-%H-%M-%S")
+    elsif !@exercise.exercise_users.where(:user_id => User.current.id).empty? && @exercise.end_time > Time.now
       @exercise_users_list = @exercise.exercise_users.where("user_id = ? and score is not NULL",User.current.id)
     else
       @exercise_users_list = []
@@ -359,7 +362,7 @@ class ExerciseController < ApplicationController
   def commit_answer
     eq = ExerciseQuestion.find(params[:exercise_question_id])
     # 已提交过的且是限时的则不允许答题
-    if (has_commit_exercise?(@exercise.id,User.current.id) && (!User.current.admin?) && @exercise.time != -1) || Time.parse(format_time(@exercise.end_time)).strftime("%Y-%m-%d %H:%M:%S") < Time.now.strftime("%Y-%m-%d %H:%M:%S")
+    if (has_commit_exercise?(@exercise.id,User.current.id) && (!User.current.admin?) && @exercise.time != -1) || @exercise.end_time < Time.now
       render :json => {:text => "failure"}
       return
     end
@@ -483,7 +486,7 @@ class ExerciseController < ApplicationController
         @exercise.update_attributes(:publish_time => Time.now)
         redirect_to exercise_url(@exercise)
         return
-      elsif Time.parse(@exercise.publish_time.to_s).strftime("%Y-%m-%d-%H-%M-%S") > Time.now.strftime("%Y-%m-%d-%H-%M-%S")
+      elsif @exercise.publish_time > Time.now
         @exercise.update_attributes(:show_result => params[:show_result])
         redirect_to exercise_url(@exercise)
         return
@@ -521,6 +524,20 @@ class ExerciseController < ApplicationController
     end
   end
 
+  #查看学生的答卷情况
+  def show_student_result
+    @user = User.find params[:user_id]
+    @can_edit_excercise = false
+    @exercise_user = ExerciseUser.where("user_id =? and exercise_id=?", @user.id, @exercise.id).first
+    @exercise_questions = @exercise.exercise_questions
+    score = calculate_student_score(@exercise, @user)
+    eu = get_exercise_user(@exercise.id, @user.id)
+    eu.update_attributes(:score => score)
+    respond_to do |format|
+      format.html {render :layout => 'base_courses'}
+    end
+  end
+
   # 计算学生得分
   def calculate_student_score(exercise, user)
     score = 0
diff --git a/app/views/exercise/_edit_head.html.erb b/app/views/exercise/_edit_head.html.erb
index c8ba0c4d7..b69f52a56 100644
--- a/app/views/exercise/_edit_head.html.erb
+++ b/app/views/exercise/_edit_head.html.erb
@@ -30,10 +30,11 @@
 <script type="text/javascript">
     function resetHead()
     {
-        $("#exercise_name").val("<%=@exercise.exercise_name%>");
+        $("#exercise_name").val("<%=exercise.exercise_name%>");
         $("#exercise_end_time").val("<%= Time.parse(format_time(exercise.end_time)).strftime("%Y-%m-%d") if exercise.end_time %>");
         $("#exercise_time").val("<%=exercise.time if exercise.time!= -1 %>");
         $("#exercise_publish_time").val("<%= Time.parse(format_time(exercise.publish_time)).strftime("%Y-%m-%d") if !exercise.publish_time.nil?%>");
-        $("#exercise_description").val("<%=exercise.exercise_description %>");
+        /*$("#exercise_description").text("<%#=exercise.exercise_description.html_safe %>");*/
+        document.getElementById("exercise_description").innerText = <%=exercise.exercise_description.html_safe %>;
     }
 </script>
\ No newline at end of file
diff --git a/app/views/exercise/_exercise_form.html.erb b/app/views/exercise/_exercise_form.html.erb
index e283f8b0c..f0bef74bf 100644
--- a/app/views/exercise/_exercise_form.html.erb
+++ b/app/views/exercise/_exercise_form.html.erb
@@ -9,7 +9,7 @@
     var popWindow ; //弹出框的引用
     var importPollPopWindow; //选择导入的弹出框引用
     function edit_head(){
-        $("#polls_description").val($("#polls_description_div").html());
+        $("#exercise_description").val($("#exercise_description_div").html());
     }
     $(function(){
         //点击空白处
diff --git a/app/views/exercise/_exercise_student_result.html.erb b/app/views/exercise/_exercise_student_result.html.erb
index 93e52b0a1..529a73da3 100644
--- a/app/views/exercise/_exercise_student_result.html.erb
+++ b/app/views/exercise/_exercise_student_result.html.erb
@@ -32,8 +32,8 @@
               <div>
                 <div class="testEditTitle"> 第<%= list_index+1%>题：<%= exercise_question.question_title %>&nbsp;&nbsp;(<%= exercise_question.question_score %>分)
                   <span class="ml15 c_red">
-                    <% answer = get_user_answer(exercise_question, User.current)%>
-                    <% standard_answer = get_user_standard_answer(exercise_question, User.current)%>
+                    <% answer = get_user_answer(exercise_question, user)%>
+                    <% standard_answer = get_user_standard_answer(exercise_question, user)%>
                     <% if !answer.empty? && !standard_answer.empty? && answer.first.exercise_choice.choice_position == standard_answer.first.exercise_choice_id %>
                         √
                     <% else %>
@@ -49,7 +49,7 @@
                         <tr>
                           <td>
                             <label>
-                              <%= radio_button "exercise",exercise_question.id.to_s+"exercise_choice_id",exercise_choice.id,:class=>"ur_radio",:checked => answer_be_selected?(exercise_choice,User.current),:disabled => !@can_edit_excercise %>
+                              <%= radio_button "exercise",exercise_question.id.to_s+"exercise_choice_id",exercise_choice.id,:class=>"ur_radio",:checked => answer_be_selected?(exercise_choice,user),:disabled => !@can_edit_excercise %>
                               <%= convert_to_char((index+1).to_s)%>&nbsp;&nbsp;<%= exercise_choice.choice_text%>
                             </label>
                           </td>
@@ -71,9 +71,9 @@
               <div>
                 <div class="testEditTitle"> 第<%= list_index+1%>题：<%= exercise_question.question_title %>&nbsp;&nbsp;(<%= exercise_question.question_score %>分)
                   <span class="ml15 c_red">
-                    <% answer = get_user_answer(exercise_question, User.current)%>
-                    <% standard_answer = get_user_standard_answer(exercise_question, User.current)%>
-                    <% if !standard_answer.empty? && get_mulscore(exercise_question, User.current).to_i == standard_answer.first.exercise_choice_id %>
+                    <% answer = get_user_answer(exercise_question, user)%>
+                    <% standard_answer = get_user_standard_answer(exercise_question, user)%>
+                    <% if !standard_answer.empty? && get_mulscore(exercise_question, user).to_i == standard_answer.first.exercise_choice_id %>
                         √
                     <% else %>
                         ×
@@ -88,7 +88,7 @@
                         <tr>
                           <td>
                             <label>
-                              <input class="ur_radio" type="checkbox" <%= answer_be_selected?(exercise_choice,User.current) ? "checked":"" %> <%= @can_edit_poll?"":"disabled=disabled" %> >
+                              <input class="ur_radio" type="checkbox" <%= answer_be_selected?(exercise_choice,user) ? "checked":"" %> <%= @can_edit_excercise?"":"disabled=disabled" %> >
                               <%= convert_to_char((index+1).to_s)%>&nbsp;&nbsp;<%= exercise_choice.choice_text%>
                             </label>
                           </td>
@@ -110,8 +110,8 @@
               <div>
                 <div class="testEditTitle"> 第<%= list_index+1%>题：<%= exercise_question.question_title %>&nbsp;&nbsp;(<%= exercise_question.question_score %>分)
                   <span class="ml15 c_red">
-                    <% answer = get_user_answer(exercise_question, User.current)%>
-                    <% standard_answer = get_user_standard_answer(exercise_question, User.current)%>
+                    <% answer = get_user_answer(exercise_question, user)%>
+                    <% standard_answer = get_user_standard_answer(exercise_question, user)%>
                     <% if !answer.empty? && !standard_answer.empty? && standard_answer.include?(answer.first.answer_text) %>
                         √
                     <% else %>
@@ -126,7 +126,7 @@
                   <% end %>
                 </div>
                 <div>
-                  <input class="fillInput" placeholder="在此填入答案" type="text" value="<%= get_anwser_vote_text(exercise_question.id,User.current.id).html_safe %>" <%= @can_edit_poll?"":"disabled=disabled" %>>
+                  <input class="fillInput" placeholder="在此填入答案" type="text" value="<%= get_anwser_vote_text(exercise_question.id,user.id).html_safe %>" <%= @can_edit_excercise?"":"disabled=disabled" %>>
                 </div>
               </div>
             </div>
diff --git a/app/views/exercise/_show_head.html.erb b/app/views/exercise/_show_head.html.erb
index f385e58b8..cfa814c2e 100644
--- a/app/views/exercise/_show_head.html.erb
+++ b/app/views/exercise/_show_head.html.erb
@@ -11,7 +11,6 @@
         <span>测验时长：<%= exercise.time %>分钟</span>
     <% end %>
   </div>
-  <div class="testDesEdit mt5"><%= exercise.exercise_description.nil? ? "" : exercise.exercise_description.html_safe%></div>
-  <div class="cl"></div>
+  <pre class="fontGrey2 font_cus"><%= exercise.exercise_description.nil? ? "" :exercise.exercise_description.html_safe%></pre>
   <div class="cl"></div>
 </div>
\ No newline at end of file
diff --git a/app/views/exercise/_student_exercise.html.erb b/app/views/exercise/_student_exercise.html.erb
index 25bf3f7cd..4e27d57cb 100644
--- a/app/views/exercise/_student_exercise.html.erb
+++ b/app/views/exercise/_student_exercise.html.erb
@@ -44,7 +44,13 @@
             <li>
               <ul class="mt10 fl">
                 <li class="hworkStName mr15 mt16" title="姓名">
-                  <%= exercise.user.show_name%>
+                  <% name = exercise.user.show_name %>
+                  <% if Time.parse(h(@exercise.end_time)).strftime("%Y-%m-%d-%H-%M-%S") <= Time.now.strftime("%Y-%m-%d-%H-%M-%S") %>
+                    <%= link_to name,show_student_result_exercise_path(@exercise,:user_id => exercise.user.id) %>
+                  <% else %>
+                    <span title="截止日期未到，暂不能查看学生答题结果。"><%=name%></span>
+                      <%#= link_to name,'',:title=>"截止日期未到，暂不能查看学生答题结果。" %>
+                  <% end %>
                 </li>
                 <li class="hworkStID mr10 mt16" title="学号">
                   <%= exercise.user.user_extensions.nil? ? "--" : exercise.user.user_extensions.student_id%>
diff --git a/app/views/exercise/show.html.erb b/app/views/exercise/show.html.erb
index f47710d1c..c488ec203 100644
--- a/app/views/exercise/show.html.erb
+++ b/app/views/exercise/show.html.erb
@@ -5,6 +5,6 @@
     <% if @can_edit_excercise %>
         <%=render :partial => 'exercise_student', :locals => {:exercise =>@exercise, :exercise_questions => @exercise_questions,:exercise_user => @exercise_user} %>
     <% else %>
-        <%=render :partial => 'exercise_student_result', :locals => {:exercise =>@exercise, :exercise_questions => @exercise_questions,:exercise_user => @exercise_user} %>
+        <%=render :partial => 'exercise_student_result', :locals => {:exercise =>@exercise, :exercise_questions => @exercise_questions,:exercise_user => @exercise_user,:user=>User.current} %>
     <% end %>
 <% end %>
\ No newline at end of file
diff --git a/app/views/exercise/show_student_result.html.erb b/app/views/exercise/show_student_result.html.erb
new file mode 100644
index 000000000..6b32a0dd0
--- /dev/null
+++ b/app/views/exercise/show_student_result.html.erb
@@ -0,0 +1 @@
+<%=render :partial => 'exercise_student_result', :locals => {:exercise =>@exercise, :exercise_questions => @exercise_questions,:exercise_user => @exercise_user,:user =>@user} %>
\ No newline at end of file
diff --git a/config/routes.rb b/config/routes.rb
index d137553ad..cbff8558f 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -168,6 +168,7 @@ RedmineApp::Application.routes.draw do
       get 'export_exercise'
       get 'publish_exercise'
       get 'republish_exercise'
+      get 'show_student_result'
       post 'create_exercise_question'
       post 'commit_answer'
       post 'commit_exercise'
diff --git a/public/stylesheets/courses.css b/public/stylesheets/courses.css
index 17ed37e05..25ba6e488 100644
--- a/public/stylesheets/courses.css
+++ b/public/stylesheets/courses.css
@@ -1166,5 +1166,5 @@ a:hover.testEdit{ background:url(images/icons.png) -21px -272px  no-repeat;}
 .questionEditContainer {border:1px solid #cbcbcb;background:#eeeeee; padding:10px; margin-bottom:10px; margin-top:10px;}
 .fillInput {border:1px solid #cbcbcb; padding-left:5px; background-color:#ffffff; width:693px; height:30px; color:#888888;}
 .mr130 {margin-right:130px;}
-.mr100 {margin-right:100px;}
-.ur_button_submit{ display:block; width:106px; height:31px; margin:0 auto; background:#15bccf; color:#fff; font-size:16px; text-align:center; padding-top:4px; margin-bottom:10px; }
\ No newline at end of file
+.ur_button_submit{ display:block; width:106px; height:31px; margin:0 auto; background:#15bccf; color:#fff; font-size:16px; text-align:center; padding-top:4px; margin-bottom:10px; }
+.font_cus {font-family: "微软雅黑","宋体"; font-size: 12px; line-height: 1.5;}
\ No newline at end of file