【C#】字符转ASCII码，ASCII码转字符 

字符转ASCII码：

public static int Asc(string character)   {    if (character.Length == 1)    {     System.Text.ASCIIEncoding asciiEncoding = new System.Text.ASCIIEncoding();     int intAsciiCode = (int)asciiEncoding.GetBytes(character)[0];     return (intAsciiCode);    }    else    {     throw new Exception("Character is not valid.");    }

  }

ASCII码转字符：

public static string Chr(int asciiCode)   {    if (asciiCode >= 0 && asciiCode <= 255)    {     System.Text.ASCIIEncoding asciiEncoding = new System.Text.ASCIIEncoding();     byte[] byteArray = new byte[] { (byte)asciiCode };     string strCharacter = asciiEncoding.GetString(byteArray);     return (strCharacter);    }    else    {     throw new Exception("ASCII Code is not valid.");    }   }