好的，我正在研究这个项目及其旅行费用计划。基本上它只是有一些从用户获取信息的功能。我的for循环有问题。跑步总数搞乱了。这些数字最终会变成2或4个数字。这是代码（我知道它不整齐或我以后会清理它的任何东西）
#include <iostream>
#include <fstream>
using namespace std;
int getDays(int);
double getDepartureTime();
double getArrivalTime(double);
double airFees(double);
double carRentalFees(double);
double getMilesDriven(double);
double getParkingTotal(double,double);
double getParkingSpent(double,double);
double getTaxiFees(double,double);
double employeeHotelExpense(double,double);
double getHotelExpense(double,double);
double getMealExpenses(double,double);
void timeEquivalent();
double breakFastFee = 0;
int main()
{
int days=0, amount=0, departure_conference=0, departure_home=0,time = 0;
double airFee=0,taxiFeesAllowed,parkingAllowed = 0,employeeHotelExpense = 0,employeeTaxiFees = 0, milesDriven=0,
parkingFees=0, taxiFees=0, yes=0,arrivalTime = 0;
double carRentalFee = 0, hotel_expenses=0,departureTime = 0, meals=0,employeeMealExpenses = 0, parkingSpent = 0,allowableHotelExpense = 0
,allowedMealTotal = 0,mealsSpent = 0;
char employee[40];
//timeEquivalent();
//cout << "What Time Did You Arrive " <<endl;
//cin >>time;
days = getDays(days);
timeEquivalent();
departureTime = getDepartureTime();
arrivalTime = getArrivalTime(arrivalTime);
airFee = airFees(airFee);
carRentalFee = carRentalFees(carRentalFee);
milesDriven = getMilesDriven(milesDriven);
parkingAllowed = 6 * days;
parkingSpent = getParkingSpent(parkingSpent,days);
taxiFeesAllowed = days * 10;
employeeTaxiFees = getTaxiFees(taxiFees,days);
allowableHotelExpense = 90 * days;
employeeHotelExpense = getHotelExpense(employeeHotelExpense, days);
employeeMealExpenses = getMealExpenses(departureTime,arrivalTime);
cout << employeeMealExpenses <<endl;
return 0;
}
int getDays(int days)
{
cout << " How many Days did you stay on the trip " <<endl;
cin >> days;
while(days < 0)
{
cout <<"Please enter a value greater than 0 :D " <<endl;
cin >> days;
}
return days;
}
double getDepartureTime()
{
double departureTime;
cout << "Please Refer To The Menu Above and enter the time of departure in military\n";
cout << "Time. For example if you departed at 7:30 enter 0730\n\n";
cin >> departureTime;
return departureTime;
}
double getArrivalTime(double arrivalTime)
{
cout << "Please refer to the menu above and enter the time you arrived back home in\n";
cout <<" military format\n";
cin >> arrivalTime;
return arrivalTime;
}
double airFees(double airfee)
{
cout << " How Much Were Your Air Fees " <<endl;
cin >> airfee;
while(airfee < 0)
{
cout <<" Please enter a value greater than 0 :D " <<endl;
cin >> airfee;
}
return airfee;
}
double carRentalFees(double carRentalFee)
{
cout << " How Much were Your Car Rental Fees " <<endl;
cin >> carRentalFee;
while(carRentalFee < 0)
{
cout <<"Please enter a value of 0 or greater :D " <<endl;
cin >> carRentalFee;
}
return carRentalFee;
}
double getMilesDriven(double milesDriven)
{
const double mileRate = 0.27;
cout << " How many miles did you drive, please enter 0 if a private vehicle was not used " <<endl;
cin >> milesDriven;
while(milesDriven < 0)
{
cout << " Please Enter 0 or Greater:)"<<endl;
cin >> milesDriven;
}
return mileRate * milesDriven;
}
double getParkingSpent(double parkingSpent, double days)
{
cout << " How Much Did You Spend on Parking " <<endl;
cin >> parkingSpent;
while(parkingSpent < 0)
{
cout << "Please Enter an Amount of 0 or Greater "<<endl;
cin >> parkingSpent;
}
return parkingSpent*days;
}
double getTaxiFees(double taxiFees,double days)
{
cout << " Please Enter The Amount of Taxi Fees Please " <<endl;
cin >> taxiFees;
while(taxiFees < 0)
{
cout << "Please Enter an Amount of 0 or Greater "<<endl;
cin >> taxiFees;
}
return taxiFees * days;
}
double getHotelExpense(double employeeHotelExpense,double days)
{
cout << " How Much Were Your Hotel Expenses " <<endl;
cin >> employeeHotelExpense;
while(employeeHotelExpense < 0)
{
cout << "Please Enter a Amount of 0 or Greater "<<endl;
cin >> employeeHotelExpense;
}
return employeeHotelExpense * days;
}
double getMealExpenses(double departureTime,double arrivalTime)
{
static double breakFastFee = 0 ;
static double lunchFee = 0 ;
static double dinnerFee = 0 ;
int numberOfDays = 2 ;
double total = 0;
for(int days =1;days <=numberOfDays;days++)
{
if ( days < numberOfDays && departureTime > 000 && departureTime < 700)
{
cout << "Please Enter Your breakfast cost"<<endl;
cin >> breakFastFee;
cout << " Please Enter Your Lunch Cost " <<endl;
cin >>lunchFee;
cout << "Please Enter Your Dinner Cost " <<endl;
cin >> dinnerFee;
}
if (days < numberOfDays && departureTime > 700 && departureTime <=1200)
{
cout << "Please Enter Your Lunch Cost"<<endl;
cin >> lunchFee;
cout << "Please Enter Your Dinner cost "<<endl;
cin >> dinnerFee;
}
if(days < numberOfDays && departureTime > 1201 && departureTime <= 1800)
{
cout << "Enter The Cost of Dinner " <<endl;
cin >> dinnerFee;
}
if(days == numberOfDays && arrivalTime > 800 && arrivalTime<=1300)
{
cout <<"Enter The Cost of Breakfast " <<endl;
cin >> breakFastFee;
}
if(days == numberOfDays && arrivalTime > 1301 && arrivalTime <= 1900)
{
cout << "Enter The Cost of Breakfast "<<endl;
cin >> breakFastFee;
cout << " Enter The Cost of Lunch " <<endl;
cin >> lunchFee;
}
if(days == numberOfDays && arrivalTime > 1901)
{
cout << "Enter The Cost of Breakfast " <<endl;
cin >> breakFastFee;
cout << " Enter The Cost of Lunch " <<endl;
cin >> lunchFee;
cout << "Enter The Cost of Dinner " <<endl;
cin >> dinnerFee;
}
total+=breakFastFee + lunchFee + dinnerFee;
}
return total;
}
void timeEquivalent()
{
cout <<"Regular Time " << "\t\t" <<"Military Time \n";
cout <<"************" << "\t\t" <<"***************"<<endl;
cout <<"Midnight " << "\t\t" <<"0000 \n";
cout <<"1:00a.m. " << "\t\t" <<"0100 \n";
cout <<"2:00a.m. " << "\t\t" <<"0200 \n";
cout <<"3:00a.m. " << "\t\t" <<"0300 \n";
cout <<"4:00a.m. " << "\t\t" <<"0400 \n";
cout <<"5:00a.m. " << "\t\t" <<"0500 \n";
cout <<"6:00a.m. " << "\t\t" <<"0600 \n";
cout <<"7:00a.m. " << "\t\t" <<"0700 \n";
cout <<"8:00a.m. " << "\t\t" <<"0800 \n";
cout <<"9:00a.m. " << "\t\t" <<"0900 \n";
cout <<"10:00a.m." << "\t\t" <<"1000 \n";
cout <<"11:00a.m." << "\t\t" <<"1100 \n";
cout <<"12:00p.m." << "\t\t" <<"1200 \n";
cout <<"1:00p.m. " << "\t\t" <<"1300 \n";
cout <<"2:00p.m. " << "\t\t" <<"1400 \n";
cout <<"3:00p.m. " << "\t\t" <<"1500 \n";
cout <<"4:00p.m. " << "\t\t" <<"1600 \n";
cout <<"5:00p.m. " << "\t\t" <<"1700 \n";
cout <<"6:00p.m. " << "\t\t" <<"1800 \n";
cout <<"7:00p.m. " << "\t\t" <<"1900 \n";
cout <<"8:00p.m. " << "\t\t" <<"2000 \n";
cout <<"9:00p.m. " << "\t\t" <<"2100 \n";
cout <<"10:00p.m." << "\t\t" <<"2200 \n";
cout <<"11:00p.m." << "\t\t" <<"2300 \n";
cout <<"Midnight " << "\t\t" <<"0000 \n";
}
有人可以告诉我什么是错的。如果您测试出来，请使用0600作为出发时间，使用0900作为到达时间。
答案 0 :(得分：3)
此代码中存在多个问题。一，在像getDays这样的函数返回 天数，你不需要传递 作为参数进入方法的天数。
此外，由于您希望days的值大于0，因此您应该检查while循环中是否days <= 0。如果天数设置为0，您当前的状况days < 0将为false。
getDays最好写成：
int getDays()
{
int days = 0;
cout << " How many Days did you stay on the trip " <<endl;
cin >> days;
while(days <= 0)
{
cout <<"Please enter a value greater than 0 :D " <<endl;
cin >> days;
}
return days;
}
此外，在getMealExpenses中，似乎没有理由将breakFastFee，lunchFee和dinnerFee声明为static。这可能是您询问问题的原因，因为在第一次调用getMealExpenses后，它们永远不会重新初始化为0.
最后，整齐格式的代码更有可能获得有用的响应，因为它更容易阅读： - ）
答案 1 :(得分：0)
我认为这是因为在每次执行之前你没有将breakFastFee, lunchFee, dinnerFee变量重置为0。因此，当total+=breakFastFee + lunchFee + dinnerFee;命中时，它将添加上一次迭代的值。