Question

我正在尝试建立通胀率计算器，但它不起作用。我现在已经离开这个国家并且使用学校的PC所以所有的错误都出现在韩语中，我已经翻译了它们但却不太了解它们。

#include <iostream>
using namespace std;

double inflationRate (double startingPrice, double currentPrice);

int main()
{
    double startingPrice, currentPrice;
    char again;

    do 
    {
        cout << "enter the price of the item when you bought it: ";
        cin >> startingPrice;

        cout << "enter the price of the item today: ";
        cin >> currentPrice;

        cout << "the inflation Rate is: " << inflationRate(startingPrice, currentPrice) << "%";

        cout << "would you like to try another item (y/n)?";
        cin >> again;

    }while((again == 'Y') || (again =='y'));

    return 0;
}

double inflationRate(double startingPrice, double currentPrice)
{
    return ((currentPrice - startingPrice) / startingPrice);
}

1＆GT; ------ Build build：项目：测试，配置：调试Win32 ------

1＆GT;建立开始时间：2016-09-22 11:04:39 AM

1＆GT; InitializeBuildStatus：

1＆GT; “Debug \ testing.unsuccessfulbuild”连接（触摸）a。

1＆GT; ClCompile：

1＆GT;所有输出都是最新的。

1＆GT; ManifestResourceCompile：

1＆GT;所有输出都是最新的。

1＆GT; LINK：致命错误LNK1123：转换为COFF期间发生错误。或者损坏的文件不正确。

1＆GT;

1＆GT;未能建立。

1＆GT;

1＆GT;经过时间：00：00：00.08

==========构建：0成功，1失败，最新0,0跳过==========

Answer 1

您正在声明无用的变量inflationRate，而不是调用函数inflationRate。我认为这就是你想要的（我假设第一行缺少#是复制粘贴错误）：

#include <iostream>
using namespace std;


double inflationRate (double startingPrice, double currentPrice);  // <-- Missing semicolon!


int main() // <-- Not void; use int.
{
double startingPrice, currentPrice; // <-- Removed inflationRate variable.
char again;

do 
{
    cout << "enter the price of the item when you bought it: ";
    cin >> startingPrice;

    cout << "enter the price of the item today: ";
    cin >> currentPrice;

    cout << "the inflation Rate is: " << inflationRate(startingPrice, currentPrice) << "%"; // <-- Calling inflationRate

    cout << "would you like to try another item (y/n)?";
    cin >> again;

}while((again == 'Y') || (again =='y'));

return 0;

}

double inflationRate(double startingPrice, double currentPrice)
{
    return ((currentPrice - startingPrice) / startingPrice);
}

通胀率计算器c ++

1 个答案: