修改实际支付金额

src/views/pay/index.vue

@@ -606,14 +606,14 @@ export default {
       return Object.keys(obj);
     },
     setAmount() {
+      const faceValue = +this.selectedCoupon?.faceValue || 0;
+      const orderAmt = +this.displayInfo?.orderAmt || 0;
       const finalAmt =
         IS_THIRD_PAY(this.payType) || !this.showCoupon
-          ? this.displayInfo?.orderAmt || '0.00'
-          : (this.displayInfo?.orderAmt - this.selectedCoupon?.faceValue || 0).toFixed(2);
+          ? orderAmt || '0.00'
+          : (orderAmt - faceValue || 0).toFixed(2);
       const freeAmount =
-        !IS_THIRD_PAY(this.payType) && this.showCoupon
-          ? this.selectedCoupon?.faceValue || '0.00'
-          : '0.00';
+        !IS_THIRD_PAY(this.payType) && this.showCoupon ? faceValue || '0.00' : '0.00';
       cookies.set('amount', { finalAmt, freeAmount });
     },
     async reissueContract() {