//实现将数字货币转换为大写
public class MoneyToString
{
private static readonly String cnNumber = "零壹贰叁肆伍陆柒捌玖";
private static readonly String cnUnit = "分角元拾佰仟万拾佰仟亿拾佰仟兆拾佰仟";
 
private static readonly String[] enSmallNumber = { "", "ONE", "TWO", "THREE", "FOUR", "FIVE", "SIX", "SEVEN", "EIGHT", "NINE", "TEN", "ELEVEN", "TWELVE", "THIRTEEN", "FOURTEEN", "FIFTEEN", "SIXTEEN", "SEVENTEEN", "EIGHTEEN", "NINETEEN" };
private static readonly String[] enLargeNumber = { "TWENTY", "THIRTY", "FORTY", "FIFTY", "SIXTY", "SEVENTY", "EIGHTY", "NINETY" };
private static readonly String[] enUnit = { "", "THOUSAND", "MILLION", "BILLION", "TRILLION" };
 
// 以下是货币金额中文大写转换方法
public static String GetCnString(String MoneyString)
{
   String[] tmpString = MoneyString.Split('.');
   String intString = MoneyString;   // 默认为整数
String decString = "";// 保存小数部分字串
String rmbCapital = "";// 保存中文大写字串
int k;
int j;
int n;
 
if (tmpString.Length > 1)
{
    intString = tmpString[0]; // 取整数部分
    decString = tmpString[1]; // 取小数部分
}
decString += "00";
decString = decString.Substring(0, 2);   // 保留两位小数位
intString += decString;
 
try
{
    k = intString.Length - 1;
    if (k > 0 && k < 18)
    {
        for (int i = 0; i = k ? (int)intString[k] - 48 : (int)intString[i + 1] - 48; // 等效于 if( ){ }else{ }
if (j == 0)
{
    if (k - i == 2 || k - i == 6 || k - i == 10 || k - i == 14)
    {
        rmbCapital += cnUnit[k - i];
    }
    else
    {
        if (n != 0)
        {
rmbCapital += cnNumber[j];
        }
    }
}
else
{
    rmbCapital = rmbCapital + cnNumber[j] + cnUnit[k - i];
}
        }
 
        rmbCapital = rmbCapital.Replace("兆亿万", "兆");
        rmbCapital = rmbCapital.Replace("兆亿", "兆");
        rmbCapital = rmbCapital.Replace("亿万", "亿");
        rmbCapital = rmbCapital.TrimStart('元');
        rmbCapital = rmbCapital.TrimStart('零');
 
        return rmbCapital;
    }
    else
    {
        return "";   // 超出转换范围时，返回零长字串
    }
}
catch
{
    return "";   // 含有非数值字符时，返回零长字串
}
}
 
//以下是实现货币金额英文大写转换的代码
public static String GetEnString(String MoneyString)
{
String[] tmpString = MoneyString.Split('.');
String intString = MoneyString;   // 默认为整数
String decString = "";// 保存小数部分字串
String engCapital = "";// 保存英文大写字串
String strBuff1;
String strBuff2;
String strBuff3;
int curPoint;
int i1;
int i2;
int i3;
int k;
int n;
 
if (tmpString.Length > 1)
{
    intString = tmpString[0]; // 取整数部分
    decString = tmpString[1]; // 取小数部分
}
decString += "00";
decString = decString.Substring(0, 2);   // 保留两位小数位
 
try
{      // 以下处理整数部分  
    curPoint = intString.Length - 1; if (curPoint >= 0 && curPoint < 15)
    {
        k = 0;
        while (curPoint >= 0)
        {
strBuff1 = ""; strBuff2 = ""; strBuff3 = ""; if (curPoint >= 2)
{
    n = int.Parse(intString.Substring(curPoint - 2, 3)); if (n != 0)
    {
        i1 = n / 100;           // 取佰位数值
        i2 = (n - i1 * 100) / 10;   // 取拾位数值
        i3 = n - i1 * 100 - i2 * 10;  // 取个位数值
        if (i1 != 0) { strBuff1 = enSmallNumber[i1] + " HUNDRED "; } if (i2 != 0) { if (i2 == 1) { strBuff2 = enSmallNumber[i2 * 10 + i3] + " "; } else { strBuff2 = enLargeNumber[i2 - 2] + " "; if (i3 != 0) { strBuff3 = enSmallNumber[i3] + " "; } } } else { if (i3 != 0) { strBuff3 = enSmallNumber[i3] + " "; } } engCapital = strBuff1 + strBuff2 + strBuff3 + enUnit[k] + " " + engCapital;
    }
}
else
{
    n = int.Parse(intString.Substring(0, curPoint + 1)); if (n != 0)
    {
        i2 = n / 10;      // 取拾位数值         
        i3 = n - i2 * 10;   // 取个位数值        
        if (i2 != 0) { if (i2 == 1) { strBuff2 = enSmallNumber[i2 * 10 + i3] + " "; } else { strBuff2 = enLargeNumber[i2 - 2] + " "; if (i3 != 0) { strBuff3 = enSmallNumber[i3] + " "; } } } else { if (i3 != 0) { strBuff3 = enSmallNumber[i3] + " "; } } engCapital = strBuff2 + strBuff3 + enUnit[k] + " " + engCapital;
    }
} ++k; curPoint -= 3;
        } engCapital = engCapital.TrimEnd();
    }
    // 以下处理小数部分        
    strBuff2 = ""; strBuff3 = ""; n = int.Parse(decString); if (n != 0)
    {
        i2 = n / 10;      // 取拾位数值     
        i3 = n - i2 * 10;   // 取个位数值   
        if (i2 != 0) { if (i2 == 1) { strBuff2 = enSmallNumber[i2 * 10 + i3] + " "; } else { strBuff2 = enLargeNumber[i2 - 2] + " "; if (i3 != 0) { strBuff3 = enSmallNumber[i3] + " "; } } } else { if (i3 != 0) { strBuff3 = enSmallNumber[i3] + " "; } }// 将小数字串追加到整数字串后
        if (engCapital.Length > 0)
        {
engCapital = engCapital + " AND CENTS " + strBuff2 + strBuff3;   // 有整数部分时
        }
        else
        {
engCapital = "CENTS " + strBuff2 + strBuff3;   // 只有小数部分时
        }
    } engCapital = engCapital.TrimEnd(); return engCapital;
}
catch
{
    return "";   // 含非数字字符时，返回零长字串      
}
        }
    }