C # convert lowercase renminbi to uppercase

        /// <summary>         ///convert renminbi size amount/// </summary>         /// <param name= "num" >Amount</param>         /// <returns>return uppercase Form</returns>          Public Static stringCmycurd (decimalnum) {            stringSTR1 ="0 One and three Woolu Qi Ba Jiu";//0-9 The corresponding Chinese characters            stringSTR2 ="Thousand thousand hundred billion thousand to pick up thousand hundred yuan angle cent";//Chinese characters corresponding to digit digits            stringSTR3 ="";//value taken from the original NUM value            stringSTR4 ="";//the string form of a number            stringSTR5 ="";//RMB capitalization amount form            intI//Loop Variable            intJ//the value of num multiplied by the string length of 100            stringCH1 ="";//the Chinese reading method of numbers            stringCH2 ="";//the Chinese character reading method of digit digit            intNzero =0;//to calculate a continuous 0 value is a few            intTemp//value taken from the original NUM valueNum= Math.Round (Math.Abs (num),2);//Takes num absolute value and rounds it to 2 decimal placesSTR4 = ((Long) (NUM * -)). ToString ();//multiply num by 100 and convert to string formj = Str4. Length;//find the highest bit            if(J > the) {return "Overflow"; } STR2= str2. Substring ( the-j);//Remove the value of the str2 corresponding to the number of digits. such as: 200.55,j is 5, so str2= bai yuan Angle points//loop out the values that each bit needs to be converted             for(i =0; I < J; i++) {STR3= Str4. Substring (I,1);//Remove the value of a bit to be convertedtemp = Convert.ToInt32 (STR3);//Convert to Digital                if(I! = (J-3) && I! = (J-7) && I! = (J- One) && I! = (J- the))                {                    //When the number of digits is not the number of yuan, million, billion, trillion                    if(STR3 = ="0") {ch1=""; CH2=""; Nzero= Nzero +1; }                    Else                    {                        if(STR3! ="0"&& Nzero! =0) {ch1="0"+ 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                {                    //This bit is a trillion, million, million, yuan and other key bits                    if(STR3! ="0"&& Nzero! =0) {ch1="0"+ 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 >= One) {ch1=""; Nzero= Nzero +1; }                                Else{ch1=""; CH2= str2. Substring (I,1); Nzero= Nzero +1; }                            }                        }                    }                }                if(i = = (J- One) || i = = (J-3))                {                    //If the bit is an million-bit or meta-bit, you must write theCH2 = str2. Substring (I,1); } STR5= STR5 + Ch1 +CH2; if(i = = J-1&& STR3 = ="0")                {                    //The last one (minutes) is 0 o'clock, plus "whole"STR5 = STR5 +'Whole'; }            }            if(num = =0) {STR5="0 Yuan Whole"; }            returnSTR5; }        /**/        /// <summary>         ///an overload that converts the string first to a number in the call Cmycurd (decimal num)/// </summary>         /// <param name= "num" >amount entered by the user, string form not converted to decimal</param>         /// <returns></returns>          Public Static stringCmycurd (stringnumstr) {            Try            {                decimalnum =Convert.todecimal (NUMSTR); returncmycurd (num); }            Catch            {                return "non-digital form! "; }        }

C # convert lowercase renminbi to uppercase