public string CmycurD(decimal num)    {        string str1 = "零壹贰叁肆伍陆柒捌玖";    //0-9所对应的汉字         string str2 = "万仟佰拾亿仟佰拾万仟佰拾元角分"; //数字位所对应的汉字         string str3 = "";  //从原num值中取出的值         string str4 = "";  //数字的字符串形式         string str5 = "";  //人民币大写金额形式         int i;  //循环变量         int j;  //num的值乘以100的字符串长度         string ch1 = "";  //数字的汉语读法         string ch2 = "";  //数字位的汉字读法         int nzero = 0;  //用来计算连续的零值是几个         int temp;    //从原num值中取出的值         num = Math.Round(Math.Abs(num), 2);  //将num取绝对值并四舍五入取2位小数         str4 = ((long)(num * 100)).ToString();    //将num乘100并转换成字符串形式         j = str4.Length;  //找出最高位         if (j > 15) { return "溢出"; }        str2 = str2.Substring(15 - j); //取出对应位数的str2的值。如：200.55,j为5所以str2=佰拾元角分         //循环取出每一位需要转换的值         for (i = 0; i < j; i++)        {            str3 = str4.Substring(i, 1);    //取出需转换的某一位的值             Int32.TryParse(str3, out temp);            if (i != (j - 3) && i != (j - 7) && i != (j - 11) && i != (j - 15))            {                //当所取位数不为元、万、亿、万亿上的数字时                 if (str3 == "0")                {                    ch1 = "";                    ch2 = "";                    nzero = nzero + 1;                }                else                {                    if (str3 != "0" && nzero != 0)                    {                        ch1 = "零" + str1.Substring(temp * 1, 1);                        ch2 = str2.Substring(i, 1);                        nzero = 0;                    }                    else                    {                        ch1 = str1.Substring(temp * 1, 1);                        ch2 = str2.Substring(i, 1);                        nzero = 0;                    }                }            }            else            {                //该位是万亿，亿，万，元位等关键位                 if (str3 != "0" && nzero != 0)                {                    ch1 = "零" + str1.Substring(temp * 1, 1);                    ch2 = str2.Substring(i, 1);                    nzero = 0;                }                else                {                    if (str3 != "0" && nzero == 0)                    {                        ch1 = str1.Substring(temp * 1, 1);                        ch2 = str2.Substring(i, 1);                        nzero = 0;                    }                    else                    {                        if (str3 == "0" && nzero >= 3)                        {                            ch1 = "";                            ch2 = "";                            nzero = nzero + 1;                        }                        else                        {                            if (j >= 11)                            {                                ch1 = "";                                nzero = nzero + 1;                            }                            else                            {                                ch1 = "";                                ch2 = str2.Substring(i, 1);                                nzero = nzero + 1;                            }                        }                    }                }            }            if (i == (j - 11) || i == (j - 3))            {                //如果该位是亿位或元位，则必须写上                 ch2 = str2.Substring(i, 1);            }            str5 = str5 + ch1 + ch2;            if (i == j - 1 && str3 == "0")            {                //最后一位（分）为0时，加上“整”                 str5 = str5 + ‘整‘;            }        }        if (num == 0)        {            str5 = "零元整";        }        return str5;    }