例3-8

#include<stdio.h> int main(void) {    int choice,i;    double price;
   for(i=1;i<=5;i++){         printf("[1]Select crisps ");         printf("[2]Select popcorn ");         printf("[3]Select chocolate ");         printf("[4]Select cola ");         printf("[0]exit ");
         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;              default:price=0.0;break;          }           printf("price=%0.1f ",price);        }           printf("Thanks ");           return 0;       }