如何在ASP.NET Core 6 MVC中将卢比金额以英文单词形式显示？

核心思路 #

通过创建C#工具类实现数字到英文单词的转换逻辑，之后在MVC的控制器或视图中调用该工具类，即可将卢比金额（整数或带小数的金额）转换为对应的英文单词形式。

1. 创建数字转英文单词的工具类 #

在项目中新建Helpers文件夹，添加NumberToWordsConverter.cs类，实现核心转换逻辑：

public static class NumberToWordsConverter
{
    private static readonly string[] Ones = { "", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen" };
    private static readonly string[] Tens = { "", "", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety" };

    // 处理整数金额转换
    public static string ConvertToWords(int number)
    {
        if (number == 0)
            return "zero";

        if (number < 0)
            return "minus " + ConvertToWords(Math.Abs(number));

        string words = "";

        // 适配印度计数系统（crore、lakh）
        if ((number / 10000000) > 0)
        {
            words += ConvertToWords(number / 10000000) + " crore ";
            number %= 10000000;
        }

        if ((number / 100000) > 0)
        {
            words += ConvertToWords(number / 100000) + " lakh ";
            number %= 100000;
        }

        if ((number / 1000) > 0)
        {
            words += ConvertToWords(number / 1000) + " thousand ";
            number %= 1000;
        }

        if ((number / 100) > 0)
        {
            words += ConvertToWords(number / 100) + " hundred ";
            number %= 100;
        }

        if (number > 0)
        {
            if (words != "")
                words += "and ";

            if (number < 20)
                words += Ones[number];
            else
            {
                words += Tens[number / 10];
                if ((number % 10) > 0)
                    words += "-" + Ones[number % 10];
            }
        }

        return words.Trim();
    }

    // 处理带小数的卢比金额（如1000.50）
    public static string ConvertCurrencyToWords(decimal amount)
    {
        int integerPart = (int)Math.Floor(amount);
        int decimalPart = (int)Math.Round((amount - integerPart) * 100);

        string words = ConvertToWords(integerPart) + " rupees";

        if (decimalPart > 0)
            words += " and " + ConvertToWords(decimalPart) + " paise";

        return words;
    }
}

注：代码默认适配印度计数体系（crore、lakh），如果需要通用国际计数逻辑（million、billion），可替换对应计数单位的判断代码。

2. 在ASP.NET Core 6 MVC中使用工具类 #

方式一：控制器处理后传递到视图

在控制器Action中调用工具类，将转换结果传给视图：

public IActionResult Index()
{
    int amount = 1000;
    string amountInWords = NumberToWordsConverter.ConvertToWords(amount);
    // 带小数场景示例：decimal amount = 1234.50m; string amountInWords = NumberToWordsConverter.ConvertCurrencyToWords(amount);
    ViewBag.AmountInWords = amountInWords;
    return View();
}

在Index.cshtml视图中展示结果：

<p>金额1000对应的英文单词：@ViewBag.AmountInWords</p>

方式二：直接在视图中调用工具类

在视图中直接引用工具类并调用方法：

@using YourProjectNamespace.Helpers

@{
    int amount = 1000;
    string words = NumberToWordsConverter.ConvertToWords(amount);
}

<p>转换结果：@words</p>

示例效果 #

• 输入1000 → 输出one thousand
• 输入12345 → 输出twelve thousand three hundred and forty-five
• 输入100000 → 输出one lakh（印度计数逻辑）或one hundred thousand（国际计数逻辑）

内容的提问来源于stack exchange，提问作者Rohith Ramesh