diff --git a/app/assets/javascripts/comments.js b/app/assets/javascripts/comments.js
new file mode 100644
index 000000000..dee720fac
--- /dev/null
+++ b/app/assets/javascripts/comments.js
@@ -0,0 +1,2 @@
+// Place all the behaviors and hooks related to the matching controller here.
+// All this logic will automatically be available in application.js.
diff --git a/app/assets/stylesheets/comments.scss b/app/assets/stylesheets/comments.scss
new file mode 100644
index 000000000..3722c124e
--- /dev/null
+++ b/app/assets/stylesheets/comments.scss
@@ -0,0 +1,3 @@
+// Place all the styles related to the comments controller here.
+// They will automatically be included in application.css.
+// You can use Sass (SCSS) here: http://sass-lang.com/
diff --git a/app/controllers/comments_controller.rb b/app/controllers/comments_controller.rb
new file mode 100644
index 000000000..851567c92
--- /dev/null
+++ b/app/controllers/comments_controller.rb
@@ -0,0 +1,59 @@
+class CommentsController < ApplicationController
+  before_action :find_hack
+  before_action :require_login
+
+
+  # 评论
+  def create
+    begin
+      @discuss = @hack.discusses.new(comment_params) # 管理员回复的能够显示
+      @discuss.hidden = false
+      @discuss.user_id = current_user.id
+      @discuss.save!
+    rescue Exception => e
+      uid_logger_error("create discuss failed : #{e.message}")
+      render_error("评论异常")
+    end
+  end
+
+  # 回复
+  def reply
+    begin
+      @discuss = @hack.discusses.new(reply_params)
+      @discuss.hidden = false
+      @discuss.user_id = current_user.id
+      @discuss.root_id = params[:parent_id]
+      @discuss.save!
+    rescue Exception => e
+      uid_logger_error("reply discuss failed : #{e.message}")
+      render_error("回复评论异常")
+    end
+  end
+
+  # 列表
+  def index
+    disscusses = @hack.disscusses.where(:root_id => nil)
+    @disscuss_count = disscusses.count
+    @disscusses= paginate disscusses
+  end
+
+  # 删除
+  def destroy
+    @hack.discusses.find_by(id: params[:id]).destroy
+    render_ok
+  end
+
+
+  private
+  def find_hack
+    @hack = Hack.find_by_identifier params[:identifier]
+  end
+
+  def comment_params
+    params.require(:comments).permit(:content)
+  end
+
+  def reply_params
+    params.require(:comments).permit(:content, :parent_id)
+  end
+end
diff --git a/app/controllers/hack_user_lastest_codes_controller.rb b/app/controllers/hack_user_lastest_codes_controller.rb
index bbe94233f..56cda57d7 100644
--- a/app/controllers/hack_user_lastest_codes_controller.rb
+++ b/app/controllers/hack_user_lastest_codes_controller.rb
@@ -1,12 +1,13 @@
 class HackUserLastestCodesController < ApplicationController
   before_action :require_login, except: [:listen_result]
-  before_action :find_my_hack, only: [:show, :code_debug, :code_submit, :update_code, :listen_result, :result]
+  before_action :find_my_hack, only: [:show, :code_debug, :code_submit, :update_code,
+                                      :listen_result, :result, :submit_records]
   before_action :update_user_hack_status, only: [:code_debug, :code_submit]
   before_action :require_auth_identity, only: [:update_code]
   before_action :require_manager_identity, only: [:update_code]
 
   def show
-    @my_hack.update_attribute(:status, 0) if @my_hack.status == 1
+    @my_hack.update_attribute(:submit_status, 0) if @my_hack.submit_status == 1
   end
 
   def update_code
@@ -33,8 +34,26 @@ class HackUserLastestCodesController < ApplicationController
 
   # 提交结果显示
   def result
-    return if @my_hack.status == 1
+    if @my_hack.submit_status == 1
+      render json: {status:0, message: "正在评测中"}
+    else
+      @mode = params[:mode]
+      @result =
+          if @mode == "submit"
+            @my_hack.hack_user_codes.last
+          elsif @mode == "debug"
+            @my_hack.hack_user_debug
+          end
+    end
+  end
+
+  # 提交记录
+  def submit_records;end
+
 
+  # 提交记录详情
+  def record_detail
+    @hack_user = HackUserCode.find params[:id]
   end
 
   # 接收中间件返回结果接口
@@ -60,7 +79,7 @@ class HackUserLastestCodesController < ApplicationController
         if ojEvaResult['execMode'] == "debug"
           save_debug_data ds_params
         elsif ojEvaResult['execMode'] == "submit"
-          save_submit_data ds_params
+          save_submit_data ds_params.merge(expected_output: testCase['expectedOutput'])
         end
         # 评测完成后，还原评测中的状态
         @my_hack.update_attribute(:submit_status, 0)
@@ -132,7 +151,7 @@ class HackUserLastestCodesController < ApplicationController
         RewardExperienceService.call(@my_hack.user, reward_attrs)
         # 评测完成更新通过数
         @hack.increment!(:pass_num)
-        @my_hack.update_attribute(:passed, true)
+        @my_hack.update_attributes(passed: true, passed_time: Time.now)
       end
     end
     # 创建用户评测记录
diff --git a/app/helpers/comments_helper.rb b/app/helpers/comments_helper.rb
new file mode 100644
index 000000000..0ec9ca5f2
--- /dev/null
+++ b/app/helpers/comments_helper.rb
@@ -0,0 +1,2 @@
+module CommentsHelper
+end
diff --git a/app/models/hack.rb b/app/models/hack.rb
index 1256aa53f..adc6bba8c 100644
--- a/app/models/hack.rb
+++ b/app/models/hack.rb
@@ -8,6 +8,7 @@ class Hack < ApplicationRecord
   # 代码
   has_many :hack_codes, :dependent => :destroy
   has_many :hack_user_lastest_codes, :dependent => :destroy
+  has_many :discusses, as: :dis, dependent: :destroy
   belongs_to :user
 
   scope :published, -> { where(status: 1) }
diff --git a/app/models/hack_user_lastest_code.rb b/app/models/hack_user_lastest_code.rb
index 0a9e1131c..1d3e20f87 100644
--- a/app/models/hack_user_lastest_code.rb
+++ b/app/models/hack_user_lastest_code.rb
@@ -2,6 +2,7 @@ class HackUserLastestCode < ApplicationRecord
   # passed： 用户之前评测是否通过
   # status:  最新评测状态:  -1测试用例结果不匹配; 0: 评测通过; ;2	评测超时;3	创建pod失败; 4	编译失败;5	执行失败
   # submit_status: 0: 可以评测， 1：评测中
+  # passed_time:第一次通关的时间
   # 编程题最新代码
   belongs_to :hack, counter_cache: true
   belongs_to :user
diff --git a/app/views/comments/_discuss.json.jbuilder b/app/views/comments/_discuss.json.jbuilder
new file mode 100644
index 000000000..63bebc5a7
--- /dev/null
+++ b/app/views/comments/_discuss.json.jbuilder
@@ -0,0 +1,12 @@
+json.id discuss.id
+json.content content_safe(discuss.content)
+json.time time_from_now(discuss.created_at)
+json.position discuss.position
+json.hack_id discuss.dis_id
+# 主贴和回复有一些不同点
+if discuss.parent_id
+  json.can_delete discuss.can_deleted?(current_user)
+else
+  json.praise_count discuss.praises_count
+  json.user_praise discuss.praise_treads.select{|pt| pt.user_id == current_user.id}.length > 0
+end
\ No newline at end of file
diff --git a/app/views/comments/create.json.jbuilder b/app/views/comments/create.json.jbuilder
new file mode 100644
index 000000000..629c3b0a0
--- /dev/null
+++ b/app/views/comments/create.json.jbuilder
@@ -0,0 +1,4 @@
+json.discuss @discuss
+json.author do
+  json.partial! 'users/user', user: @discuss.user
+end
\ No newline at end of file
diff --git a/app/views/comments/index.json.jbuilder b/app/views/comments/index.json.jbuilder
new file mode 100644
index 000000000..399b144d9
--- /dev/null
+++ b/app/views/comments/index.json.jbuilder
@@ -0,0 +1,7 @@
+json.disscuss_count @disscuss_count
+json.comments @discusses do |discuss|
+  json.partial! 'comments/discuss', locals: { discuss: discuss}
+  json.children discuss.child_discuss(current_user) do |c_d|
+    json.partial! 'comments/discuss', locals: { discuss: c_d }
+  end
+end
diff --git a/app/views/comments/reply.json.jbuilder b/app/views/comments/reply.json.jbuilder
new file mode 100644
index 000000000..4024ee7ea
--- /dev/null
+++ b/app/views/comments/reply.json.jbuilder
@@ -0,0 +1 @@
+json.discuss @discuss
\ No newline at end of file
diff --git a/app/views/hack_user_lastest_codes/record_detail.json.jbuilder b/app/views/hack_user_lastest_codes/record_detail.json.jbuilder
new file mode 100644
index 000000000..247dced91
--- /dev/null
+++ b/app/views/hack_user_lastest_codes/record_detail.json.jbuilder
@@ -0,0 +1,2 @@
+json.(@hack_user, :id, :status, :error_line, :error_msg, :expected_output,
+    :input, :output, :execute_time, :execute_memory)
\ No newline at end of file
diff --git a/app/views/hack_user_lastest_codes/result.json.jbuilder b/app/views/hack_user_lastest_codes/result.json.jbuilder
new file mode 100644
index 000000000..31164d4f7
--- /dev/null
+++ b/app/views/hack_user_lastest_codes/result.json.jbuilder
@@ -0,0 +1,7 @@
+json.(@result, :id, :status, :error_line, :error_msg,
+    :input, :output, :execute_time, :execute_memory)
+# 提交模式多了一个预计输出
+if @mode == "submit"
+  json.expected_output @result.expected_output
+end
+
diff --git a/app/views/hack_user_lastest_codes/submit_records.json.jbuilder b/app/views/hack_user_lastest_codes/submit_records.json.jbuilder
new file mode 100644
index 000000000..9aa505160
--- /dev/null
+++ b/app/views/hack_user_lastest_codes/submit_records.json.jbuilder
@@ -0,0 +1,3 @@
+json.array! @my_hack.hack_user_codes do |hack_user|
+  json.(hack_user, :id, :created_at, :status, :execute_time, :execute_memory)
+end
\ No newline at end of file
diff --git a/config/routes.rb b/config/routes.rb
index 277139f20..abe31340d 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -44,6 +44,7 @@ Rails.application.routes.draw do
         get :start
         get :result
       end
+      resources :comments
     end
 
     resources :hack_user_lastest_codes, path: :myproblems,  param: :identifier do
diff --git a/db/migrate/20191120012538_remove_pass_time_for_hack_user_lastest_codes.rb b/db/migrate/20191120012538_remove_pass_time_for_hack_user_lastest_codes.rb
new file mode 100644
index 000000000..48063b9a2
--- /dev/null
+++ b/db/migrate/20191120012538_remove_pass_time_for_hack_user_lastest_codes.rb
@@ -0,0 +1,6 @@
+class RemovePassTimeForHackUserLastestCodes < ActiveRecord::Migration[5.2]
+  def change
+    remove_column :hack_user_lastest_codes, :pass_time
+    add_column :hack_user_codes, :expected_output, :text
+  end
+end
diff --git a/spec/controllers/comments_controller_spec.rb b/spec/controllers/comments_controller_spec.rb
new file mode 100644
index 000000000..ebb867fa2
--- /dev/null
+++ b/spec/controllers/comments_controller_spec.rb
@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe CommentsController, type: :controller do
+
+end
diff --git a/spec/helpers/comments_helper_spec.rb b/spec/helpers/comments_helper_spec.rb
new file mode 100644
index 000000000..729cd87bf
--- /dev/null
+++ b/spec/helpers/comments_helper_spec.rb
@@ -0,0 +1,15 @@
+require 'rails_helper'
+
+# Specs in this file have access to a helper object that includes
+# the CommentsHelper. For example:
+#
+# describe CommentsHelper do
+#   describe "string concat" do
+#     it "concats two strings with spaces" do
+#       expect(helper.concat_strings("this","that")).to eq("this that")
+#     end
+#   end
+# end
+RSpec.describe CommentsHelper, type: :helper do
+  pending "add some examples to (or delete) #{__FILE__}"
+end