遮罩层问题

src/components/pages/student/addCourse.vue

@@ -8861,6 +8861,11 @@ export default {
 
     },
   },
+  mounted(){
+    this.$nextTick(()=>{
+      this.scrollChange()
+    })
+  },
   beforeDestroy() {
     clearTimeout(this.timer);
     this.timer = null;