fix

 <!--
  * @Date: 2024-10-18 12:06:09
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2024-12-04 11:42:11
+ * @LastEditTime: 2024-12-05 10:19:51
  * @FilePath: /hager/src/views/solution/case.vue
  * @Description: 文件描述
 -->
@@ -177,7 +177,7 @@ export default {
     }
 
     this.$nextTick(() => {
-      this.$refs.myProductSwiper.$swiper?.on('breakpoint', (swiper) => {
+      this.$refs.myProductSwiper?.$swiper?.on('breakpoint', (swiper) => {
         // breakpoint时 显示的条数
         this.productSlidesPerView = swiper.slidesPerView
       });