diff --git a/app/controllers/weapps/challenges_controller.rb b/app/controllers/weapps/challenges_controller.rb
index 49d065f03..e6ba35731 100644
--- a/app/controllers/weapps/challenges_controller.rb
+++ b/app/controllers/weapps/challenges_controller.rb
@@ -3,8 +3,8 @@ class Weapps::ChallengesController < Weapps::BaseController
   before_action :set_challenge
 
   def is_play
-    # 关卡有展示效果 || 选择题 || jupyter实训 || 隐藏代码窗口 || html+css实训
-    play = @challenge.show_type != -1 || @challenge.st == 1 || @shixun.is_jupyter? ||
+    # 关卡有展示效果 || 选择题 || jupyter实训 || vnc || 隐藏代码窗口 || html+css实训
+    play = @challenge.show_type != -1 || @challenge.st == 1 || @shixun.is_jupyter? || @shixun.vnc ||
         @shixun.hide_code? || (@shixun.small_mirror_name & ["Css", "Html", "Web"]).present?
     if play
       normal_status(-5, "该关卡暂不支持小程序")
diff --git a/app/controllers/weapps/sessions_controller.rb b/app/controllers/weapps/sessions_controller.rb
index 732d0a686..2dbab7aa7 100644
--- a/app/controllers/weapps/sessions_controller.rb
+++ b/app/controllers/weapps/sessions_controller.rb
@@ -17,7 +17,13 @@ class Weapps::SessionsController < Weapps::BaseController
 
     # session[:wechat_user_extra].delete(:nickName)
     # 绑定微信号
-    OpenUsers::Wechat.create!(user: user, uid: session_unionid) if user.wechat_open_user.blank?
+    # open_user = OpenUsers::Wechat.find_by(uid: session_unionid)
+    # if open_user.present? && open_user.user_id.nil?
+    #   open_user.update!(user_id: user.id)
+    # els
+    if user.wechat_open_user.blank?
+      OpenUsers::Wechat.create!(user: user, uid: session_unionid)
+    end
 
     successful_authentication(user)
   end
diff --git a/app/controllers/weapps/unbind_accounts_controller.rb b/app/controllers/weapps/unbind_accounts_controller.rb
index 4698108e3..53c8d8478 100644
--- a/app/controllers/weapps/unbind_accounts_controller.rb
+++ b/app/controllers/weapps/unbind_accounts_controller.rb
@@ -7,7 +7,8 @@ class Weapps::UnbindAccountsController < Weapps::BaseController
 
   def destroy
     open_user = OpenUsers::Wechat.find_by!(user_id: current_user.id)
-    open_user.update!(user_id: nil)
+    session[:unionid] = open_user.uid
+    open_user.destroy!
     UserAction.create(action_id: current_user.id, action_type: "UnbindWechat", user_id: current_user.id, :ip => request.remote_ip)
     logout_user
     render_ok
diff --git a/app/helpers/homework_commons_helper.rb b/app/helpers/homework_commons_helper.rb
index f962288eb..3061a6e80 100644
--- a/app/helpers/homework_commons_helper.rb
+++ b/app/helpers/homework_commons_helper.rb
@@ -171,10 +171,10 @@ module HomeworkCommonsHelper
     {status: status, time: time}
   end
 
-  # 作品数统计：type： 1 已提交  0 未提交
+  # 作品数统计：type： 1 已提交  0 未提交  2 所有
   def studentwork_count homework_common, type, member
     student_works = homework_common.teacher_works(member)
-    type == 1 ? student_works.where("work_status != 0").size : student_works.where(work_status: 0).size
+    type == 2 ? student_works.size : (type == 1 ? student_works.where("work_status != 0").size : student_works.where(work_status: 0).size)
   end
 
   # 上次查重的时间
diff --git a/app/views/homework_commons/index.json.jbuilder b/app/views/homework_commons/index.json.jbuilder
index 00c50e519..6b34eb220 100644
--- a/app/views/homework_commons/index.json.jbuilder
+++ b/app/views/homework_commons/index.json.jbuilder
@@ -27,6 +27,7 @@ json.homeworks @homework_commons.each do |homework|
   unless curr_status[:status].include?("未发布")
     json.commit_count studentwork_count homework, 1, @member
     json.uncommit_count studentwork_count homework, 0, @member
+    json.all_count studentwork_count homework, 2, @member
   end
 
   if homework.homework_type == "practice"
diff --git a/app/views/weapps/unbind_accounts/show.json.jbuilder b/app/views/weapps/unbind_accounts/show.json.jbuilder
index 057823247..c4223a021 100644
--- a/app/views/weapps/unbind_accounts/show.json.jbuilder
+++ b/app/views/weapps/unbind_accounts/show.json.jbuilder
@@ -1 +1 @@
-json.user_account @user.phone.present? ? @user.phone : @user.mail
+json.user_account @user.phone.present? ? @user.phone : (@user.mail.present? ? @user.mail : @user.login)