43 lines
963 B
C
43 lines
963 B
C
|
/*
|
||
|
|
This program shows how to use a DO/WHILE statement to keep displaying
|
||
|
|
the key pressed on the screen. It terminates when the 'q' key is
|
||
|
|
pressed
|
||
|
|
|
||
|
|
James Bonnyman
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <stdio.h> /* Standard include files */
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <conio.h>
|
||
|
|
|
||
|
|
int main(void)
|
||
|
|
{
|
||
|
|
|
||
|
|
char x; /* Define a variable of type char */
|
||
|
|
|
||
|
|
|
||
|
|
/* We now use the while statement. The 'loop' continues to execute */
|
||
|
|
/* until such time as the expression in the brackets becomes false */
|
||
|
|
|
||
|
|
/* we use != , meaning 'Not Equal to' as the test, as we wish the */
|
||
|
|
/* the statements to be executed every time we press a key other */
|
||
|
|
/* than 'q'. Once we press 'q' the code continues on to the next */
|
||
|
|
/* statement */
|
||
|
|
|
||
|
|
/* Note: This time the getch is in the while expression */
|
||
|
|
|
||
|
|
|
||
|
|
do
|
||
|
|
{
|
||
|
|
x = getch();
|
||
|
|
/* Display a message on the screen */
|
||
|
|
printf("\nThe key you pressed was the %c key",x );
|
||
|
|
}
|
||
|
|
while ( x != 'q' );
|
||
|
|
|
||
|
|
// All done :-)
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
}
|