如何在c#中进行SWIFT代码和IBAN验证

using System;
using System.Text.RegularExpressions;

public class Program
{
    public static void Main()
    {
        string swiftCode = "ABCDUSXXX";
        string iban = "GB82WEST12345698765432";

        bool isSwiftCodeValid = ValidateSwiftCode(swiftCode);
        bool isIbanValid = ValidateIban(iban);

        Console.WriteLine("Swift Code Validation: " + isSwiftCodeValid);
        Console.WriteLine("IBAN Validation: " + isIbanValid);
    }

    public static bool ValidateSwiftCode(string swiftCode)
    {
        // Swift Code pattern: AAAA - BB - CC - DDD
        string pattern = @"^[A-Z]{4}[A-Z]{2}[A-Z0-9]{2}([A-Z0-9]{3})?$";
        return Regex.IsMatch(swiftCode, pattern);
    }

    public static bool ValidateIban(string iban)
    {
        // IBAN pattern: Country Code (2 letters) + 2-digit checksum + Basic Bank Account Number (BBAN)
        string pattern = @"^[A-Z]{2}\d{2}[A-Z0-9]{1,30}$";
        if (!Regex.IsMatch(iban, pattern))
        {
            return false;
        }

        // Validate checksum
        string countryCode = iban.Substring(0, 2);
        string checksum = iban.Substring(2, 2);
        string bban = iban.Substring(4);

        string reformattedIban = bban + countryCode + checksum;
        long numericIban = long.Parse(Regex.Replace(reformattedIban, "[A-Z]", m => ((int)m.Value[0] - 55).ToString()));

        return numericIban % 97 == 1;
    }
}