fix: 修复询价商品阶梯价格为空{}报错的问题

src/pages/transaction/marketingAbility/merchantCoupon/components/ApplicableGoods/index.tsx

@@ -97,7 +97,7 @@ const ApplicableGoods: React.FC<IProps> = (props) => {
       render: (text) => {
         const unitPrice = normalizeUnitPrice(text);
         const start = unitPrice[0]?.price;
-        const end = unitPrice[unitPrice.length - 1].price;
+        const end = unitPrice[unitPrice.length - 1]?.price;
         return start !== end ? `¥ ${start}~${end}` : `¥ ${start}`;
       },
     },

src/pages/transaction/marketingAbility/merchantCoupon/merchantCouponUnsubmitted/components/ApplicableGoodsFormItem/index.tsx

@@ -71,7 +71,7 @@ const ApplicableGoodsFormItem = (props) => {
       render: (text) => {
         const unitPrice = normalizeUnitPrice(text);
         const start = unitPrice[0]?.price;
-        const end = unitPrice[unitPrice.length - 1].price;
+        const end = unitPrice[unitPrice.length - 1]?.price;
         return start !== end ? `¥ ${start}~${end}` : `¥ ${start}`;
       },
     },

src/pages/transaction/marketingAbility/merchantCoupon/merchantCouponUnsubmitted/components/GoodsDrawer/index.tsx

@@ -2,7 +2,7 @@
  * @Author: XieZhiXiong
  * @Date: 2021-06-24 16:11:55
  * @LastEditors: XieZhiXiong
- * @LastEditTime: 2021-09-08 19:29:00
+ * @LastEditTime: 2021-09-24 14:05:33
  * @Description: 商品选择抽屉
  */
 import React, { useEffect } from 'react';
@@ -181,7 +181,7 @@ const GoodsDrawer: React.FC<IProps> = (props) => {
       render: (text) => {
         const unitPrice = normalizeUnitPrice(text);
         const start = unitPrice[0]?.price;
-        const end = unitPrice[unitPrice.length - 1].price;
+        const end = unitPrice[unitPrice.length - 1]?.price;
         return start !== end ? `¥ ${start}~${end}` : `¥ ${start}`;
       },
     },