fix bug

core-api/src/main/java/cn/com/qmth/examcloud/service/core/service/CourseService.java

@@ -64,7 +64,10 @@ public class CourseService {
                 return error;
             }
         });
-        courseRepo.save(list);
+        List<Course> courseList = courseRepo.save(list);
+		for(Course course:courseList){
+			dataSendService.sendCourse(course);
+		}
 		return excelErrors;
 	}