#include<stdio.h>
#include<math.h>
void fuli()
{
int day;
double total = 1.0f;
float money;
float base;
double total1;
printf("------------------------------------------------------------\n");
printf("每年的年利率比為:");
scanf("%f",&base);
printf("輸入你存入的年數:");
scanf("%d",&day);
total=total*pow(1+base,day);
printf("-------------------------------------------------------------\n");
printf("每年的年利率%f,連續%d年,總受益的利率:%lf\n",base,day,total);
printf("輸入本金金額:");
scanf("%f",&money);
total1=money*total;
printf("你将可以得到:%lf\n",total1);
}
void danli()
total=base*day;
total1=money+money*total;
void daikuan()
double total;
double total2;
scanf("%d",&day);
printf("借款本金金額:");
base=base/12;
day=day*12;
total1=(money*base*pow(1+base,day));
total2=(pow(1+base,day)-1);
total=total1/total2;
printf("你需要每個月還%lf元\n",total);
void fanxiang()
float money;
float base;
double total = 1.0f;
int day;
int x;
char lab;
double total1;
printf("------------------------------------------------------------\n");
printf("請輸入你需要得到的金額:\n");
scanf("%f",&money);
printf("請輸入平均年回報率:\n");
scanf("%f",&base);
printf("請輸入存入的年數\n");
scanf("%d",&day);
lab:printf("若是複利選擇1，單利選擇2\n");
scanf("%d",&x);
if(x==1)
{
total=total*pow(1+base,day);
total1=money/total;
printf("需要的本金為:%f\n",total1);
}
else if(x==2)
total=base*day;
total1=money/(1+total);
else
printf("請重新輸入1或者2\n");
goto lab;
void gupiao()
double base=0.1;
float total;
double day;
printf("請輸入你的本金:\n");
scanf("%f",&total);
printf("此股票平均年報酬率為(百分之十)!\n");
day=(money-total)/(total*base);
printf("需要的年數為:%.3lf年\n",day);
void ligunli()
int i;
double total2;
double total3=0;
printf("若是月利選擇1，年利選擇2\n");
printf("請輸入你的本金:\n");
scanf("%lf",&total1);
printf("請輸入平均月回報率:\n");
printf("請輸入存入的月數\n");
for(i=1;i<=day;i++)
total2=total1+(total1*base);
total1=total2;
total3=total1+total3;
printf("最後可以得到%.3lf元\n",total3);
{
for(i=1;i<=day;i++)
void touzi()
printf("請輸入存入的年數:\n");
scanf("%lf",&day);
base=(money-total)/(day*total);
printf("投資工具報酬率需要有%.3lf才夠\n",base);
void main()
{ while(1){
int num=7;
printf(" \n");
printf(" -------------------------------------\n");
printf(" 歡迎來到廣州商業銀行\n");
printf(" 顧客你可以根據1~7選擇\n");
printf(" 1.複利計算\n");
printf(" 2.單利計算\n");
printf(" 3.送你養老金計算方法\n");
printf(" 4.股票賺錢喲\n");
printf(" 5.投資工具找的好才賺錢喲\n");
printf(" 6.本利與本金的存款計算\n");
printf(" 7.貸款\n");
printf("請根據數字選擇你需要的功能(1~7)\n");
scanf("%d",&num);
switch(num)
{
case 1:
fuli();
break;
case 2:
danli();
case 3:
fanxiang();
case 4:
gupiao();
case 5:
touzi();
case 6:
ligunli();
case 7:
daikuan();
}
此次增加了貸款功能，增加了可以任意計算的功能