C#2.0纯数学方法递归实现货币数字转换中文

测试工程
  static void Main(string[] args)
{

Console.WriteLine("请输入金额");
string inputNum = Console.ReadLine();
while (inputNum != "exit")
{

//货币数字转化类
NumCast nc = new NumCast();

if (nc.IsValidated<string>(inputNum))
{
try
{
string chineseCharacter = nc.ConvertToChinese(inputNum);
Console.WriteLine(chineseCharacter);
}
catch (Exception er)
{
Console.WriteLine(er.Message);
}
}
else
{
Console.WriteLine("不合法的数字或格式");
}

Console.WriteLine("\n请输入金额");
inputNum = Console.ReadLine();

}
Console.ReadLine();
}

1 常量的规定
 /// <summary>
/// 数位
/// </summary>
public enum NumLevel { Cent, Chiao, Yuan, Ten, Hundred, Thousand, TenThousand, hundredMillon, Trillion };

/// <summary>
/// 数位的指数
/// </summary>
private int[] NumLevelExponent = new int[] { -2, -1, 0, 1, 2, 3, 4, 8, 12 };

/// <summary>
/// 数位的中文字符
/// </summary>
private string[] NumLeverChineseSign = new string[] { "分", "角", "元", "拾", "佰", "仟", "万", "亿", "兆" };

/// <summary>
/// 大写字符
/// </summary>
private string[] NumChineseCharacter = new string[] {"零","壹","贰","叁","肆","伍","陆","柒","捌","玖"};

/// <summary>
/// 整(当没有 角分 时)
/// </summary>

private const string EndOfInt = "整";

2：数字合法性验证，采用正则表达式验证
 /// <summary>
/// 正则表达验证数字是否合法
/// </summary>
/// <param name="Num"></param>
/// <returns></returns>
public bool IsValidated<T>(T Num)
{
Regex reg = new Regex(@"^(([0])([1-9]\d{0,23}))(\.\d{1,2})?$");
if (reg.IsMatch(Num.ToString()))
{
return true;

}
return false;
}