How to convert predefined base types in C #

This article mainly introduces the relevant knowledge of how to convert the predefined basic types of C#, the content is detailed and easy to understand, the operation is simple and fast, and has a certain reference value. I believe you will gain something after reading this article on how to convert predefined basic types of C#. Let's take a look.

1. BitConverter converts the predefined base type to byte data (Unicode) 1, converts the value type into a byte array (Unicode): BitConverter.GetBytes () byte [] data = BitConverter.GetBytes ('ha'); Console.Write (data); / / 200 (two bytes) Console.Write (BitConverter.GetBytes ('1')); / 49 (two bytes) Console.Write (BitConverter.GetBytes / / 2 Console.Write (integer, 32 bits, 4 bytes) Console.Write (BitConverter.GetBytes (1.2)); / / 8 elements (eight bytes) Console.Write (BitConverter.GetBytes (true)); / / 1 (one byte) 2. Convert the byte array to the value type: BitConverter.ToXXX () char str = BitConverter.ToChar (new byte [] {200,84}, 0); Console.Write (str) / / Ha short sho = BitConverter.ToInt16 (new byte [] {69,0}, 0); Console.Write (sho.ToString ()); / / 693. convert the value of each element in the byte array to hexadecimal: BitConverter.ToString (byte []) string strHex = BitConverter.ToString (new byte [] {09,45,65,0,0}); Console.Write (strHex) / 09-2D-41-00-00string strHex = BitConverter.ToString (new byte [] {69,0,0,0,0}); Console.Write (strHex); / / 45-00-00-00-00

Note: related to the BitConverter.IsLittleEndian attribute, true means that the largest significant byte is at the right end of the word.

4. Examples: integers

Corresponding hexadecimal number

(Convert.ToString (*, 16))

Convert to byte array byte []

BitConverter.GetBytes (* *)

Hexadecimal representation of each byte of data

BitConverter.ToString (* *)

11:0x01 (2-bit alignment) [1-006554010004:0x1 0] 01-00-00-006554010004:0x1 0 (2-bit alignment) [4-line 0] 04-00-01-009999999993B9AC9FF:0x3B9AC9FF (2-bit alignment) [255pr 2014pr 59] FF-C9-9A-3B 2, character and ASCII code conversion:

An ASCII code occupies one byte, one of which is a check bit. A total of 27,128 characters, only suitable for all Latin alphabets.

1. Convert characters to ASCII codes: Console.Write (Convert.ToByte ('a')); / / 97Console.Write ((int)'a'); / / 97, cast Console.Write (Convert.ToByte ('1')); / / 49Console.Write ((int)'1'); / / 492,ASCII codes into characters: ASCII (97) = > 'dashes; (char) 97 codes.

Note: the Char character type in C # is Unicode, with each character accounting for 2 bytes.

3. Conversion between string and hexadecimal byte array void Main () {Console.WriteLine (StrToHex ("ha a 1 I z!")); Console.WriteLine ("B9 FE B0A1 61 B5 C4 31 CE D27A 21");} / / string conversion into hexadecimal string public string StrToHex (string mStr) {return BitConverter.ToString (ASCIIEncoding.Default.GetBytes (mStr)) .Replace ("-", "") } / / convert a hexadecimal string to a string public string HexToStr (string mHex) {mHex = mHex.Replace ("", "); if (mHex.Length)