我怎样才能把一个整数转换成它的口头expression？

是否有一个库或一个类/函数，我可以用来将一个整数转换成它的口头表示？

示例input：

4,567,788`

示例输出：

四百五十六万七千八百八十八

Answer 1

如果您使用在下面的代码： 将数字转换为单词C＃，并且您需要十进制数字，请执行以下操作：

public string DecimalToWords(decimal number) { if (number == 0) return "zero"; if (number < 0) return "minus " + DecimalToWords(Math.Abs(number)); string words = ""; int intPortion = (int)number; decimal fraction = (number - intPortion)*100; int decPortion = (int)fraction; words = NumericToWords(intPortion); if (decPortion > 0) { words += " and "; words += NumericToWords(decPortion); } return words; } 

Answer 2

目前最好的，最强大的，这个库肯定是人性化 。 它是开源的，可作为nuget使用：

 Console.WriteLine(4567788.ToWords()); // => four million five hundred and sixty-seven thousand seven hundred and eighty-eight 

它也有各种各样的工具来解决每个应用程序对string ， enum ， DateTime ， TimeSpan等等的小问题，并支持许多不同的语言。

 Console.WriteLine(4567788.ToOrdinalWords().Underscore().Hyphenate().ApplyCase(LetterCasing.AllCaps)); // => FOUR-MILLION-FIVE-HUNDRED-AND-SIXTY-SEVEN-THOUSAND-SEVEN-HUNDRED-AND-EIGHTY-EIGHTH 

Answer 3

完全recursion版本：

 private static string[] ones = { "zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen", }; private static string[] tens = { "zero", "ten", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety" }; private static string[] thous = { "hundred", "thousand", "million", "billion", "trillion", "quadrillion" }; public static string ToWords(decimal number) { if (number < 0) return "negative " + ToWords(Math.Abs(number)); int intPortion = (int)number; int decPortion = (int)((number - intPortion) * (decimal) 100); return string.Format("{0} dollars and {1} cents", ToWords(intPortion), ToWords(decPortion)); } private static string ToWords(int number, string appendScale = "") { string numString = ""; if (number < 100) { if (number < 20) numString = ones[number]; else { numString = tens[number / 10]; if ((number % 10) > 0) numString += "-" + ones[number % 10]; } } else { int pow = 0; string powStr = ""; if (number < 1000) // number is between 100 and 1000 { pow = 100; powStr = thous[0]; } else // find the scale of the number { int log = (int)Math.Log(number, 1000); pow = (int)Math.Pow(1000, log); powStr = thous[log]; } numString = string.Format("{0} {1}", ToWords(number / pow, powStr), ToWords(number % pow)).Trim(); } return string.Format("{0} {1}", numString, appendScale).Trim(); } 

目前的工作达到（小规模）四倍。 额外的支持（对于更大的数字，或长期的规模 ）可以简单地通过改变这个variables来添加。

也许，不必要的复杂（几百个bug的特殊情况我有点），因为修改非recursion版本也相当简单。

Answer 4

 Imports System.Text Public Class NumberWriter Public Shared Function Parse(ByVal Number As String) As String If Not AreNumbers(Number) Then Return "" Dim TempQueue As New Queue(Of String) For Each ItemA As Char In Number.Replace(",", "").Reverse TempQueue.Enqueue(ItemA) Next Dim Blocks As New List(Of String) Dim BlockEmpty As New List(Of Boolean) Do Dim TempBlock As New StringBuilder(3) TempBlock.Append(TempQueue.Dequeue) If TempQueue.Count > 0 Then TempBlock.Append(TempQueue.Dequeue) If TempQueue.Count > 0 Then TempBlock.Append(TempQueue.Dequeue) End If End If Blocks.Add(StrReverse(TempBlock.ToString)) BlockEmpty.Add(TempBlock.ToString = "000") If TempQueue.Count < 1 Then Exit Do Loop Dim ResultStack As New Stack(Of String) For int1 As Integer = 0 To Blocks.Count - 1 ResultStack.Push(ReadBlock(Blocks(int1)) & If(Not int1 = 0, If(Not BlockEmpty(int1), " " & CapitalizeWord(GetPlaceValueSet(int1)) & If(BlockEmpty(int1 - 1), "", ", "), ""), "")) Next Dim Result1 As String = "" Do Until ResultStack.Count < 1 Result1 &= ResultStack.Pop Loop Return RemoveGrammarErrors(Result1) End Function Private Shared Function RemoveGrammarErrors(ByVal Str As String) As String Dim tstr As String = Str tstr.Replace(" ", " ") tstr.Replace(" , ", ", ") Return tstr End Function Private Shared Function AreNumbers(ByVal Str1 As String) As Boolean Dim Numbers() As String = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", ","} For Each ItemA As Char In Str1 Dim IsN As Boolean = False For Each ItemB As String In Numbers If ItemA = ItemB Then IsN = True Next If Not IsN Then Return False End If Next Return True End Function Private Shared Function ReadBlock(ByVal Block As String) Select Case Block.Length Case 1 Return ReadSingleDigit(Block) Case 2 Return ReadTwoDigits(Block) Case 3 Return ReadThreeDigits(Block) Case Else Throw New Exception End Select End Function Private Shared Function ReadThreeDigits(ByVal Digits As String) If Digits.Length > 3 Then Throw New ArgumentException("There are too many digits.") Dim Result As String = "" If Not Digits(0) = "0" Then Result &= ReadSingleDigit(Digits(0)) & " Hundred " End If Result &= ReadTwoDigits(Digits.Substring(1)) Return Result End Function Private Shared Function ReadTwoDigits(ByVal Digits As String) If Digits.Length > 2 Then Throw New ArgumentException("There are too many digits.") Select Case Digits(0) Case "0" Return ReadSingleDigit(Digits(1)) Case "1" Return ReadTeenNumber(Digits) Case Else Return ReadFirstInNumberPair(Digits(0)) & If(Digits(1) = "0", "", "-" & ReadSingleDigit(Digits(1))) End Select End Function Private Shared Function ReadSingleDigit(ByVal Digit As String) As String If Not Digit.Length = 1 Then Throw New ArgumentException("There must be only one digit and it must be more than zero.") Select Case Digit Case "0" Return "" Case "1" Return "One" Case "2" Return "Two" Case "3" Return "Three" Case "4" Return "Four" Case "5" Return "Five" Case "6" Return "Six" Case "7" Return "Seven" Case "8" Return "Eight" Case "9" Return "Nine" Case Else Throw New Exception() End Select End Function Private Shared Function ReadTeenNumber(ByVal Num As String) As String Select Case Num Case "11" Return "Eleven" Case "12" Return "Twelve" Case "13" Return "Thirteen" Case "14" Return "Fourteen" Case "15" Return "Fifteen" Case "16" Return "Sixteen" Case "17" Return "Seventeen" Case "18" Return "Eighteen" Case "19" Return "Nineteen" Case Else Throw New Exception() End Select End Function Private Shared Function ReadFirstInNumberPair(ByVal Num As String) As String If Not (Num > 1 OrElse Num < 10) Then Throw New ArgumentException("Number must be more than 1 and less than 10") Select Case Num Case "2" Return "Twenty" Case "3" Return "Thirty" Case "4" Return "Fourty" Case "5" Return "Fifty" Case "6" Return "Sixty" Case "7" Return "Seventy" Case "8" Return "Eighty" Case "9" Return "Ninety" Case Else Throw New Exception() End Select End Function Private Shared Function CapitalizeWord(ByVal Word As String) As String Return Word.Substring(0, 1).ToUpper & Word.Substring(1) End Function Private Shared Function GetPlaceValueSet(ByVal Num As Byte) As String Select Case Num Case 0 Return "" 'Hundreds Case 1 Return "Thousand" Case 2 Return "Million" Case 3 Return "Billion" Case 4 Return "Trillion" Case 5 Return "Quadrillion" Case 6 Return "Quintillion" Case 7 Return "Sextillion" Case 8 Return "Septillion" Case 9 Return "Octillion" Case 10 Return "Nonillion" Case 11 Return "octillion" Case 12 Return "nonillion" Case 13 Return "decillion" Case 14 Return "undecillion" Case 15 Return "dodecillion," Case 16 Return "tredecillion" Case 17 Return "quattuordecillion" Case 18 Return "quindecillion" Case 19 Return "sexdecillion" Case 20 Return "septendecillion" Case 21 Return "octodecillion" Case 22 Return "novemdecillion" Case 23 Return "vigintillion" Case 24 Return "unvigintillion" Case 25 Return "dovigintillion" Case 26 Return "trevigintillion" Case 27 Return "quattuorvigintillion" Case 28 Return "quinvigintillion" Case 29 Return "sexvigintillion" Case 30 Return "septenvigintillion" Case 31 Return "octovigintillion" Case 32 Return "novemvigintillion" Case 33 Return "trigintillion" Case 34 Return "untrigintillion" Case 35 Return "dotrigintillion" Case 36 Return "tretrigintillion" Case 37 Return "quattuortrigintillion" Case 38 Return "quintrigintillion" Case 39 Return "sextrigintillion" Case 40 Return "septentrigintillion" Case 41 Return "octotrigintillion" Case Else Throw New Exception End Select End Function End Class 

对不起，它在VB.NET中，但它完全工作。 这是一种方式。 数字口头。 我相信处理长达123个字符的数字。

Answer 5

这是西class牙语版本：

  public static string numeroALetras(int number) { if (number == 0) return "cero"; if (number < 0) return "menos " + numeroALetras(Math.Abs(number)); string words = ""; if ((number / 1000000) > 0) { words += numeroALetras(number / 1000000) + " millón "; number %= 1000000; } if ((number / 1000) > 0) { words += (number / 1000) == 1? "mil ": numeroALetras(number / 1000) + " mil "; number %= 1000; } if ((number / 100) == 1) { if (number == 100) words += "cien"; else words += (number / 100)> 1? numeroALetras(number / 100) + " ciento ":"ciento "; number %= 100; } if ((number / 100) > 1) { var hundredMap = new[] {"","", "dosc", "tresc", "cuatroc", "quin", "seisc", "sietec", "ochoc", "novec" }; if (number > 199) words += hundredMap[number/100] + "ientos "; else { words += numeroALetras(number / 100) + " ientos "; } number %= 100; } if (number > 0) { if (words != "") words += " "; var unitsMap = new[] { "cero", "uno", "dos", "tres", "cuatro", "cinco", "seis", "siete", "ocho", "nueve", "diez", "once", "doce", "trece", "catorce", "quince", "dieciseis", "diecisiete", "dieciocho", "diecinueve", "veinte" }; var tensMap = new[] { "cero", "diez", "veinti", "treinta", "cuarenta", "cincuenta", "sesenta", "setenta", "ochenta", "noventa" }; if (number < 21) words += unitsMap[number]; else { words += tensMap[number / 10]; if ((number % 10) > 0) words += ((number % 10)>2?" y ": "") + unitsMap[number % 10]; } } return words; } 

Answer 6

这是我的解决scheme，希望它能帮助你

 namespace ConsoleApplication3 { class Program { static void Main(string[] args) { string s = Console.ReadLine(); ConvertMyword(int.Parse(s)); Console.Read(); } static void ConvertMyword(int number) { int flag = 0; int lflag = 0; string words = String.Empty; string[] places = { "ones", "ten", "hundred", "thousand", "ten thousand", "lacs","tenlacs","crore","tencrore" }; string rawnumber = number.ToString(); char[] a = rawnumber.ToCharArray(); Array.Reverse(a); for (int i = a.Length - 1; i >= 0; i--) { if (i % 2 == 0 && i > 2) { if (int.Parse(a[i].ToString()) > 1) { if (int.Parse(a[i - 1].ToString()) == 0) { words = words + getNumberStringty(int.Parse(a[i].ToString())) + " " + places[i - 1] + " "; } else { words = words + getNumberStringty(int.Parse(a[i].ToString())) + " "; } } else if (int.Parse(a[i].ToString()) == 1) { if (int.Parse(a[i - 1].ToString())== 0) { words = words +"Ten" + " "; } else { words = words + getNumberStringteen(int.Parse(a[i - 1].ToString())) + " "; } flag = 1; } } else { if (i == 1 || i == 0) { if (int.Parse(a[i].ToString()) > 1) { words = words + getNumberStringty(int.Parse(a[i].ToString())) + " " + getNumberString(int.Parse(a[0].ToString())) + " "; break; } else if (int.Parse(a[i].ToString()) == 1) { if (int.Parse(a[i - 1].ToString()) == 0) { words = words + "Ten" + " "; } else { words = words + getNumberStringteen(int.Parse(a[i - 1].ToString())) + " "; } break; } else if (int.Parse(a[i - 1].ToString()) != 0) { words = words + getNumberString(int.Parse(a[i - 1].ToString())) + " "; break; } else { break; } } else { if (flag == 0) { for(int l=i;l>=0;l--) { if (int.Parse(a[l].ToString())!=0) { lflag = 1; } } if (lflag == 1 && int.Parse(a[i].ToString())!=0) { words = words + getNumberString(int.Parse(a[i].ToString())) + " " + places[i] + " "; lflag = 0; } else if(lflag == 0) { // words = words + getNumberString(int.Parse(a[i].ToString())) + " " + places[i] + " "; lflag = 0; break; } } else { words = words + " " + places[i] + " "; flag = 0; } } } } Console.WriteLine(words); } static string getNumberString(int num) { string Word = String.Empty; switch (num) { case 1: Word = "one"; break; case 2: Word = "two"; break; case 3: Word = "three"; break; case 4: Word = "four"; break; case 5: Word = "five"; break; case 6: Word = "six"; break; case 7: Word = "seven"; break; case 8: Word = "eight"; break; case 9: Word = "nine"; break; } return Word; } static string getNumberStringty(int num) { string Word = String.Empty; switch (num) { case 2: Word = "twenty"; break; case 3: Word = "thirty"; break; case 4: Word = "fourty"; break; case 5: Word = "fifty"; break; case 6: Word = "sixty"; break; case 7: Word = "seventy"; break; case 8: Word = "eighty"; break; case 9: Word = "ninty"; break; } return Word; } static string getNumberStringteen(int num) { string Word = String.Empty; switch (num) { case 1: Word = "eleven"; break; case 2: Word = "tewlve"; break; case 3: Word = "thirteen"; break; case 4: Word = "fourteen"; break; case 5: Word = "fifteen"; break; case 6: Word = "sixteen"; break; case 7: Word = "seventeen"; break; case 8: Word = "eighteen"; break; case 9: Word = "ninteen"; break; } return Word; } } } 

Answer 7

http://www.exchangecore.com/blog/convert-number-words-c-sharp-console-application/有一些C＃脚本，看起来处理非常大的数字和非常小的小数。;

 using System; using System.Collections.Generic; using System.Text; namespace NumWords { class Program { // PROGRAM HANDLES NEGATIVE AND POSITIVE DOUBLES static String NumWordsWrapper(double n) { string words = ""; double intPart; double decPart = 0; if (n == 0) return "zero"; try { string[] splitter = n.ToString().Split('.'); intPart = double.Parse(splitter[0]); decPart = double.Parse(splitter[1]); } catch { intPart = n; } words = NumWords(intPart); if (decPart > 0) { if (words != "") words += " and "; int counter = decPart.ToString().Length; switch (counter) { case 1: words += NumWords(decPart) + " tenths"; break; case 2: words += NumWords(decPart) + " hundredths"; break; case 3: words += NumWords(decPart) + " thousandths"; break; case 4: words += NumWords(decPart) + " ten-thousandths"; break; case 5: words += NumWords(decPart) + " hundred-thousandths"; break; case 6: words += NumWords(decPart) + " millionths"; break; case 7: words += NumWords(decPart) + " ten-millionths"; break; } } return words; } static String NumWords(double n) //converts double to words { string[] numbersArr = new string[] { "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen" }; string[] tensArr = new string[] { "twenty", "thirty", "fourty", "fifty", "sixty", "seventy", "eighty", "ninty" }; string[] suffixesArr = new string[] { "thousand", "million", "billion", "trillion", "quadrillion", "quintillion", "sextillion", "septillion", "octillion", "nonillion", "decillion", "undecillion", "duodecillion", "tredecillion", "Quattuordecillion", "Quindecillion", "Sexdecillion", "Septdecillion", "Octodecillion", "Novemdecillion", "Vigintillion" }; string words = ""; bool tens = false; if (n < 0) { words += "negative "; n *= -1; } int power = (suffixesArr.Length + 1) * 3; while (power > 3) { double pow = Math.Pow(10, power); if (n >= pow) { if (n % pow > 0) { words += NumWords(Math.Floor(n / pow)) + " " + suffixesArr[(power / 3) - 1] + ", "; } else if (n % pow == 0) { words += NumWords(Math.Floor(n / pow)) + " " + suffixesArr[(power / 3) - 1]; } n %= pow; } power -= 3; } if (n >= 1000) { if (n % 1000 > 0) words += NumWords(Math.Floor(n / 1000)) + " thousand, "; else words += NumWords(Math.Floor(n / 1000)) + " thousand"; n %= 1000; } if (0 <= n && n <= 999) { if ((int)n / 100 > 0) { words += NumWords(Math.Floor(n / 100)) + " hundred"; n %= 100; } if ((int)n / 10 > 1) { if (words != "") words += " "; words += tensArr[(int)n / 10 - 2]; tens = true; n %= 10; } if (n < 20 && n > 0) { if (words != "" && tens == false) words += " "; words += (tens ? "-" + numbersArr[(int)n - 1] : numbersArr[(int)n - 1]); n -= Math.Floor(n); } } return words; } static void Main(string[] args) { Console.Write("Enter a number to convert to words: "); Double n = Double.Parse(Console.ReadLine()); Console.WriteLine("{0}", NumWordsWrapper(n)); } } } 

编辑：从博客文章中带来的代码

Answer 8

如果有人想要一个JavaScript版本

 Number.prototype.numberToWords = function () { var unitsMap = ["zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen"]; var tensMap = ["zero", "ten", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety"]; var num = this.valueOf(); if (Math.round(num == 0)) { return "zero"; } if (num < 0) { var positivenum = Math.abs(num); return "minus " + Number(positivenum).numberToWords(); } var words = ""; if (Math.floor(num / 1000000) > 0) { words += Math.floor(num / 1000000).numberToWords() + " million "; num = Math.floor(num % 1000000); } if (Math.floor(num / 1000) > 0) { words += Math.floor(num / 1000).numberToWords() + " thousand "; num = Math.floor(num % 1000); } if (Math.floor(num / 100) > 0) { words += Math.floor(num / 100).numberToWords() + " hundred "; num = Math.floor(num % 100); } if (Math.floor(num > 0)) { if (words != "") { words += "and "; } if (num < 20) { words += unitsMap[num]; } else { words += tensMap[Math.floor(num / 10)]; if ((num % 10) > 0) { words += "-" + unitsMap[Math.round(num % 10)]; } } } return words.trim(); } 

Answer 9

我的任务是创build一个使用C＃将数字转换为单词的WEB API。

在48小时内可以是整数或小数点。

该调用将来自前端应用程序使用Ajax Post方法，并将转换的结果返回到网页中。

我已经在GitHub上公开分享了这个项目： https : //github.com/marvinglennlacuna/NumbersToWordsConverter.Api

通过以下技术实施：

1. MVC结构化
2. API控制器
3. 服务
4. 模型
5. error handling
6. 使用MSTest进行unit testing
7. 代码覆盖率 – 98％
8. jQuery的

还有关于以下内容的技术文档：

1. 目的
2. 先决条件
3. function要求
4. 过程图和输出

**网页结果（US-001）**

US-001通过网页处理将数字转换成单词

US-001通过网页输出将数字转换成单词

邮递员结果（US-002）

US-002 – 通过邮差过程将数字转换成单词

US-002 – 通过邮递员输出将数字转换成单词

我认为这是值得分享一个工作解决scheme的情况下，你需要它在面试/代码testing/学校或只有乐趣的参考。

干杯，马文

Answer 10

这个类完美地转换你的浮点数或double（直到2精度）。 只需复制并粘贴到IDE中，然后查看结果。

 class ConversionClass { private static Dictionary<int, string> InitialNumbers = new Dictionary<int, string>(); private static Dictionary<int, string> MultipleOfTen = new Dictionary<int, string>(); private static Dictionary<int, string> MultipleOfHundered = new Dictionary<int, string>(); private static void InitializeStatic() { //InitialNumbers.Add(0, "zero"); InitialNumbers.Add(1, "one"); InitialNumbers.Add(2, "two"); InitialNumbers.Add(3, "three"); InitialNumbers.Add(4, "four"); InitialNumbers.Add(5, "five"); InitialNumbers.Add(6, "six"); InitialNumbers.Add(7, "seven"); InitialNumbers.Add(8, "eight"); InitialNumbers.Add(9, "nine"); InitialNumbers.Add(10, "ten"); InitialNumbers.Add(11, "eleven"); InitialNumbers.Add(12, "tweleve"); InitialNumbers.Add(13, "thirteen"); InitialNumbers.Add(14, "fourteen"); InitialNumbers.Add(15, "fifteen"); InitialNumbers.Add(16, "sixteen"); InitialNumbers.Add(17, "seventeen"); InitialNumbers.Add(18, "eighteen"); InitialNumbers.Add(19, "nineteen"); MultipleOfTen.Add(1, "ten"); MultipleOfTen.Add(2, "twenty"); MultipleOfTen.Add(3, "thirty"); MultipleOfTen.Add(4, "fourty"); MultipleOfTen.Add(5, "fifty"); MultipleOfTen.Add(6, "sixty"); MultipleOfTen.Add(7, "seventy"); MultipleOfTen.Add(8, "eighty"); MultipleOfTen.Add(9, "ninety"); MultipleOfHundered.Add(2, "hundred"); // 100 MultipleOfHundered.Add(3, "thousand"); // 1 000 MultipleOfHundered.Add(4, "thousand"); // 10 000 MultipleOfHundered.Add(5, "thousand"); // 100 000 MultipleOfHundered.Add(6, "million"); // 1 000 000 MultipleOfHundered.Add(7, "million"); // 100 000 000 MultipleOfHundered.Add(8, "million"); // 1 000 000 000 MultipleOfHundered.Add(9, "billion"); // 1 000 000 000 000 } public static void Main() { InitializeStatic(); Console.WriteLine("Enter number :"); var userInput = Console.ReadLine(); double userValue ; if (double.TryParse(userInput, out userValue)) // userValue = 193524019.50 { int decimalPortion = (int)userValue; //var fractionPortion = Math.Ceiling(((userValue < 1.0) ? userValue : (userValue % Math.Floor(userValue))) * 100); int fractionPortion = (int)(userValue * 100) - ((int)userValue * 100); int digit; int power; StringBuilder numberInText = new StringBuilder(); while (decimalPortion > 0) { GetDigitAndPower(decimalPortion, out digit, out power); numberInText.Append(ConvertToText(ref decimalPortion, ref digit, ref power)); if (decimalPortion > 0) { decimalPortion = GetReminder(decimalPortion, digit, power); } } numberInText.Append(" point "); while (fractionPortion > 0) { GetDigitAndPower(fractionPortion, out digit, out power); numberInText.Append(ConvertToText(ref fractionPortion, ref digit, ref power)); if (fractionPortion > 0) { fractionPortion = GetReminder(fractionPortion, digit, power); } } Console.WriteLine(numberInText.ToString()); } Console.ReadKey(); } private static int GetReminder(int orgValue, int digit, int power) { int returningValue = orgValue - (digit * (int)Math.Pow(10, power)); return returningValue; } private static void GetDigitAndPower(int originalValue, out int digit, out int power) { for (power = 0, digit = 0; power < 10; power++) { var divisionFactor = (int)Math.Pow(10, power); int operationalValue = (originalValue / divisionFactor); if (operationalValue <= 0) { power = power - 1; digit = (int)(originalValue / Math.Pow(10, power)); break; } } } private static string ConvertToText(ref int orgValue, ref int digit, ref int power) { string numberToText = string.Empty; if (power < 2) { if (InitialNumbers.ContainsKey(orgValue)) { //This is for number 1 to 19 numberToText = InitialNumbers[orgValue]; orgValue = 0; } else if (MultipleOfTen.ContainsKey(digit)) { //This is for multiple of 10 (20,30,..90) numberToText = MultipleOfTen[digit]; } } else { if (power < 4) { numberToText = string.Format("{0} {1}", InitialNumbers[digit], MultipleOfHundered[power]); } else { StringBuilder sb = new StringBuilder(); int multiplicationFactor = power / 3; int innerOrgValue = (int) (orgValue / Math.Pow(10, (multiplicationFactor * 3))); digit = innerOrgValue; var multiple = MultipleOfHundered[power]; power = power - ((int)Math.Ceiling(Math.Log10(innerOrgValue)) - 1); int innerPower = 0; int innerDigit = 0; while (innerOrgValue > 0) { GetDigitAndPower(innerOrgValue, out innerDigit, out innerPower); var text = ConvertToText(ref innerOrgValue, ref innerDigit, ref innerPower); sb.Append(text); sb.Append(" "); if (innerOrgValue > 0) { innerOrgValue = GetReminder(innerOrgValue, innerDigit, innerPower); } } sb.Append(multiple); numberToText = sb.ToString(); } } return numberToText + " "; } } 

Answer 11

虽然这是一个老问题，但我已经用更详细的方法实现了这个function

 public static class NumberToWord { private static readonly Dictionary<long, string> MyDictionary = new Dictionary<long, string>(); static NumberToWord() { MyDictionary.Add(1000000000000000, "quadrillion"); MyDictionary.Add(1000000000000, "trillion"); MyDictionary.Add(1000000000, "billion"); MyDictionary.Add(1000000, "million"); MyDictionary.Add(1000, "thousand"); MyDictionary.Add(100, "hundread"); MyDictionary.Add(90, "ninety"); MyDictionary.Add(80, "eighty"); MyDictionary.Add(70, "seventy"); MyDictionary.Add(60, "sixty"); MyDictionary.Add(50, "fifty"); MyDictionary.Add(40, "fourty"); MyDictionary.Add(30, "thirty"); MyDictionary.Add(20, "twenty"); MyDictionary.Add(19, "nineteen"); MyDictionary.Add(18, "eighteen"); MyDictionary.Add(17, "seventeen"); MyDictionary.Add(16, "sixteen"); MyDictionary.Add(15, "fifteen"); MyDictionary.Add(14, "fourteen"); MyDictionary.Add(13, "thirteen"); MyDictionary.Add(12, "twelve"); MyDictionary.Add(11, "eleven"); MyDictionary.Add(10, "ten"); MyDictionary.Add(9, "nine"); MyDictionary.Add(8, "eight"); MyDictionary.Add(7, "seven"); MyDictionary.Add(6, "six"); MyDictionary.Add(5, "five"); MyDictionary.Add(4, "four"); MyDictionary.Add(3, "three"); MyDictionary.Add(2, "two"); MyDictionary.Add(1, "one"); MyDictionary.Add(0, "zero"); } /// <summary> /// To the verbal. /// </summary> /// <param name="value">The value.</param> /// <returns></returns> public static string ToVerbal(this int value) { return ToVerbal((long) value); } /// <summary> /// To the verbal. /// </summary> /// <param name="value">The value.</param> /// <returns></returns> public static string ToVerbal(this long value) { if (value == 0) return MyDictionary[value]; if (value < 0) return $" negative {ToVerbal(Math.Abs(value))}"; var builder = new StringBuilder(); for (var i = 1000000000000000; i >= 1000; i = i/1000) value = ConstructWord(value, builder, i); value = ConstructWord(value, builder, 100); for (var i = 90; i >= 20; i = i - 10) value = ConstructWordForTwoDigit(value, builder, i); if (MyDictionary.ContainsKey(value)) builder.AppendFormat("{0}" + MyDictionary[value], builder.Length > 0 ? " " : string.Empty); return builder.ToString(); } private static long ConstructWord(long value, StringBuilder builder, long key) { if (value >= key) { var unit = (int) (value/key); value -= unit*key; builder.AppendFormat(" {0} {1} " + MyDictionary[key], builder.Length > 0 ? ", " : string.Empty, ToVerbal(unit)); } return value; } private static long ConstructWordForTwoDigit(long value, StringBuilder builder, long key) { if (value >= key) { value -= key; builder.AppendFormat(" {0} " + MyDictionary[key], builder.Length > 0 ? " " : string.Empty); } return value; } } 

仅供参考：我有用户string插值，仅在4.6.1中可用

Answer 12

解决scheme占用较less的代码。

最重要的部分是只有几条线：

 static Func<long, string> remainder = t => t > 0 ? " " + ToEN(t) : ""; public static string ToEN(this long val, double d = 20, long th = 20) { switch ((long)d) { case 20: return val >= d ? ToEN(val, 1e2) : en[val]; case 100: return val >= d ? ToEN(val, 1e3, 100) : en[val / 10 * 10] + remainder(val % 10); default: return val >= d ? ToEN(val, d * 1e3,(long)d) : ToEN(val / th) + " " + en[th] + remainder(val % th); } } 

完整的代码在这里https://dotnetfiddle.net/wjr4hF

Answer 13

以下C＃控制台应用程序代码将接受最多2位小数的货币值，并以英文打印。 你可以使用它作为参考来实现你的结果。

  namespace ConsoleApplication2 { using System; using System.Collections.Generic; using System.Linq; using System.Text.RegularExpressions; class Program { static void Main(string[] args) { bool repeat = true; while (repeat) { string inputMonetaryValueInNumberic = string.Empty; string centPart = string.Empty; string dollarPart = string.Empty; Console.Write("\nEnter the monetary value : "); inputMonetaryValueInNumberic = Console.ReadLine(); inputMonetaryValueInNumberic = inputMonetaryValueInNumberic.TrimStart('0'); if (ValidateInput(inputMonetaryValueInNumberic)) { if (inputMonetaryValueInNumberic.Contains('.')) { centPart = ProcessCents(inputMonetaryValueInNumberic.Substring(inputMonetaryValueInNumberic.IndexOf(".") + 1)); dollarPart = ProcessDollar(inputMonetaryValueInNumberic.Substring(0, inputMonetaryValueInNumberic.IndexOf("."))); } else { dollarPart = ProcessDollar(inputMonetaryValueInNumberic); } centPart = string.IsNullOrWhiteSpace(centPart) ? string.Empty : " and " + centPart; Console.WriteLine(string.Format("\n\n{0}{1}", dollarPart, centPart)); } else { Console.WriteLine("Invalid Input.."); } Console.WriteLine("\n\nPress any key to continue or Escape of close : "); var loop = Console.ReadKey(); repeat = !loop.Key.ToString().Contains("Escape"); Console.Clear(); } } private static string ProcessCents(string cents) { string english = string.Empty; string dig3 = Process3Digit(cents); if (!string.IsNullOrWhiteSpace(dig3)) { dig3 = string.Format("{0} {1}", dig3, GetSections(0)); } english = dig3 + english; return english; } private static string ProcessDollar(string dollar) { string english = string.Empty; foreach (var item in Get3DigitList(dollar)) { string dig3 = Process3Digit(item.Value); if (!string.IsNullOrWhiteSpace(dig3)) { dig3 = string.Format("{0} {1}", dig3, GetSections(item.Key)); } english = dig3 + english; } return english; } private static string Process3Digit(string digit3) { string result = string.Empty; if (Convert.ToInt32(digit3) != 0) { int place = 0; Stack<string> monetaryValue = new Stack<string>(); for (int i = digit3.Length - 1; i >= 0; i--) { place += 1; string stringValue = string.Empty; switch (place) { case 1: stringValue = GetOnes(digit3[i].ToString()); break; case 2: int tens = Convert.ToInt32(digit3[i]); if (tens == 1) { if (monetaryValue.Count > 0) { monetaryValue.Pop(); } stringValue = GetTens((digit3[i].ToString() + digit3[i + 1].ToString())); } else { stringValue = GetTens(digit3[i].ToString()); } break; case 3: stringValue = GetOnes(digit3[i].ToString()); if (!string.IsNullOrWhiteSpace(stringValue)) { string postFixWith = " Hundred"; if (monetaryValue.Count > 0) { postFixWith = postFixWith + " And"; } stringValue += postFixWith; } break; } if (!string.IsNullOrWhiteSpace(stringValue)) monetaryValue.Push(stringValue); } while (monetaryValue.Count > 0) { result += " " + monetaryValue.Pop().ToString().Trim(); } } return result; } private static Dictionary<int, string> Get3DigitList(string monetaryValueInNumberic) { Dictionary<int, string> hundredsStack = new Dictionary<int, string>(); int counter = 0; while (monetaryValueInNumberic.Length >= 3) { string digit3 = monetaryValueInNumberic.Substring(monetaryValueInNumberic.Length - 3, 3); monetaryValueInNumberic = monetaryValueInNumberic.Substring(0, monetaryValueInNumberic.Length - 3); hundredsStack.Add(++counter, digit3); } if (monetaryValueInNumberic.Length != 0) hundredsStack.Add(++counter, monetaryValueInNumberic); return hundredsStack; } private static string GetTens(string tensPlaceValue) { string englishEquvalent = string.Empty; int value = Convert.ToInt32(tensPlaceValue); Dictionary<int, string> tens = new Dictionary<int, string>(); tens.Add(2, "Twenty"); tens.Add(3, "Thirty"); tens.Add(4, "Forty"); tens.Add(5, "Fifty"); tens.Add(6, "Sixty"); tens.Add(7, "Seventy"); tens.Add(8, "Eighty"); tens.Add(9, "Ninty"); tens.Add(10, "Ten"); tens.Add(11, "Eleven"); tens.Add(12, "Twelve"); tens.Add(13, "Thrteen"); tens.Add(14, "Fourteen"); tens.Add(15, "Fifteen"); tens.Add(16, "Sixteen"); tens.Add(17, "Seventeen"); tens.Add(18, "Eighteen"); tens.Add(19, "Ninteen"); if (tens.ContainsKey(value)) { englishEquvalent = tens[value]; } return englishEquvalent; } private static string GetOnes(string onesPlaceValue) { int value = Convert.ToInt32(onesPlaceValue); string englishEquvalent = string.Empty; Dictionary<int, string> ones = new Dictionary<int, string>(); ones.Add(1, " One"); ones.Add(2, " Two"); ones.Add(3, " Three"); ones.Add(4, " Four"); ones.Add(5, " Five"); ones.Add(6, " Six"); ones.Add(7, " Seven"); ones.Add(8, " Eight"); ones.Add(9, " Nine"); if (ones.ContainsKey(value)) { englishEquvalent = ones[value]; } return englishEquvalent; } private static string GetSections(int section) { string sectionName = string.Empty; switch (section) { case 0: sectionName = "Cents"; break; case 1: sectionName = "Dollars"; break; case 2: sectionName = "Thousand"; break; case 3: sectionName = "Million"; break; case 4: sectionName = "Billion"; break; case 5: sectionName = "Trillion"; break; case 6: sectionName = "Zillion"; break; } return sectionName; } private static bool ValidateInput(string input) { return Regex.IsMatch(input, "[0-9]{1,18}(\\.[0-9]{1,2})?")) } } } 

Answer 14

我真的需要这个为我正在工作的应用程序，但对这里的任何解决scheme不满意。 仅供参考，此解决scheme利用C＃7.0对本地function的支持。 我还使用了新的数字分隔符，使更大的数字更具可读性。

 public static class NumberExtensions { private const string negativeWord = "negative"; private static readonly Dictionary<ulong, string> _wordMap = new Dictionary<ulong, string> { [1_000_000_000_000_000_000] = "quintillion", [1_000_000_000_000_000] = "quadrillion", [1_000_000_000_000] = "trillion", [1_000_000_000] = "billion", [1_000_000] = "million", [1_000] = "thousand", [100] = "hundred", [90] = "ninety", [80] = "eighty", [70] = "seventy", [60] = "sixty", [50] = "fifty", [40] = "forty", [30] = "thirty", [20] = "twenty", [19] = "nineteen", [18] = "eighteen", [17] = "seventeen", [16] = "sixteen", [15] = "fifteen", [14] = "fourteen", [13] = "thirteen", [12] = "twelve", [11] = "eleven", [10] = "ten", [9] = "nine", [8] = "eight", [7] = "seven", [6] = "six", [5] = "five", [4] = "four", [3] = "three", [2] = "two", [1] = "one", [0] = "zero" }; public static string ToWords(this short num) { var words = ToWords((ulong)Math.Abs(num)); return num < 0 ? $"{negativeWord} {words}" : words; } public static string ToWords(this ushort num) { return ToWords((ulong)num); } public static string ToWords(this int num) { var words = ToWords((ulong)Math.Abs(num)); return num < 0 ? $"{negativeWord} {words}" : words; } public static string ToWords(this uint num) { return ToWords((ulong)num); } public static string ToWords(this long num) { var words = ToWords((ulong)Math.Abs(num)); return num < 0 ? $"{negativeWord} {words}" : words; } public static string ToWords(this ulong num) { var sb = new StringBuilder(); var delimiter = String.Empty; void AppendWords(ulong dividend) { void AppendDelimitedWord(ulong key) { sb.Append(delimiter); sb.Append(_wordMap[key]); delimiter = 20 <= key && key < 100 ? "-" : " "; } if (_wordMap.ContainsKey(dividend)) { AppendDelimitedWord(dividend); } else { var divisor = _wordMap.First(m => m.Key <= dividend).Key; var quotient = dividend / divisor; var remainder = dividend % divisor; if (quotient > 0 && divisor >= 100) { AppendWords(quotient); } AppendDelimitedWord(divisor); if (remainder > 0) { AppendWords(remainder); } } } AppendWords(num); return sb.ToString(); } } 

The meat is in the last ToWords overload.