using System;namespace HaiNuo
{
    /*****************************************************************************************
     * 类名:DecimalToUpper                                             *
     * 功能:把金额数据从小写转换为大写                              *
     * 限制条件:金额小于一万亿,且少于两位小数                  *
     * 作者:雷俊强 [email protected]                      *
     * 日期:2003-5-6                              *
     * 用法:DecimalToUpper x = new DecimalToUpper();                  *
     *       this.textBox2.Text = x.ToUpper(d);                      *
     *       欢迎下载、使用                                                                  *
     * FOR my wife and my son                                                                *
     *****************************************************************************************/
    public class DecimalToUpper
    {
        public DecimalToUpper()
        {
            //
            // TODO: 在此处添加构造函数逻辑
            //
        }        /// <summary>
        /// 小写金额转换为大写金额,其他条件:金额小于一万亿,最多两位小数
        /// </summary>
        /// <param name="d">源金额,d 《 1000000000000.00(一万亿),且最多两位小数 </param>
        /// <returns>结果,大写金额</returns>
        public string ToUpper(decimal d)
        {
            if (d == 0)
                return "零元整";

            string je = d.ToString("####.00");
            if (je.Length > 15)
                return "";
            je = new String('0',15 - je.Length) + je; //若小于15位长,前面补0            string stry = je.Substring(0,4); //取得'亿'单元
            string strw = je.Substring(4,4); //取得'万'单元
            string strg = je.Substring(8,4); //取得'元'单元
            string strf = je.Substring(13,2); //取得小数部分

            string str1 = "",str2 = "",str3 = "";            str1 = this.getupper(stry,"亿"); //亿单元的大写
            str2 = this.getupper(strw,"万"); //万单元的大写
            str3 = this.getupper(strg,"元"); //元单元的大写
            string str_y = "", str_w = "";
            if (je[3] == '0' || je[4] == '0') //亿和万之间是否有0
                str_y = "零";
            if (je[7] == '0' || je[8] == '0') //万和元之间是否有0
                str_w = "零";            string ret = str1 + str_y + str2 + str_w + str3; //亿,万,元的三个大写合并            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',则加一个'元'字
                ret = ret + "元";            if (ret == "零零元") //若为零元,则去掉"元数",结果只要小数部分
                ret = "";

            if (strf == "00") //下面是小数部分的转换
            {
                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转为"零叁分",而直接转为"叁分"
            }            return  ret; //完成,返回
        }
        /// <summary>
        /// 把一个单元转为大写,如亿单元,万单元,个单元
        /// </summary>
        /// <param name="str">这个单元的小写数字(4位长,若不足,则前面补零)</param>
        /// <param name="strDW">亿,万,元</param>
        /// <returns>转换结果</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") //保证若有两个零'00',结果只有一个零,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') //若第一个字符是'零',则去掉
                ret = ret.Substring(1);
            if (ret[ret.Length - 1] == '零') //若最后一个字符是'零',则去掉
                ret = ret.Substring(0,ret.Length - 1);            return ret + strDW; //加上本单元的单位

        }
        /// <summary>
        /// 单个数字转为大写
        /// </summary>
        /// <param name="c">小写阿拉伯数字 0---9</param>
        /// <returns>大写数字</returns>
        private string getint(char c)
        {
            string str = "";
            switch ( c )
            {
                case '0':
                    str = "零";
                    break;
                case '1':
                    str = "壹";
                    break;
                case '2':
                    str = "贰";
                    break;
                case '3':
                    str = "叁";
                    break;
                case '4':
                    str = "肆";
                    break;
                case '5':
                    str = "伍";
                    break;
                case '6':
                    str = "陆";
                    break;
                case '7':
                    str = "柒";
                    break;
                case '8':
                    str = "拐";
                    break;
                case '9':
                    str = "玖";
                    break;
            }
            return str;
        }
    }
}

解决方案 »

  1.   

    呵呵,把楼上的反写一下不就行了?//我就用汉语来描述吧。
    //我们采取的是每个汉字进行的分析。
    private string UpperToDecimal(string input)
    {
    //一下代码没有经过调试;
    每次取input输入进来的每个字符 例如:input = "五万三千二百八十九圆五角七分"
    当然要是大写字母啊。
    每次取出一个字符来key。//在这里用循环
    string key;
    string nokey1,nokey2;
    for(int i=len(input);i>0;i--)
    {
    key = input[i];
    if (key=="零一二三四五"中的任何字符)getint(key)
    else 
    {
     再进行数位的处理。

    }//大体思路就是这样,楼主可以自己写程序。
    }
            private string getint(string c)
            {
                string str = "";
                switch ( c )
                {
                    case '零':
                        str = "0";
                        break;
                    case '壹':
                        str = "1";
                        break;
                    case '贰':
                        str = "2";
                        break;
                    case '叁':
                        str = "3";
                        break;
                    case '肆':
                        str = "4";
                        break;
                    case '伍':
                        str = "5";
                        break;
                    case '陆':
                        str = "6";
                        break;
                    case '柒':
                        str = "7";
                        break;
                    case '拐':
                        str = "8";
                        break;
                    case '玖':
                        str = "9";
                        break;
                }
                return str;
            }
      

  2.   

    #region 大写转为小写
    public float BigToLittle(string highcasemoney)
    {
    float money=0,sum=0,num1=0,num2=0;
    int length=highcasemoney.Length;
    string symbol="";
    for(int i=0;i<length;i++)
    {
    symbol=highcasemoney.Substring(i,1);
    num1=ConvertToBig(symbol);
    if(num1>=0&&num1<=9)
    {
    if(i==length-1)
    {
    money+=num1;
    }
    }
    else if(num1==1000||num1==100||num1==10)
    {
    money+=num1*num2;
    }
    else if(num1==100000000||num1==10000)
    {
    if(num2>=0&&num2<=9)
    {
    money+=num2;
    }
    money*=num1;
    sum+=money;
    money=0;
    }
    num2=num1;
    }
    return money+sum;
    } private int ConvertToBig(string bigsymbol)
    {
    int temp;
    switch(bigsymbol)
    {
    case "零":
    temp=0;
    break;
    case "壹":
    temp=1;
    break;
    case "贰":
    temp=2;
    break;
    case "叁":
    temp=3;
    break;
    case "肆":
    temp=4;
    break;
    case "伍":
    temp=5;
    break;
    case "陆":
    temp=6;
    break;
    case "柒":
    temp=7;
    break;
    case "捌":
    temp=8;
    break;
    case "玖":
    temp=9;
    break;
    case "拾":
    temp=10;
    break;
    case "佰":
    temp=100;
    break;
    case "仟":
    temp=1000;
    break;
    case "萬":
    temp=10000;
    break;
    case "亿":
    temp=100000000;
    break;
    default:
    temp=-1;
    break;
    }
    return temp;
    }
    #endregion