优化

src/pages/common/groupbuy/detail.vue

@@ -3,7 +3,7 @@
     <view class='swiper-container'>
       <swiper class='swiper' :interval='1500' :duration='1000' @change='swiperChange'>
         <swiper-item v-for='(item,index) in bannerList' :key='index'>
-          <image :src='item' />
+          <image :src='item||defaultImage' />
         </swiper-item>
       </swiper>
       <view class='indicator'>
@@ -129,7 +129,7 @@
 </template>
 
 <script lang='ts' setup>
-import { assetsUrl } from '@/utils/assets';
+import { assetsUrl, defaultImage } from '@/utils/assets';
 import dayjs from 'dayjs';
 import { formatTimeWithZeroPad, goPath, isLogin } from '@/utils';
 import SkuDialog from '@/components/sku-dialog.vue';