1. 结算接口中计算代金券金额，根据其他金额算先进金额。

task/taskfinal.cpp

@@ -29,7 +29,7 @@ void TaskFinal::packageServerReq()
     QJsonArray coupons = getPosJsonValue(PosProps.Coupons).toArray();
 
     // 储值金、积分、第三方、代金券
-    int codeAmount=0, scoreAmount=0, cashAmount=0, thirdAmount=0;
+    int codeAmount=0, scoreAmount=0, cashAmount=0, couponAmount=0, thirdAmount=0;
     trans["third_pay_type"] = 4;
     foreach(auto pay_v , getPosJsonValue(PosProps.Pay_ids).toArray())
     {
@@ -41,6 +41,7 @@ void TaskFinal::packageServerReq()
             scoreAmount = pay_ob[PosProps.Pay_amount].toInt();
         } else if(type == "20003") {               // 代金券
             coupons.append(pay_ob[PosProps.Coupon_code].toString());
+            couponAmount += pay_ob[PosProps.Pay_amount].toInt();
         } else if(type == "10001" || type == "10004") {
             thirdAmount = pay_ob[PosProps.Pay_amount].toInt();
             trans["third_pay_trans_id"] = pay_ob[PosProps.Pay_transId];
@@ -54,7 +55,7 @@ void TaskFinal::packageServerReq()
     }
     trans[ServerProps(PosProps.Coupons)] = coupons;
 
-    cashAmount = getPosJsonValue(PosProps.PaidAmount).toInt() - codeAmount -scoreAmount - thirdAmount;
+    cashAmount = getPosJsonValue(PosProps.PaidAmount).toInt() - codeAmount -scoreAmount - couponAmount - thirdAmount;
     trans[ServerProps(PosProps.CodeAmount)] = codeAmount;
     trans[ServerProps(PosProps.ScoreAmount)] = scoreAmount;
     trans[ServerProps(PosProps.CashAmount)] = cashAmount;