c#實現(xiàn)人民幣大小寫轉(zhuǎn)換的代碼

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;


namespace Utility
{
    /// <summary>
    ///金錢轉(zhuǎn)換成大寫    DBA群： 225982985
    /// </summary>
    public class ConvertMoney
    {
        public ConvertMoney()
        {
            //
            //TODO: 在此處添加構(gòu)造函數(shù)邏輯
            //
        }
        /// <summary>
        /// 把數(shù)字轉(zhuǎn)換成對應(yīng)的大寫錢數(shù)
        /// </summary>
        /// <param name="strDigital">要轉(zhuǎn)換的數(shù)字</param>
        /// <returns>轉(zhuǎn)換結(jié)果</returns>
        public string ConvertSumToCap(string strDigital)
        {
            decimal dshuzi;
            string ret = "";
            dshuzi = decimal.Parse(strDigital);


            if (dshuzi == 0)
            {
                ret = "零元整";
                return ret;
            }


            string je = dshuzi.ToString("####.00");
            if (je.Length > 15)
                return "";
            je = new String('0', 15 - je.Length) + je;//若小于15位長，前面補0


            string stry = je.Substring(0, 4);//取得'億'單元
            string strw = je.Substring(4, 4);//取得'萬'單元
            string strg = je.Substring(8, 4);//取得'元'單元
            string strf = je.Substring(13, 2);//取得小數(shù)部分


            string str1 = "", str2 = "", str3 = "";


            str1 = this.getupper(stry, "億");//億單元的大寫
            str2 = this.getupper(strw, "萬");//萬單元的大寫
            str3 = this.getupper(strg, "元");//元單元的大寫


            string str_y = "", str_w = "";
            if (je[3] == '0' || je[4] == '0')//億和萬之間是否有0
                str_y = "零";
            if (je[7] == '0' || je[8] == '0')//萬和元之間是否有0
                str_w = "零";


            ret = str1 + str_y + str2 + str_w + str3;//億，萬，元的三個大寫合并


            for (int i = 0; i < ret.Length; i++)//去掉前面的"零"
            {
                if (ret[i] != '零')
                {
                    ret = ret.Substring(i);
                    break;
                }


            }
            for (int i = ret.Length - 1; i > -1; i--)//去掉最后的"零"
            {
                if (ret[i] != '零')
                {
                    ret = ret.Substring(0, i + 1);
                    break;
                }
            }


            if (ret[ret.Length - 1] != '元')//若最后不位不是'元'，則加一個'元'字
                ret = ret + "元";


            if (ret == "零零元")//若為零元，則去掉"元數(shù)"，結(jié)果只要小數(shù)部分
                ret = "";


            if (strf == "00")//下面是小數(shù)部分的轉(zhuǎn)換
            {
                ret = ret + "整";
            }
            else
            {
                string tmp = "";
                tmp = this.getint(strf[0]);
                if (tmp == "零")
                    ret = ret + tmp;
                else
                    ret = ret + tmp + "角";


                tmp = this.getint(strf[1]);
                if (tmp == "零")
                    ret = ret + "整";
                else
                    ret = ret + tmp + "分";
            }


            if (ret[0] == '零')
            {
                ret = ret.Substring(1);//防止0.03轉(zhuǎn)為"零叁分"，而直接轉(zhuǎn)為"叁分"
            }


            return ret;//完成，返回
        }


        /// <summary>
        /// 把一個單元轉(zhuǎn)為大寫，如億單元，萬單元，個單元
        /// </summary>
        /// <param name="str">這個單元的小寫數(shù)字（4位長，若不足，則前面補零）</param>
        /// <param name="strDW">億，萬，元</param>
        /// <returns>轉(zhuǎn)換結(jié)果</returns>
        private string getupper(string str, string strDW)
        {
            if (str == "0000")
                return "";


            string ret = "";
            string tmp1 = this.getint(str[0]);
            string tmp2 = this.getint(str[1]);
            string tmp3 = this.getint(str[2]);
            string tmp4 = this.getint(str[3]);
            if (tmp1 != "零")
            {
                ret = ret + tmp1 + "仟";
            }
            else
            {
                ret = ret + tmp1;
            }


            if (tmp2 != "零")
            {
                ret = ret + tmp2 + "佰";
            }
            else
            {
                if (tmp1 != "零")//保證若有兩個零'00'，結(jié)果只有一個零，下同
                    ret = ret + tmp2;
            }


            if (tmp3 != "零")
            {
                ret = ret + tmp3 + "拾";
            }
            else
            {
                if (tmp2 != "零")
                    ret = ret + tmp3;
            }


            if (tmp4 != "零")
            {
                ret = ret + tmp4;
            }


            if (ret[0] == '零')//若第一個字符是'零'，則去掉
                ret = ret.Substring(1);
            if (ret[ret.Length - 1] == '零')//若最后一個字符是'零'，則去掉
                ret = ret.Substring(0, ret.Length - 1);


            return ret + strDW;//加上本單元的單位


        }
        /// <summary>
        /// 單個數(shù)字轉(zhuǎn)為大寫
        /// </summary>
        /// <param name="c">小寫阿拉伯?dāng)?shù)字 0---9</param>
        /// <returns>大寫數(shù)字</returns>
        private string getint(char c)
        {
            string str = "";
            switch (c)
            {
                case '0':
                    str = "零";
                    break;
                case '1':
                    str = "壹";
                    break;
                case '2':
                    str = "貳";
                    break;
                case '3':
                    str = "叁";
                    break;
                case '4':
                    str = "肆";
                    break;
                case '5':
                    str = "伍";
                    break;
                case '6':
                    str = "陸";
                    break;
                case '7':
                    str = "柒";
                    break;
                case '8':
                    str = "拐";
                    break;
                case '9':
                    str = "玖";
                    break;
            }
            return str;
        }


    }
} 
 

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