清空tid

src/components/pages/classroomObservation/index.vue

@@ -312,6 +312,8 @@ export default {
 							type: "success",
 							message: "删除成功!",
 						});
+						// 清空tid
+						this.tid = "";
 						this.getCourseList().then((_) => {
 							if (!this.tid) return;
 							this.getFileIdId();