#include<stdio.h>
int main(){
int i,n,a[4]={30,25,41,102};
char s[5][10]={"apple","pear","orange","grape","exit"};
for(i=0;i<5;i++) printf("[%d] %s\n",(i+1)%5,s[i]);
for(i=0;i<5;i++){
scanf("%d",&n);
if(!n){break;}
else if(n>0&&n<5){printf("price=%.2f\n",a[n-1]/10.0);}
}
return 0;
}
[willie@bogon zhidao]$ gcc shuiguo.c -o shuiguo.o
[willie@bogon zhidao]$ ./shuiguo.o
[1] apple
[2] pear
[3] orange
[4] grape
[0] exit
1
price=3.00
2
price=2.50
3
price=4.10
4
price=10.20
5
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