C # 16 conversions between strings and byte arrays

1. How to convert a decimal number string into a hexadecimal number string in C #
Decimal Turn binary

Console.WriteLine ("Decimal 166 binary representation:" +convert.tostring (166, 2));

Decimal Turn octal

Console.WriteLine ("Octal Representation of decimal 166:" +convert.tostring (166, 8));

Decimal to hexadecimal Console.WriteLine ("Hexadecimal Representation of decimal 166:" +convert.tostring (166, 16));

Binary goto Decimal

Console.WriteLine ("Decimal Representation of binary 111101:" +convert.toint32 ("111101", 2));

Octal goto Decimal

Console.WriteLine ("Decimal Representation of octal 44:" +convert.toint32 ("44", 8));

Hexadecimal goto Decimal

Console.WriteLine ("Decimal representation of the hexadecimal CC:" +convert.toint32 ("CC", 16));

2. In the serial communication process, it is often used to 16 binary and string, byte array between the conversion

Private stringStringtohexstring (strings,encoding encode) {            byte[] b = encode. GetBytes (s);//encodes a string into a byte array according to the specified encoding            stringresult =string.            Empty;  for(inti =0; i < b.length; i++)//byte to 16 characters, separated by%{result+="%"+convert.tostring (B[i], -); }            returnresult; }        Private stringHexstringtostring (stringHS, Encoding encode) {            //split the string with% and remove the null character            string[] chars = hs. Split (New Char[]{'%'},stringsplitoptions.removeemptyentries); byte[] B =New byte[chars.            Length]; //Character-by- byte changes into 16 bytes of data             for(inti =0; I < chars. Length; i++) {B[i]= Convert.tobyte (Chars[i], -); }            //converts a byte array into a string by the specified encoding            returnencode.        GetString (b); } 

string to 16 binary byte array/// <summary>        ///string to 16 binary byte array/// </summary>       /// <param name= "hexstring" ></param>        /// <returns></returns>        Private Static byte[] Strtotohexbyte (stringhexstring) {hexstring= Hexstring.replace (" ",""); if((hexstring.length%2) !=0) hexstring+=" "; byte[] Returnbytes =New byte[Hexstring.length/2];  for(inti =0; i < returnbytes.length; i++) Returnbytes[i]= Convert.tobyte (hexstring.substring (i *2,2), -); returnreturnbytes; }

byte array to 16 binary string/// <summary>        ///byte array to 16 binary string/// </summary>        /// <param name= "bytes" ></param>        /// <returns></returns>         Public Static stringBYTETOHEXSTR (byte[] bytes) {            stringReturnstr =""; if(Bytes! =NULL)            {                 for(inti =0; I < bytes. Length; i++) {Returnstr+ = Bytes[i]. ToString ("X2"); }             }            returnReturnstr; }

convert from Chinese characters to 16 binary/// <summary>        ///convert from Chinese characters to 16 binary/// </summary>        /// <param name= "s" ></param>        /// <param name= "CharSet" >coding, such as "Utf-8", "gb2312"</param>        /// <param name= "Fenge" >whether each character trailing characters Comma separated</param>       /// <returns></returns>         Public Static stringTohex (stringSstringCharSetBOOLFenge) {            if((s.length%2) !=0) {s+=" ";//Space//throw new ArgumentException ("s is not valid Chinese string!");} System.Text.Encoding CHS=System.Text.Encoding.GetEncoding (CharSet); byte[] bytes =CHS.            GetBytes (s); stringstr ="";  for(inti =0; I < bytes. Length; i++) {str+=string. Format ("{0:x}", Bytes[i]); if(Fenge && (i! = bytes. Length-1) ) {str+=string. Format ("{0}",","); }             }            returnStr.         ToLower (); }

16 conversion into Chinese characters///<summary>        ///convert from 16 into Chinese/// </summary>        /// <param name= "hex" ></param>        /// <param name= "CharSet" >coding, such as "Utf-8", "gb2312"</param>       /// <returns></returns>         Public Static stringUnhex (stringHexstringCharSet) {           if(Hex = =NULL)                Throw NewArgumentNullException ("Hex"); Hex= Hex. Replace (",",""); Hex= Hex. Replace ("\ n",""); Hex= Hex. Replace ("\\",""); Hex= Hex. Replace (" ",""); if(Hex. Length%2!=0) {hex+=" -";//Space             }            //you need to convert hex into a byte array.             byte[] bytes =New byte[Hex. Length/2];  for(inti =0; I < bytes. Length; i++)            {                Try                {                    //each of the two characters is a byte. Bytes[i] =byte. Parse (Hex. Substring (i *2,2), System.Globalization.NumberStyles.HexNumber); }                Catch                {                    //Rethrow An exception with custom message.                    Throw NewArgumentException ("Hex is not a valid hex number!","Hex"); }} System.Text.Encoding CHS=System.Text.Encoding.GetEncoding (CharSet); returnCHS.         GetString (bytes); }//The above article is reproduced!

C # 16 conversions between strings and byte arrays