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C++ 我的逻辑有什么问题?

转载 作者:行者123 更新时间:2023-11-28 03:31:20 24 4
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我刚刚学习 C++,我需要这个程序来上课。从逻辑上讲它有效。我正在使用 bloodshed.net 的 IDE... 它似乎只是忽略了 cin >> kwh;。我认为这是流血事件的错,不是我的错,但我可能是错的。

这里是代码:

#include <iostream>
#include <iomanip>
using namespace std;
int main()
{

double kwh = -1, monthCost = 0, totalCost = 0;
int monthCount = 0;
bool nextMonth = 0;

do
{
kwh = -1;
cout << "How many KWH did you use month " << ++monthCount << "?\n";
cin >> kwh;

if (kwh <= 1000 && kwh >= 0)
{
monthCost = kwh * 0.6;
}

else if (kwh < 0)
{
cout << "\nInvalid number of KWH.";
while (kwh < 0)
{
cout << "How many KWH did you use month " << monthCount
<< "?\n";
// Could you tell me what I'm doing wrong? I honestly think its
// the programs fault, not mine. Driectly below this comment
// I'm asking the user for the KWH and it just ignores it
// when I compile and run. WHY?!?
cin >> kwh;
}
}

else if (kwh > 1000)
{
monthCost = ((kwh - 1000) * 0.45) + 600;
}


totalCost += monthCost;
cout << "\nYour electric bill for this month " << monthCount << " is $"
<< monthCost << ".\n";

cout << "Would you like to enter another month? (1/0)\n";
cin >> nextMonth;
cout << "\n";
}
while (nextMonth == 1);

cout << "\n\nYour total for all " << nextMonth << " month(s) is %"
<< totalCost << ".\n";
system("pause");


}

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