c++ - 错误 1 ​​错误 C4700 : uninitialized local variable 'rate' and 'hours' in C++

Question

我是编程初学者。我正在编写一个 C++ 程序，用户将获得他们的工资率和工作时间，然后计算工资和工作时间，然后显示它。我完成了程序，有两个错误我试图修复，但我仍然无法解决它。错误和我的代码如下。有人可以帮助我并告诉我如何解决吗？我正在使用 MSVS Express 2013。

错误:

Error   1   error C4700: uninitialized local variable 'hours'

Error   2   error C4700: uninitialized local variable 'rate'

(在 displayWeekly(rate, hours); 上出错)

我的代码:

#include "stdafx.h"

#include<iostream>

using namespace std;
void displayWeekly(double rate, int hours);
double getRate();
int getHours();

int main()
{

double rate; 

int hours;

displayWeekly(rate, hours);

double getRate();
int getHours();

rate = getRate();
hours = getHours();

system("pause");
return 0;
}

void displayWeekly(double rate, int hours)
{
double weekPay;
weekPay = rate * hours;
cout << "Weekly pay is " << weekPay << endl;
}

double getRate()
{
double rate;
cout << "Enter your Hourly rate in the Dollars and Cents = ";
cin >> rate;
return rate;
}

int getHours()
{
int time;
cout << "Please Enter in the Hours you worked" << endl;
cout << "You must Enter a whole Number = ";
cin >> time;
return time;
}

Answer 1

你的新 main 应该看起来像这样:

int main()
{
    double rate;
    int hours;

    //double getRate(); --> where do you think the return value is stored to?
    //int getHours();   --> 

    rate = getRate();
    hours = getHours();

    displayWeekly(rate, hours);  // --> has to go after you put values to rate & hours

    system("pause");
    return 0;
}