diff --git a/app/controllers/graduation_topics_controller.rb b/app/controllers/graduation_topics_controller.rb
index bd93401f3..0242bff21 100644
--- a/app/controllers/graduation_topics_controller.rb
+++ b/app/controllers/graduation_topics_controller.rb
@@ -230,6 +230,7 @@ class GraduationTopicsController < ApplicationController
                                          topic_repeat: topic.topic_repeat,
                                          province: topic.province,
                                          city: topic.city,
+                                         topic_type: topic.topic_type,
                                          course_list_id:  @course.course_list_id)
             topic_bank.attachments.destroy_all
           else
@@ -241,6 +242,7 @@ class GraduationTopicsController < ApplicationController
                                         topic_repeat: topic.topic_repeat,
                                         province: topic.province,
                                         city: topic.city,
+                                        topic_type: topic.topic_type,
                                         course_list_id:  @course.course_list_id,
                                         user_id: current_user.id,
                                         graduation_topic_id: topic.id)
diff --git a/app/controllers/shixuns_controller.rb b/app/controllers/shixuns_controller.rb
index 74d1d05e2..e910db8cc 100644
--- a/app/controllers/shixuns_controller.rb
+++ b/app/controllers/shixuns_controller.rb
@@ -8,11 +8,11 @@ class ShixunsController < ApplicationController
 
 	before_action :find_shixun,  except: [:index, :new, :create, :menus, :get_recommend_shixuns,
 																				:propaedeutics, :departments, :apply_shixun_mirror,
-																				:get_mirror_script, :download_file]
+																				:get_mirror_script, :download_file, :shixun_list]
 
 	before_action :shixun_access_allowed, except: [:index, :new, :create, :menus, :get_recommend_shixuns,
 																								 :propaedeutics, :departments, :apply_shixun_mirror,
-																								 :get_mirror_script, :download_file]
+																								 :get_mirror_script, :download_file, :shixun_list]
 	before_action :find_repo_name, only: [:repository, :commits, :file_content, :update_file, :shixun_exec, :copy, :add_file]
 
 	before_action :allowed, only:  [:update, :close, :update_propaedeutics, :settings, :publish,
@@ -98,6 +98,50 @@ class ShixunsController < ApplicationController
 											.each_with_object({}) { |r, obj| obj[r.shixun_id] = r.name }
   end
 
+	def shixun_list
+		# 全部实训/我的实训
+		type = params[:type] || "all"
+		# 状态：已发布/未发布
+		status = params[:status] || "all"
+
+		# 超级管理员用户显示所有未隐藏的实训、非管理员显示所有已发布的实训（对本单位公开且未隐藏未关闭）
+		if type == "mine"
+			@shixuns = current_user.shixuns.none_closed
+		else
+			if current_user.admin?
+				@shixuns = Shixun.none_closed.where(hidden: 0)
+			else
+				none_shixun_ids = ShixunSchool.where("school_id != #{current_user.school_id}").pluck(:shixun_id)
+
+				@shixuns = Shixun.where.not(id: none_shixun_ids).none_closed.where(hidden: 0)
+			end
+		end
+
+		unless status == "all"
+			@shixuns = status == "published" ? @shixuns.where(status: 2) : @shixuns.where(status: [0, 1])
+		end
+
+		## 搜索关键字创建者、实训名称、院校名称
+		unless params[:search].blank?
+		  keyword = params[:search].strip
+		  @shixuns = @shixuns.joins(user: [user_extension: :school]).
+		      where("schools.name like '%#{keyword}%'
+		              or concat(lastname, firstname) like '%#{keyword}%'
+		              or shixuns.name like '%#{keyword.split(" ").join("%")}%'").distinct
+		end
+
+		## 筛选 难度
+		if params[:diff].present? && params[:diff].to_i != 0
+		  @shixuns = @shixuns.where(trainee: params[:diff])
+		end
+
+		@total_count = @shixuns.count
+		page  = params[:page]  || 1
+		limit = params[:limit] || 15
+
+		@shixuns = @shixuns.order("myshixuns_count desc").page(page).per(limit).includes(:shixun_info, :subjects, user: [user_extension: :school])
+	end
+
   ## 获取顶部菜单
 	def menus
   	@repertoires = Repertoire.includes(sub_repertoires: [:tag_repertoires]).order("updated_at asc")
diff --git a/app/models/shixun.rb b/app/models/shixun.rb
index db6bca43e..33d36d026 100644
--- a/app/models/shixun.rb
+++ b/app/models/shixun.rb
@@ -59,6 +59,7 @@ class Shixun < ApplicationRecord
   scope :visible, -> { where.not(status: -1) }
   scope :published, lambda{ where(status: 2) }
   scope :published_closed, lambda{ where(status: [2, 3]) }
+  scope :none_closed, lambda{ where(status: [0, 1, 2]) }
   scope :unhidden, lambda{ where(hidden: 0, status: 2) }
   scope :field_for_recommend, lambda{ select([:id, :name, :identifier, :myshixuns_count]) }
   scope :find_by_ids,lambda{|k| where(id:k)}
diff --git a/app/views/shixuns/shixun_list.json.jbuilder b/app/views/shixuns/shixun_list.json.jbuilder
new file mode 100644
index 000000000..13c556014
--- /dev/null
+++ b/app/views/shixuns/shixun_list.json.jbuilder
@@ -0,0 +1,15 @@
+json.shixun_list @shixuns do |shixun|
+  json.shixun_id shixun.id
+  json.identifier shixun.identifier
+  json.shixun_name shixun.name
+  json.description shixun.description
+  json.myshixuns_count shixun.myshixuns_count
+  json.school shixun.user&.school_name
+  json.creator shixun.user&.full_name
+  json.level level_to_s(shixun.trainee)
+  json.subjects shixun.subjects do |subject|
+    json.(subject, :id, :name)
+  end
+end
+
+json.shixuns_count @total_count
\ No newline at end of file
diff --git a/config/routes.rb b/config/routes.rb
index e92440ae7..417b8cbea 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -179,6 +179,7 @@ Rails.application.routes.draw do
         get :get_mirror_script
         post :apply_shixun_mirror
         get :download_file
+        get :shixun_list
       end
 
       member do
diff --git a/lib/tasks/public_course_sync.rake b/lib/tasks/public_course_sync.rake
new file mode 100644
index 000000000..928cd9113
--- /dev/null
+++ b/lib/tasks/public_course_sync.rake
@@ -0,0 +1,149 @@
+#coding=utf-8
+# 执行示例  bundle exec rake public_course:student args=149,2903
+# args 第一个参数是subject_id，第二个参数是课程course_id
+# 第一期时间：2018-12-16 至2019-03-31
+# 第二期时间：2019-04-07 至2019-07-28
+#
+# 这次学习很有收获，感谢老师提供这么好的资源和细心的服务🎉🎉🎉
+#
+
+desc "同步精品课数据"
+namespace :public_classes do
+  if ENV['args']
+    subject_id = ENV['args'].split(",")[0] # 对应课程的id
+    course_id = ENV['args'].split(",")[1] # 对应课堂的id
+    start_time = ENV['args'].split(",")[2] # 表示课程模块
+    end_time = ENV['args'].split(",")[3] # 表示课程模块
+    limit = ENV['args'].split(",")[4] # 限制导入的数量
+    type = ENV['args'].split(",")[5] # 表示课程模块
+  end
+
+
+  task :student => :environment do
+    puts "subject_id is #{subject_id}"
+    puts "course_id is #{course_id}"
+
+    user_ids = Myshixun.find_by_sql("select distinct(user_id) from myshixuns where created_at between #{start_time} and #{end_time} and shixun_id in (select shixun_id from stage_shixuns
+                                     where stage_id in (select id from stages where subject_id=#{subject_id})) limit #{limit}").map(&:user_id)
+    puts user_ids
+    if user_ids.present?
+      user_ids.each do |user_id|
+        puts user_id
+        begin
+          CourseMember.create!(course_id: course_id, user_id: user_id, role: 4)
+        rescue Exception => e
+          Rails.logger(e.message)
+        end
+      end
+    end
+  end
+
+  task :test_user => :environment do
+    users = User.where(is_test: true)
+    users.limit(limit).find_each do |user|
+      puts user.id
+      CourseMember.create!(course_id: course_id, user_id: user.id, role: 4)
+    end
+  end
+
+
+  # 更新某个课程的某类时间
+  # 执行示例  RAILS_ENV=production bundle exec rake public_course:time args=-1,2932,1,1
+  task :time => :environment do
+    # course_id = ENV['args'].split(",")[0] # 对应课堂的id
+    # type = ENV['args'].split(",")[1]
+
+    course = Course.find(course_id)
+
+    case type.to_i
+    when 1
+      # 讨论区
+      messages = Message.where(board_id: course.boards)
+      messages.each do |message|
+        created_on = random_time start_time, end_time
+        puts created_on
+        message.update_columns(created_on: created_on, updated_on: created_on)
+        MessageDetail.where(message_id: message.id).each do |detail|
+          rand_created_on = random_time start_time, end_time
+          detail.update_columns(created_at: rand_created_on, updated_at: rand_created_on)
+        end
+      end
+    when 2
+      # 作业
+      course.homework_commons.each do |homework|
+        created_at = random_time(start_time, end_time)
+        publish_time = random_larger_time created_at, start_time, end_time
+        end_time = random_larger_time publish_time, start_time, end_time
+        updated_at = end_time
+
+        homework.update_columns(publish_time: publish_time, end_time: end_time, created_at: created_at, updated_at: updated_at)
+        homework.homework_detail_manual.update_columns(comment_status: 6, created_at: created_at, updated_at: updated_at)
+
+        homework.student_works.where("work_status !=0 and update_time > '#{end_time}'").update_all(update_time: end_time)
+      end
+    when 3
+      # 试卷
+      course.exercises.each do |exercise|
+        created_at = random_time start_time, end_time
+        publish_time = random_larger_time created_at, start_time, end_time
+        end_time = random_larger_time publish_time, start_time, end_time
+        updated_at = end_time
+
+        exercise.update_columns(publish_time: publish_time, end_time: end_time, created_at: created_at, updated_at: updated_at, exercise_status: 3)
+      end
+    when 4
+      # 资源
+      course.attachments.each do |atta|
+        created_on = random_time start_time, end_time
+
+        atta.update_columns(is_publish: 1, created_on: created_on, publish_time: created_on)
+      end
+    end
+
+  end
+
+  task :create_homework_work => :environment do
+    course = Course.find(course_id)
+    course.practice_homeworks.each do |homework|
+      if homework.student_works.count == 0
+        str = ""
+        CourseMember.students(course).each do |student|
+          str += "," if str != ""
+          str += "(#{homework.id},#{student.user_id}, '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}')"
+        end
+        if str != ""
+          sql = "insert into student_works (homework_common_id, user_id, created_at, updated_at) values" + str
+          ActiveRecord::Base.connection.execute sql
+        end
+      end
+    end
+  end
+
+  def min_swith(time)
+    puts time
+    return time < 9 ? "0#{time}" : time
+  end
+
+  def random_time(start_time, end_time)
+    hour = (6..23).to_a.sample(1).first
+    min = rand(60)
+    sec = rand(60)
+
+    start_time = Date.parse(start_time)
+    end_time = Date.parse(end_time)
+    date = (start_time..end_time).to_a.sample(1).first
+
+    time = "#{date} #{min_swith(hour)}:#{min_swith(min)}:#{min_swith(sec)}"
+
+    puts time
+    time
+  end
+
+  def random_larger_time(time, start_time, end_time)
+    large_time = random_time(start_time, end_time)
+    while large_time <= time
+      large_time = random_time(start_time, end_time)
+    end
+    large_time
+  end
+end
\ No newline at end of file
diff --git a/public/react/src/modules/courses/coursesDetail/CoursesLeftNav.js b/public/react/src/modules/courses/coursesDetail/CoursesLeftNav.js
index 1a7c19824..24235d723 100644
--- a/public/react/src/modules/courses/coursesDetail/CoursesLeftNav.js
+++ b/public/react/src/modules/courses/coursesDetail/CoursesLeftNav.js
@@ -749,9 +749,9 @@ class Coursesleftnav extends Component{
       {/*毕业设计*/}
       {/*{item.type==="graduation"?<div onClick={()=>this.Navmodalnames(1,"attachment",item.id)}>添加目录</div>:""}*/}
       {/*讨论区*/}
-      {item.type==="board"?<div onClick={e=>this.Navmodalnames(e,6,"board",item.main_id)}>添加目录</div>:""}
+      {item.type==="board"?this.props.current_user&&this.props.current_user.course_is_end===true?"":<div onClick={e=>this.Navmodalnames(e,6,"board",item.main_id)}>添加目录</div>:""}
       {/*分班*/}
-      {item.type==="course_group"?<div onClick={e=>this.Navmodalnames(e,2,"course_group",item.id)}>添加分班</div>:""}
+      {item.type==="course_group"?this.props.current_user&&this.props.current_user.course_is_end===true?"":<div onClick={e=>this.Navmodalnames(e,2,"course_group",item.id)}>添加分班</div>:""}
       {/*分班*/}
       {/*{item.type==="course_group"? :""}*/}
       <div onClick={e=>this.Navmodalnames(e,3,"editname",item.id,item.name)}>重命名</div>
@@ -798,7 +798,6 @@ class Coursesleftnav extends Component{
 
     // console.log("778");
     // console.log("CoursesLeftNav");
-    // console.log(this.props);
     // console.log(course_modules);
 
     return(
diff --git a/public/react/src/modules/courses/shixunHomework/Listofworksstudentone.js b/public/react/src/modules/courses/shixunHomework/Listofworksstudentone.js
index 73ea4a221..bba76386a 100644
--- a/public/react/src/modules/courses/shixunHomework/Listofworksstudentone.js
+++ b/public/react/src/modules/courses/shixunHomework/Listofworksstudentone.js
@@ -3157,16 +3157,16 @@ class Listofworksstudentone extends Component {
 
 															<span className="fl  mr10 color-grey-6 ">计算成绩时间：{teacherdata&&teacherdata.calculation_time==null?"--":	moment(teacherdata&&teacherdata.calculation_time).format('YYYY-MM-DD HH:mm')}</span>
 															{	course_is_end===true?"":teacherdata&&teacherdata.task_operation&&teacherdata.task_operation[0]==="开启挑战"?"":<span>
-													{computeTimetype===true?
-														(this.props.isNotMember()===false?<div className={"computeTime font-13"} onClick={this.setComputeTime}>
-															计算成绩
-														</div>:""):
-														teacherdata&&teacherdata.homework_status!==undefined&&teacherdata.homework_status[0]=== "未发布"? "":
-															(this.props.isNotMember()===false?<div className={"computeTimes font-13"}>
-																计算成绩
-															</div>:"")
-													}
-												 </span>}
+																{computeTimetype===true?
+																	(this.props.isNotMember()===false?<div className={"computeTime font-13"} onClick={this.setComputeTime}>
+																		计算成绩
+																	</div>:""):
+																	teacherdata&&teacherdata.homework_status!==undefined&&teacherdata.homework_status[0]=== "未发布"? "":
+																		(this.props.isNotMember()===false?<div className={"computeTimes font-13"}>
+																			计算成绩
+																		</div>:"")
+																}
+												 			</span>}
 
 														</div>
 														{/*因为计算按钮占了和这个位置，和设计沟通学生视角取消这个按钮*/}