diff --git a/web/src/main/resources/static/js/jlw/teachingManagement/add.js b/web/src/main/resources/static/js/jlw/teachingManagement/add.js
index 2d6c4dfe..10e46981 100644
--- a/web/src/main/resources/static/js/jlw/teachingManagement/add.js
+++ b/web/src/main/resources/static/js/jlw/teachingManagement/add.js
@@ -170,9 +170,11 @@ layui.define(['form', 'laydate', 'table', 'teachingManagementApi', 'table', 'xmS
                      setTimeout(function () {
                          var param = $("#addForm").serializeJson();
                          var list = [];
-                         for (var key in delMap){ //删除的
-                             delMap[key].teacherMergeClassThirdStatus = 2;
-                             list.push(delMap[key]);
+                         if(!$.isEmpty(teacherMergeClassThirdId)){
+                             for (var key in delMap){ //删除的
+                                 delMap[key].teacherMergeClassThirdStatus = 2;
+                                 list.push(delMap[key]);
+                             }
                          }
                          for (var key in tableListMap){  //添加的
                              tableListMap[key].teacherMergeClassThirdStatus = 1;