作业3-6 查询水果单价

 

/*查询水果单价*/
#include<stdio.h>
int main(void)
{
    int choice,i;
    double price;
    for(i=1;i<=5;i++){/*for语句开始循环*/
        printf("[1]apples
");/*查询苹果的价格*/
        printf("[2]pears
");/*查询梨子的价格*/
        printf("[3]oranges
");/*查询橘子的价格*/
        printf("[4]grapes
");/*查询葡萄的价格*/
        printf("[0]exit
");/*退出*/
        printf("Enter choice:");/*输入提示*/
        scanf("%d",&choice);
        if(choice==0)
        break;/*跳出for循环*/
        switch(choice){
            case 1:price=3.0;break;/*跳出switch循环*/
            case 2:price=2.5;break;
            case 3:price=4.10;break;
            case 4:price=10.20;break;
            default:price=0.0;break;
        }
        printf("price=%.2f
",price);
        }
       printf("Thanks
");
      return 0;
}