Question

您好，这是我的计划的目的：

储蓄账户余额

编写一个程序，计算三个月期末储蓄账户的余额。它应该询问用户起始余额和年利率。然后循环应该在每个月中迭代一次，执行以下步骤：

A）询问用户在该月内存入帐户的总金额并将其添加到帐户中平衡。不要接受负数。

B）询问用户在该月份从帐户中提取的总金额并减去该金额从平衡。不要接受大于余额的负数或数字本月的存款已加入。

C）计算该月的利息。每月利率是年利率除以12.将月利率乘以该月的平均值并结束余额以获得当月的利息金额。应添加此金额达到平衡。

在最后一次迭代之后，程序应显示包含以下内容的报告信息：

三个月期间开始时的起始余额
三个月内的总存款
三个月内提取的总数
三个月内在帐户中发布的总利息
最终余额

我遇到的问题是，当我显示表格时，我的总存款，提款和利息金额仅显示循环结束时的最后一个实例，而不是三个月内的总金额。这是我的代码，抱歉，如果它不必要地复杂或混乱。

#include <iostream>
#include <iomanip>
using namespace std;

int main()
{
//variables
double depositAmount;
double withdrawAmount;
int monthPeriod = 3;
double startBalance;
double finalBalance;
double totalBalance;
double annInterestRate;
double monthInterestRate;
double monthInterestAmount;
double monthAverageBalance;
double monthAverageAmount;
int count;

cout << "What is your starting balance?   ";
cin >> totalBalance;
cout << "What is your annual rate?  "; 
cin >> annInterestRate;

for (count = 1; count <= monthPeriod; count++)
{
    cout << "Enter total amount deposited for the month  ";
    cin >> depositAmount;
    while (depositAmount < 0)
    {
        cout << "Error, no negative amounts, please try again." << endl;
        cin >> depositAmount;
    }
    cout << "Enter total amount withdrawn for the month  ";
    cin >> withdrawAmount;
    while (withdrawAmount < 0 || withdrawAmount > totalBalance)
    {
        cout << "Error, no negative amounts or withdrawals greater than your balance. Please try    again" << endl;
        cin >> withdrawAmount;
    }
    startBalance = totalBalance + depositAmount;
    finalBalance = totalBalance - withdrawAmount;
    totalBalance = startBalance - finalBalance;
    monthInterestRate = annInterestRate * 12;
    monthAverageBalance = (startBalance + finalBalance) / 2;
    monthInterestAmount = monthAverageBalance * monthInterestRate;
    totalBalance = monthInterestAmount + totalBalance;
}
cout << "Your starting balance at the beginning of three months " << startBalance << endl;
cout << "Total deposits over three months  " << depositAmount << endl;
cout << "Total withdrawals over three months  " << withdrawAmount << endl;
cout << "Total interest posted to account over three months " << monthInterestAmount << endl;
cout << "Final Balance: " << totalBalance << endl;
cout << "Thank you for using the program!" << endl;
return 0;
}

Answer 1

这似乎是一个硬件问题，所以也许我只是给出一个提示。提示：每月存款积累的变量是什么？

另外，一个未经请求的答案：您的月利率可能不是12 *年利率，可能是年率/ 12.希望这会有所帮助。

在循环结束后总结变量的值

1 个答案: