我正在努力制作一个程序，将数字改为单词，我知道它存在并由Converting numbers in to words
回答但是我想要做的是例如我有一个输入114321该程序首先进入循环处理321到three hundred twenty one然后114但是前缀为千one hundred fourteen thousand，因此整体输出类似于one hundred fourteen thousand three hundred twenty one。我试过这样但是它错了，我甚至没有关闭
public static string NumberToWords(int number)
{
var unitsMap = new[] { "zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen" };
var tensMap = new[] { "zero", "ten", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety" };
var hundredsMap = new[] { "", "Thousand", "Million" };
string words = "";
string snumber = number.ToString();
int tempInt = number;
int counter;
for (counter = 0;counter <= (snumber.Length/3); counter++)
{
if (snumber.Length > 3)
{
tempInt = Convert.ToInt32(snumber.Substring(snumber.Length - 3));
}
if ((tempInt / 100) > 0)
{
words += NumberToWords(tempInt / 100) + " hundred ";
tempInt %= 100;
}
if (tempInt != 0)
{
if (tempInt < 20)
{
words += unitsMap[tempInt];
}
else
{
words += tensMap[tempInt / 10];
if ((tempInt % 10) > 0)
{
words += " " + unitsMap[tempInt % 10];
}
}
}
words += hundredsMap[counter];
}
return words;
}
答案 0 :(得分：1)
使用最少的更改修复代码的主要技巧是，您应该按从右到左的顺序分别为每个组构建字符串，然后按从左到右的顺序将它们添加到字符串中。通过这种方式，您还可以相对轻松地处理额外空间的需求（我的意思是当您拥有“1000300”时，您会得到“one_million_three_hundreds”，所有单词之间只有一个空格，尽管整个“数千”组都丢失了。）< / p>
public static string NumberToWords(int number)
{
if (number == 0)
return "zero";
var unitsMap = new[] { "", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen" };
var tensMap = new[] { "", "ten", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety" };
var hundredsMap = new[] { "", " Thousand", " Million" };
string fullString = "";
bool negative = (number < 0);
int rest = Math.Abs(number);
for (int counter = 0; rest > 0; counter++)
{
string groupWords = "";
int currentGroup = rest % 1000;
rest /= 1000;
int hundreds = currentGroup / 100;
if (hundreds > 0)
{
groupWords += unitsMap[hundreds] + " hundred";
currentGroup %= 100;
}
if (currentGroup != 0)
{
if (groupWords.Length > 0)
groupWords += " ";
if (currentGroup < 20)
{
groupWords += unitsMap[currentGroup];
}
else
{
groupWords += tensMap[currentGroup / 10];
if ((currentGroup % 10) > 0)
{
groupWords += " " + unitsMap[currentGroup % 10];
}
}
}
// handle case such as just "one million"
if (groupWords.Length > 0)
{
groupWords += hundredsMap[counter];
// handle case such as just "one million"
if (fullString.Length == 0)
fullString = groupWords;
else
fullString = groupWords + " " + fullString;
}
}
return negative ? "minus " + fullString : fullString;
}
另请注意，您根本不需要snumber（更不用说其使用中的错误，每个群组总是得到最后3位数字）
答案 1 :(得分：1)
您可以使用以下控制台应用程序代码作为参考来获得结果。 代码将接受最多2位小数的货币值，并以英文打印。
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})?"))
}
}
}