getch () action

getch ():
where the header file: the conio.h
purpose of the function: reads a character from the console, but does not display on the screen of
the function prototype: int getch (void)
Returns: reading characters
example:
char CH; or int CH;
getch (); or ch = getch ();
with getch (); will wait for you to press any key to continue executing the following statement;
with ch = getch (); then will wait for you to press any key to the key corresponding to the character ASCII code is assigned to ch, then execute the following statements.