問題描述：

分單時退款金額和退款商品數量的變化

解決方法：

手動修改

• 文件路徑 src/pages/order/index.vue
• 在 template 中修改這段代碼

• 在 computed 中增加 productSelection

 computed: {
    refundProductNum() {
      return this.refundProduct.reduce((total, { refundNum }) => (total + refundNum), 0);
    },
    // 退款商品選擇
    productSelection() {
      // 使用Map優化性能
      const productMap = new Map(this.refundProduct.map(item => [item.id, item]));
      return this.refundSelection.filter(item => productMap.has(item.id)).map(item => productMap.get(item.id));
    }
  }

• 在 methods 中修改 submitRefund、selectionChange，增加 numChange、refundMoneyCompute

    submitRefund() {
      let data = {
        refund_price: this.refundMoney,
        is_split_order: this.isSplitOrder,
      };
      if (this.isSplitOrder) {
        if (!this.refundSelection.length) {
          return this.$Message.warning('請選擇需要退款的商品');
        }
        // 組裝退款商品
        data.cart_ids = this.productSelection.map(({ id, refundNum }) => {
          return { cart_id: id, cart_num: refundNum };
        });
      }
      openRefund(this.selectOrderData.id, data).then(res => {
        this.$Message.success(res.msg);
        this.refundModal = false;
        this.reloading = true;
        this.limitTemp = this.orderData.limit;
        this.pageTemp = this.orderData.page;
        this.orderData.limit *= this.orderData.page;
        this.orderData.page = 1;
        this.getOrderList();
      }).catch(res => {
        this.$Message.error(res.msg);
      });
    },
    // 選擇商品
    selectionChange(selection) {
      this.refundSelection = selection;
      this.refundMoneyCompute();
    },
    // 改變商品數量
    numChange() {
      this.refundMoneyCompute();
    },
    // 計算退款金額
    refundMoneyCompute() {
      let refundMoney = 0;
      for (const item of this.productSelection) {
        try {
          // 使用trycatch處理計算退款金額可能發生的錯誤
          refundMoney = this.$computes.Add(refundMoney, this.$computes.Mul(item.refundNum, item.refundPrice));
        } catch (error) {
          console.error('計算退款金額發生錯誤', error);
          break;
        }
      }
      this.refundMoney = refundMoney;
    }

替換修改

下載附件，解壓、替換對應的文件，重新打包。打包文檔  https://doc.crmeb.com/pro/crmebprov2/2357