lobby3.c

C.Game.Programming.For.Dummies原码

/* Theater lobby snack bar program */

#include <stdio.h>
#include <conio.h>
#include <ctype.h>

#define TRUE 1		//This is true
#define FALSE !(TRUE)	//This is not true

void main()
{
	char c;		//their choice
	int done;	//while loop ender
	float total=0;	//start their total at zero;

	printf("Please make your treat selections:\n");
	printf("B - Beverage.\n");
	printf("C - Candy.\n");
	printf("H - Hot dog.\n");
	printf("P - Popcorn.\n");
	printf("= - Done.\n");
	printf("Your choice:\n");

/* Now you must figure out what they typed in. */

	done=FALSE;
	while(!done)
	{
		c=toupper(getch());	//get input
		switch(c)		//find the key they pressed
		{
			case 'B':	//Beverage
				printf("B - Beverage\tThat will be $2\n");
				total+=2;
				break;
			case 'C':	//Candy
				printf("C - Candy\tThat will be $1.50\n");
				total+=1.5;
				break;
			case 'H':	//Hot dog
				printf("H - Hot dog\tThat will be $4\n");
				total+=4;
				break;
			case 'P':	//Pop corn
				printf("P - Popcorn\tThat will be $3\n");
				total+=3;
				break;
			case '=':	//done
				printf("= Total of $%.2f\n",total);
				printf("Please pay the cashier.\n");
				done=TRUE;
		}	//end switch-case
	}		//end while
}