Reading strings in C

I recently encountered a small problem when I was doing the Sichuan University retest questions. Something strange happened.

Is about

 

Char C;

C = getchar ()

Or

Char C;

Scanf ("% C", & C );

 

Both functions can obtain the input characters from the console. However, it must be noted that.

 

If a prompt appears, enter a character and press Enter .. In fact, you entered two characters at this time, that is, ifProgramPlaced in

 

While (true) {...}, the characters you entered and the carriage return characters are accepted respectively .. Because the system places all the characters you entered in the buffer and reads one character at a time .. So.

 

To achieve this, use char C sanf ("% s", & C ..