第三章例3-8

#include<stdio.h>
int main(void)
{
	int choice,i;
	double price;

	for(i=1;i<=5;i++){

		printf("[1]Select crisps\n");
		printf("[2]Select popcorn\n");
		printf("[3]Select chocolate\n");
		printf("[4]Select cola\n");
		printf("[0]exit\n");

		printf("Enter choice:");
		scanf("%d",&choice);

		if(choice==0)
			break;

		switch(choice){
            case 1:price=3.0;break;
            case 2:price=2.5;break;
            case 3:price=4.0;break;
            case 4:price=3.5;break;
            case 5:price=0.0;break;
		}
printf("price=%0.lf\n",price);
	}
	printf("Thanks\n");

	return 0;
}