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我已经创建一个简单的菜单驱动的转换程序,但在功能(英里到公里一个)一个以某种方式创造了一个无限循环,不知道如何解决它。基本菜单驱动程序C++,无限循环
第二个函数似乎工作得很好。 任何意见或建议非常感谢。
#include <iostream>
#include <cmath>
using namespace std;
void showChoices();
double miles(double, double);
double degf(double, double);
int main()
{
double x, y;
int choice;
do
{
showChoices();
cin >> choice;
switch (choice)
{
case 1:
cout << "Input miles to be converted, enter * to submit: \n";
cin >> x >> y;
cout << x << " is " << miles(x,y) << " in kilometers" << endl;
break;
case 2:
cout << "Input degrees (in Farenheit) to be converted, enter * to submit: \n";
cin >> x >> y;
cout << x << " is " << degf(x,y) << " in degrees Celsius" << endl;
break;
}
}
while (choice != 2);
return 0;
}
void showChoices()
{
cout << "MENU" << endl;
cout << "1: Miles to Kilometers " << endl;
cout << "2: Farenheit to Celsius " << endl;
}
double miles(double mi, double km)
{
return km = mi * 1.609344;
}
double degf(double fah, double cel)
{
return cel = 5*(fah-32)/9;
}
正如已经发现的bug,我会建议你有“默认”的情况下,也可以是你可以添加一个字段来检查,如果你想进一步继续,或者没有更好的方法来控制你的循环。 –