Question

这些家伙只是帮我解决了一个问题，100％解决了，但现在又有了另外一个。

我编译我的文件和所有内容没有问题，但是当我想运行该程序时没有任何反应。

enter.c：http://pastebin.com/GGzVeAhw simple_interest.c：http://pastebin.com/XdESrxSk

这是我的头文件的样子：

int enter(void);
double Calc_Interest(double principal, double rate, int term);
double Calc_Amount(double principal, double interest);
double Calc_Payments(double total, int term);
void Display_Results(double principal, double interest, double total, double mPay);

PS这个论坛真的很有帮助，特别是像我这样的初学者。

Answer 1

你在main()中有一堆原型，但没有函数调用。

应该是：

int main(void)
{
   enter();
   return 0;
}

你似乎对如何声明和使用函数感到困惑，也许你需要一些教程？

Answer 2

简单兴趣.a

int enter(void);
double Calc_Interest(double principal, double rate, int term);
double Calc_Amount(double principal, double interest);
double Calc_Payments(double total, int term);
void Display_Results(double principal, double interest, double total, double  mPay);

简单兴趣。

//Implement all functions in this file
#include <stdio.h>

double Calc_Interest(double principal, double rate, int term)
{
        double interest;
        interest = principal * (rate/100) *term;

        return interest;
}

double Calc_Amount(double principal, double interest)
{
        double total;
        total = principal + interest;

        return total;
}

double Calc_Payments(double total, int term)
{
        double mPay;
        mPay= total / (12 * term);

        return mPay;
}
void Display_Results(double principal, double interest, double total, double mPay)
{
        printf("\n");
        printf("Personal Loan Statement\n");
        printf("\n");
        printf("Amount Borrowed: %.2f\n" , principal);
        printf("Interest on Loan: %.2f\n" , interest);
        printf("--------------------------------------------------------------------------------\n");
        printf("Amount of Loan: %.2f\n" , total);
        printf("Monthly Payment: %.2f\n" , mPay);

}

<强> sample.c文件

#include <stdio.h>
#include "simple_interest.h"

int enter(void)
{
        double principal, rate, interest, total, mPay;
        int term;

        printf("--------------------------------------------------------------------------------\n");
        printf("This program calculates the monthly payments due from a personal loan\n");
        printf("--------------------------------------------------------------------------------\n");

        printf("Enter amount of the loan: ");
        scanf("%lf", &principal);

        printf("Enter current annual interest rate in \n");
        scanf("%lf", &rate);

        printf("Enter the number of years of the loan: ");
        scanf("%d", &term);

        interest = Calc_Interest(principal, rate, term);
        total = Calc_Amount(principal, interest);
        mPay = Calc_Payments(total, term);

        Display_Results(principal, interest, total, mPay);

        return 0;
}

int main(void)
{
        enter();
        return 0;
}

以这种方式编译

gcc sample.c simple_interest.c
./a.out

我运行程序时没有任何反应

2 个答案: