Merge branch 'PL/develop-BI' into develop

TEAMModelBI/Controllers/OpenApi/CourseController.cs

@@ -529,7 +529,7 @@ namespace TEAMModelAPI.Controllers
             //处理包含时间排课的课程
             import_schedules_hastime.ForEach(schedule => {
                 Course course = courses.Find(x => x.id.Equals(schedule.courseId));
-                if (string.IsNullOrWhiteSpace(course?.period?.id))
+                if (!string.IsNullOrWhiteSpace(course?.period?.id))
                 {
                     Period period = data.period.Find(p => p.id.Equals(course.period.id));
                     TimeTable timeTable = period?.timetable.Find(x => x.id.Equals(schedule.timeId));