How to convert ascii char to byte in c#

问题

Hello I have a problem with conversion from ASCII to Byte. I have the code:

byte M = Convert.ToByte('M');

but this converts from UTF-16 to byte with I don't want. In my problem I would like to send bytes with ASCII codes.

回答1:

just tell the compiler to convert the char to byte:

 byte b = (byte)'M';

or (see comment of Adwaenyth above)

byte b = Encoding.ASCII.GetBytes("M")[0];

b will have the value 77 (ASCII for M).

Or for a string:

byte[] b2 = Encoding.ASCII.GetBytes("text");

回答2:

Why not use int a = 'm'; It converts the m into its ascii equivalent. You could then use it as you wish.

来源：https://stackoverflow.com/questions/45637214/how-to-convert-ascii-char-to-byte-in-c-sharp