update

src/components/pages/addCourse.vue

@@ -4502,7 +4502,7 @@ export default {
             this.$forceUpdate();
             this.timer = setTimeout(() => {
               this.seleteCourseUpdate();
-            }, 5000);
+            }, 3000);
           } else if (index == 2) {
             let _this = this;
             _this