fix: 进货单显示已选商品数量问题

src/pages/lxMall/purchaseOrder/index.tsx

@@ -417,7 +417,7 @@ const PurchaseOrder: React.FC<PurchaseOrderPropsType> = (props) => {
     for (const item of orderList) {
       for (const orderItem of item.orderList) {
         if (item.checkedList.includes(orderItem.id)) {
-          count += orderItem.count
+          count += Number(orderItem.count)
         }
       }