钱币的大小写转换有做过的吗123 成一百二十三元整

[wangdetian168]

钱币的大小写转换有做过的吗123 成一百二十三元整

[SkyeyGarden]

靠,o分,不说.

[lshfong]

用文本替换

[LixingTie]

一个货币数字转换中文的算法，注意：本文中的算法支持小于1023 (也就是9999亿兆)货币数字转化。
　　货币中文说明： 在说明代码之前，首先让我们回顾一下货币的读法。

　　10020002.23 读为 壹仟零贰万零贰元贰角叁分
　　1020 读为 壹仟零贰拾元整。
　　100000 读为 拾万元整
　　0.13 读为 壹角叁分

　　代码：

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();
}

测试结果如下：

货币转化类（NumCast类）功能介绍

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;
}


3： 获取数位 例如 1000的数位为 NumLevel.Thousand



/// <summary>
/// 获取数字的数位　使用log
/// </summary>
/// <param name="Num"></param>
/// <returns></returns>
private NumLevel GetNumLevel(double Num)
{
double numLevelLength;
NumLevel NLvl = new NumLevel();
if (Num > 0)
{
numLevelLength = Math.Floor(Math.Log10(Num));
for (int i = NumLevelExponent.Length - 1; i >= 0; i--)
{
if (numLevelLength >= NumLevelExponent[i])
{
NLvl = (NumLevel)i;
break;
}
}
}
else
{
NLvl = NumLevel.Yuan;
}
return NLvl;

}

4：判断数字之间是否有跳位，也就是中文中间是否要加零，例如1020 就应该加零。
/// <summary>
/// 是否跳位
/// </summary>
/// <returns></returns>
private bool IsDumpLevel(double Num)
{
if (Num > 0)
{
NumLevel? currentLevel = GetNumLevel(Num);
NumLevel? nextLevel = null;
int numExponent = this.NumLevelExponent[(int)currentLevel];

double postfixNun = Math.Round(Num % (Math.Pow(10, numExponent)),2);
if(postfixNun> 0)
nextLevel = GetNumLevel(postfixNun);
if (currentLevel != null && nextLevel != null)
{
if (currentLevel > nextLevel + 1)
{
return true;
}
}
}
return false;

}

5 把长数字分割为两个较小的数字数组，例如把9999亿兆，分割为9999亿和0兆，

因为计算机不支持过长的数字。
/// <summary>
/// 是否大于兆，如果大于就把字符串分为两部分，
/// 一部分是兆以前的数字
/// 另一部分是兆以后的数字
/// </summary>
/// <param name="Num"></param>
/// <returns></returns>
private bool IsBigThanTillion(string Num)
{
bool isBig = false;
if (Num.IndexOf('.') != -1)
{
//如果大于兆
if (Num.IndexOf('.') > NumLevelExponent[(int)NumLevel.Trillion])
{
isBig = true;
}
}
else
{
//如果大于兆
if (Num.Length > NumLevelExponent[(int)NumLevel.Trillion])
{
isBig = true;
}
}
return isBig;
}

/// <summary>
/// 把数字字符串由‘兆’分开两个
/// </summary>
/// <returns></returns>
private double[] SplitNum(string Num)
{
//兆的开始位
double[] TillionLevelNums = new double[2];
int trillionLevelLength;
if (Num.IndexOf('.') == -1)
trillionLevelLength = Num.Length - NumLevelExponent[(int)NumLevel.Trillion];
else
trillionLevelLength = Num.IndexOf('.') - NumLevelExponent[(int)NumLevel.Trillion];
//兆以上的数字
TillionLevelNums[0] = Convert.ToDouble(Num.Substring(0, trillionLevelLength));
//兆以下的数字
TillionLevelNums[1] = Convert.ToDouble(Num.Substring(trillionLevelLength ));
return TillionLevelNums;
}

[LixingTie]

6 是否以“壹拾”开头，如果是就可以把它变为“拾”
bool isStartOfTen = false;
while (Num >=10)
{
if (Num == 10)
{
isStartOfTen = true;
break;
}
//Num的数位

NumLevel currentLevel = GetNumLevel(Num);

int numExponent = this.NumLevelExponent[(int)currentLevel];
Num = Convert.ToInt32(Math.Floor(Num / Math.Pow(10, numExponent)));
if (currentLevel == NumLevel.Ten && Num == 1)
{
isStartOfTen = true;
break;
}
}
return isStartOfTen;


7 合并大于兆连个数组转化成的货币字符串

/// <summary>
/// 合并分开的数组中文货币字符
/// </summary>
/// <param name="tillionNums"></param>
/// <returns></returns>
private string ContactNumChinese(double[] tillionNums)
{
string uptillionStr = CalculateChineseSign(tillionNums[0], NumLevel.Trillion, true, IsStartOfTen(tillionNums[0]));
string downtrillionStr = CalculateChineseSign(tillionNums[1], null, true,false);
string chineseCharactor = string.Empty;
//分开后的字符是否有跳位
if (GetNumLevel(tillionNums[1] * 10) == NumLevel.Trillion)
{
chineseCharactor = uptillionStr + NumLeverChineseSign[(int)NumLevel.Trillion] + downtrillionStr;
}
else
{
chineseCharactor = uptillionStr + NumLeverChineseSign[(int)NumLevel.Trillion];
if (downtrillionStr != "零元整")
{
chineseCharactor += NumChineseCharacter[0] + downtrillionStr;
}
else
{
chineseCharactor += "元整";
}
}
return chineseCharactor;

}

8：递归计算货币数字的中文
/// <summary>
/// 计算中文字符串
/// </summary>
/// <param name="Num">数字</param>
/// <param name="NL">数位级别 比如1000万的 数位级别为万</param>
/// <param name="IsExceptTen">是否以‘壹拾’开头</param>
/// <returns>中文大写</returns>
public string CalculateChineseSign(double Num, NumLevel? NL ,bool IsDump,bool IsExceptTen)
{
Num = Math.Round(Num, 2);
bool isDump = false;
//Num的数位
NumLevel? currentLevel = GetNumLevel(Num);
int numExponent = this.NumLevelExponent[(int)currentLevel];

string Result = string.Empty;

//整除后的结果
int prefixNum;
//余数 当为小数的时候 分子分母各乘100
double postfixNun ;
if (Num >= 1)
{
prefixNum = Convert.ToInt32(Math.Floor(Num / Math.Pow(10, numExponent)));
postfixNun = Math.Round(Num % (Math.Pow(10, numExponent)), 2);
}
else
{
prefixNum = Convert.ToInt32(Math.Floor(Num*100 / Math.Pow(10, numExponent+2)));
postfixNun = Math.Round(Num * 100 % (Math.Pow(10, numExponent + 2)), 2);
postfixNun *= 0.01;
}

if (prefixNum < 10 )
{
//避免以‘壹拾’开头
if (!(NumChineseCharacter[(int)prefixNum] == NumChineseCharacter[1]
&& currentLevel == NumLevel.Ten && IsExceptTen))
{
Result += NumChineseCharacter[(int)prefixNum];
}
else
{
IsExceptTen = false;
}
//加上单位
if (currentLevel == NumLevel.Yuan )
{
////当为 “元” 位不为零时 加“元”。
if (NL == null)
{
Result += NumLeverChineseSign[(int)currentLevel];
//当小数点后为零时 加 "整"
if (postfixNun == 0)
{
Result += EndOfInt;
}
}
}
else
{
Result += NumLeverChineseSign[(int)currentLevel];
}
//当真正的个位为零时　加上“元”
if (NL == null && postfixNun < 1 && currentLevel > NumLevel.Yuan && postfixNun > 0)
{
Result += NumLeverChineseSign[(int)NumLevel.Yuan];

}


}
else
{
//当 前缀数字未被除尽时， 递归下去
NumLevel? NextNL = null;
if ((int)currentLevel >= (int)(NumLevel.TenThousand))
NextNL = currentLevel;

Result += CalculateChineseSign((double)prefixNum, NextNL, isDump, IsExceptTen);
if ((int)currentLevel >= (int)(NumLevel.TenThousand))
{
Result += NumLeverChineseSign[(int)currentLevel];
}
}

//是否跳位
// 判断是否加零， 比如302 就要给三百 后面加零，变为 三百零二。
if (IsDumpLevel(Num))
{
Result += NumChineseCharacter[0];
isDump = true;

}

//余数是否需要递归
if (postfixNun > 0)
{
Result += CalculateChineseSign(postfixNun, NL, isDump, false);
}
else if (postfixNun == 0 && currentLevel > NumLevel.Yuan )
{
//当数字是以零元结尾的加上 元整 比如1000000一百万元整
if (NL == null)
{
Result += NumLeverChineseSign[(int)NumLevel.Yuan];
Result += EndOfInt;
}
}

return Result;
}


9：外部调用的转换方法。

/// <summary>
/// 外部调用的转换方法
/// </summary>
/// <param name="Num"></param>
/// <returns></returns>

public string ConvertToChinese(string Num)
{

if (!IsValidated<string>(Num))
{
throw new OverflowException("数值格式不正确，请输入小于9999亿兆的数字且最多精确的分的金额！");
}
string chineseCharactor = string.Empty;
if (IsBigThanTillion(Num))
{
double[] tillionNums = SplitNum(Num);
chineseCharactor = ContactNumChinese(tillionNums);
}
else
{
double dNum = Convert.ToDouble(Num);
chineseCharactor = CalculateChineseSign(dNum, null, true, IsStartOfTen(dNum));
}
return chineseCharactor;
}

[wangdetian168]

都太强了阿

[pwqzc]

生铁乃牛人也!

[octverve]

牛，但是太长了。
来一个简单点的（功能不差的^_^）

/// <summary>
/// RMB 的摘要说明
/// </summary>
public class RMB
{
public RMB()
{

}
#region 私有成员
/// <summary>
/// 输入字符串
/// </summary>
private string inputString=null;
/// <summary>
/// 输出字符串
/// </summary>
private string outString=null;
/// <summary>
/// 提示信息
/// </summary>
private string noteMessage=null;
#endregion

#region 公共属性
/// <summary>
/// 输入字符串
/// </summary>
public string InputString
{
get { return inputString; }
set { inputString = value; }
}
/// <summary>
/// 输出字符串
/// </summary>
public string OutString
{
get { return outString; }
set { outString = value; }
}
/// <summary>
/// 提示信息
/// </summary>
public string NoteMessage
{
get { return noteMessage; }
set { noteMessage = value; }
}
#endregion



#region 公共方法
public void ConvertToChineseNum()
{
string numList ="零壹贰叁肆伍陆柒捌玖";
string rmbList ="分角元拾佰仟万拾佰仟亿拾佰仟万";
double number=0;
string tempOutString=null;

try
{
number=double.Parse(this.inputString);
}
catch
{
this.noteMessage="传入参数非数字！";
return;
}

if(number>9999999999999.99)
this.noteMessage="超出范围的人民币值";

//将小数转化为整数字符串
string tempNumberString=Convert.ToInt64(number*100).ToString();

int tempNmberLength=tempNumberString.Length;

int i=0;

while(i<tempNmberLength)
{
int oneNumber=Int32.Parse(tempNumberString.Substring(i,1));

string oneNumberChar=numList.Substring(oneNumber,1);

int m = (tempNmberLength-1)-i;//

string oneNumberUnit=rmbList.Substring(m,1);

if(oneNumberChar!="零")
tempOutString+=oneNumberChar+oneNumberUnit;
else
{

if(oneNumberUnit=="亿"||oneNumberUnit=="万"||oneNumberUnit=="元"||oneNumberUnit=="零")
{
while (tempOutString.EndsWith("零"))
{
tempOutString=tempOutString.Substring(0,tempOutString.Length-1);
}

}
if(oneNumberUnit=="亿"||(oneNumberUnit=="万"&&!tempOutString.EndsWith("亿"))||oneNumberUnit=="元")
{
tempOutString+=oneNumberUnit;
}
else
{
bool tempEnd=tempOutString.EndsWith("亿");
bool zeroEnd=tempOutString.EndsWith("零");
if(tempOutString.Length>1)
{
bool zeroStart = tempOutString.Substring(tempOutString.Length - 2, 2).StartsWith("零");
if (!zeroEnd && (zeroStart || !tempEnd))
tempOutString += oneNumberChar;
}
else
{
if (!zeroEnd && !tempEnd)
tempOutString += oneNumberChar;
}
}
}
i+=1;
}

while (tempOutString.EndsWith("零"))
{
tempOutString=tempOutString.Substring(0,tempOutString.Length-1);
}

while(tempOutString.EndsWith("元"))
{
tempOutString=tempOutString+"整";
}

this.outString=tempOutString;


}
#endregion
}

[octverve]

我回的这个可读性强。

[wdzr_826]

顶楼上