5.4已知银行不同期限存款的年息利率，求其本利之和

#include <stdio.h>#include <stdlib.h>int main(){    int a,n,s1,s2,s3,s4,s5;    scanf ("%d%d",&a,&n);    s1=a+a*0.0225*1;    s2=a+a*0.0243*2;    s3=a+a*0.0270*3;    s4=a+a*0.0288*5;    s5=a+a*0.0300*8;    switch(n)    {        case 1:        printf ("%d\n",s1);        break ;         case 2:        printf ("%d\n",s2);         break ;         case 3:        printf ("%d\n",s3);         break ;         case 5:        printf ("%d\n",s4);         break ;         case 8:        printf ("%d\n",s5);         break ;    }    return 0;}

运行结果如下：

知识点：学会使用switch函数