/// <summary>
/// 冲正预处理
/// </summary>
/// <param name="creditCard">银行卡信息</param>
/// <param name="preMsg">上次支付的信息</param>
/// <returns></returns>
public byte[] CancelPay(CreditCard creditCard, byte[] preMsg, string posSerialNo)
{
IPayPreTeatment payPreObj =
PaymentPlatFormFactory.GetPayPreTreatmentFactory().GetPayPreObj(creditCard);
return(payPreObj.CancelPay(preMsg, creditCard, posSerialNo));
}
