diff --git a/app/api/mobile/entities/homework.rb b/app/api/mobile/entities/homework.rb
index cea15ece9..a5b981c6d 100644
--- a/app/api/mobile/entities/homework.rb
+++ b/app/api/mobile/entities/homework.rb
@@ -99,12 +99,13 @@ module Mobile
       homework_expose :coursename #所属班级名
 
       expose :current_user_is_teacher, if: lambda { |instance, options| options[:user] } do |instance, options|
-        current_user = options[:user]
-        current_user_is_teacher = false
-        current_user_is_teacher = is_course_teacher(current_user,instance.course)
-        current_user_is_teacher
+        if instance[:current_user_is_teacher].nil?
+          current_user = options[:user]
+          current_user_is_teacher = false
+          current_user_is_teacher = is_course_teacher(current_user,instance.course)
+          current_user_is_teacher
+        end
       end
-
     end
   end
 end
\ No newline at end of file
diff --git a/app/controllers/wechats_controller.rb b/app/controllers/wechats_controller.rb
index e596042d9..6b1e3010d 100644
--- a/app/controllers/wechats_controller.rb
+++ b/app/controllers/wechats_controller.rb
@@ -277,7 +277,7 @@ class WechatsController < ActionController::Base
             user: user
         )
         ws = WechatService.new
-        ws.binding_succ_notice(user.id, "您已成功绑定Trustie平台", user.login, format_time(Time.now))
+        ws.binding_succ_notice(user.id, "您已成功绑定Trustie平台！", user.login, format_time(Time.now))
         render :json => {status:0, msg: "绑定成功"}
       rescue Exception=>e
         render :json => {status: -1, msg: e.message}
diff --git a/app/services/courses_service.rb b/app/services/courses_service.rb
index 091e2749e..ab4b65f5c 100644
--- a/app/services/courses_service.rb
+++ b/app/services/courses_service.rb
@@ -335,6 +335,7 @@ class CoursesService
         8, '您已经是该班级的教师了',
         9, '您已经是该班级的教辅了',
         10, '您已经是该班级的管理员了',
+        11, '该班级不存在或已被删除啦',
         '未知错误，请稍后再试'
     ]
   end
@@ -348,6 +349,8 @@ class CoursesService
     if course
       if course_endTime_timeout? course
         @state = 2
+      elsif course[:is_delete] == 1
+        @state = 11
       else
         if current_user.member_of_course?(course) #如果已经是成员
           member = course.members.where("user_id=#{current_user.id} and course_id=#{course.id}")[0]
@@ -632,7 +635,7 @@ class CoursesService
      :homework_submit_num => bid.student_works.count,
      :homework_status_student => get_homework_status( bid),:homework_status_teacher =>  homework_status_desc( bid),
      :student_evaluation_part => get_evaluation_part( bid ,3),
-     :ta_evaluation_part => get_evaluation_part( bid ,2),:homework_anony_type => bid.homework_type == 1 && !bid.homework_detail_manual.nil?}
+     :ta_evaluation_part => get_evaluation_part( bid ,2),:homework_anony_type => bid.homework_type == 1 && !bid.homework_detail_manual.nil?,:current_user_is_teacher => is_course_teacher}
 
   end
 
diff --git a/app/services/wechat_service.rb b/app/services/wechat_service.rb
index 2da942ea6..7ac4e99d3 100644
--- a/app/services/wechat_service.rb
+++ b/app/services/wechat_service.rb
@@ -229,7 +229,7 @@ class WechatService
                   color:"#707070"
               },
               remark:{
-                  value:"绑定成功后可使用微信查看Trustie平台最新动态",
+                  value:"绑定成功后可使用微信查看Trustie平台最新动态。",
                   color:"#707070"
               }
           }
diff --git a/public/javascripts/wechat/controllers/class_list.js b/public/javascripts/wechat/controllers/class_list.js
index 9e0087135..488d1913c 100644
--- a/public/javascripts/wechat/controllers/class_list.js
+++ b/public/javascripts/wechat/controllers/class_list.js
@@ -59,7 +59,7 @@ app.controller('ClassListController', ['$scope', 'config', 'auth', '$http', '$lo
                     }).then(function (response) {
                         console.log(response.data);
                         if (response.data.status != 0) {
-                            vm.alertService_1.showMessage('错误', response.data.message);
+                            vm.alertService_1.showMessage('提示', response.data.message);
                         } else {
                             vm.alertService_1.showMessage('提示', '加入课程成功');
                             vm.alertService_3.invite = "";
@@ -68,9 +68,8 @@ app.controller('ClassListController', ['$scope', 'config', 'auth', '$http', '$lo
                     });
                 } else {
                     if(vm.alertService_3.invite){
-                        vm.alertService_1.showMessage('错误', '邀请码格式不正确');
+                        vm.alertService_1.showMessage('提示', '邀请码格式不正确');
                     }
-
                 }
             });
         };
diff --git a/public/javascripts/wechat/controllers/send_class_list.js b/public/javascripts/wechat/controllers/send_class_list.js
index 1eabfa94c..eee462ee3 100644
--- a/public/javascripts/wechat/controllers/send_class_list.js
+++ b/public/javascripts/wechat/controllers/send_class_list.js
@@ -46,7 +46,15 @@ app.controller('SendClassListController', ['$scope', '$http','$routeParams', 'co
         }).then(function(response){
             console.log(response.data);
             if(response.data.status == 0){
-                vm.alertService.showMessage('发送成功', '题目已发送到目标班级的作业列表，但需要您访问Trustie网站设置发布和截止时间，以激活相应作业，谢谢！', function () {
+                var tip = "";
+                if (vm.myresource_sendIndex == 1){
+                    tip = "课件已发送到目标班级。";
+                }
+                else if(vm.myresource_sendIndex == 2){
+                    tip = "题目已发送到目标班级的作业列表，但需要您访问Trustie网站设置发布和截止时间，以激活相应作业，谢谢。";
+                }
+
+                vm.alertService.showMessage('发送成功', tip, function () {
                     window.history.back();
                 });
             } else {