【修复】当无优惠价格时，商品无法显示的问题

Signed-off-by: 杨宇庆 <hiyyq@qq.com>

pages/goods/index.vue

@@ -361,7 +361,7 @@
     // 选择有 promotionPrice 且最小的
     state.settlementSku = state.goodsInfo.skus
       .filter((sku) => sku.stock > 0 && sku.promotionPrice > 0)
-      .reduce((prev, curr) => (prev.promotionPrice < curr.promotionPrice ? prev : curr));
+      .reduce((prev, curr) => (prev.promotionPrice < curr.promotionPrice ? prev : curr), []);
 
     // 设置满减送活动
     if (data.rewardActivity) {

sheep/hooks/useGoods.js

@@ -416,7 +416,7 @@ export function appendSettlementProduct(spus, settlementInfos) {
     // 选择价格最小的 SKU 设置到 SPU 上
     const settlementSku = settlementInfo.skus
       .filter((sku) => sku.promotionPrice > 0)
-      .reduce((prev, curr) => (prev.promotionPrice < curr.promotionPrice ? prev : curr));
+      .reduce((prev, curr) => (prev.promotionPrice < curr.promotionPrice ? prev : curr), []);
     if (settlementSku) {
       spu.promotionType = settlementSku.promotionType;
       spu.promotionPrice = settlementSku.promotionPrice;