字母自增 string 转换为ASCII转换为string

string c =“B”；   

//string 转换为二进制 转换为ascii

  System.Text.ASCIIEncoding asciiEncoding = new System.Text.ASCIIEncoding();
 int intAsciiCode = (int)asciiEncoding.GetBytes(c)[0];

 //ASCII码强制转换二进制 转换为string
 byte[] array = new byte[1];
 array[0] = (byte)(Convert.ToInt32(intAsciiCode + 1));

c = Convert.ToString(System.Text.Encoding.ASCII.GetString(array));

//结果 c='C'