所以我正在尝试编写一个程序，该程序将一组书的总成本给定一定值，然后循环回到开头，以获得一组新书的总数，直到用户告诉它为止停。在课程结束时，将显示所有书籍的总费用。我很难写这个，谢谢你对此有任何帮助，对于我仍在学习的凌乱代码感到抱歉。
此处列出的代码：
#include <iostream>
using namespace std;
const float kReqNew = 0.90;
const float kReqOld = 0.65;
const float kOptNew = 0.40;
const float kOptOld = 0.20;
class Book {
private:
float singleCost_;
int NeworOld_;
int ReqorOpt_;
int TotalBooksNeeded_;
int BookNumber_;
int NumOnHand_;
int prospectiveEnrole;
double totalCost_;
public:
void buildData();
void determineBooks();
void totalCosts();
void layOut();
void totalCostAdd();
};
void Book::buildData() {
cout << "Please enter: " << endl;
cout << "Book Number:";
cin >> BookNumber_;
cout << "Book Price: ";
cin >> singleCost_;
cout << "How many are in stock: ";
cin >> NumOnHand_;
cout << "Prospective Enrolment: ";
cin >> prospectiveEnrole;
cout << "Required(1), Optional(0)";
cin >> ReqorOpt_;
cout << "New(1), Old(0): ";
cin >> NeworOld_;
}
void Book::determineBooks(){
if(NeworOld_ == 1 && ReqorOpt_ == 1){
TotalBooksNeeded_ = NumOnHand_ * kReqNew;
}
else if(NeworOld_ == 1 && ReqorOpt_ == 0){
TotalBooksNeeded_ = NumOnHand_ * kOptNew;
}
else if(NeworOld_ == 0 && ReqorOpt_ == 1){
TotalBooksNeeded_ = NumOnHand_ * kReqOld;
}
else if(NeworOld_ == 0 && ReqorOpt_ == 0){
TotalBooksNeeded_ = NumOnHand_ * kOptOld;
}
cout << "Total Number of Books Needed: " << "$" << TotalBooksNeeded_ << endl;
}
void Book::totalCosts(){
totalCost_ = TotalBooksNeeded_ * singleCost_;
cout << "The total cost of the books is: " << totalCost_ << endl;
}
void Book::layOut(){
cout << BookNumber_<<endl;
cout << "$" << singleCost_ << endl;
cout << NumOnHand_ << endl;
}
void Book::totalCostAdd(){
double* newTotalCost;
*newTotalCost += totalCost_;
cout << newTotalCost << endl;
}
int main() {
Book books;
int exitNum;
cout << "\t\t\t ****************\n" << "\t\t\t Book Calculator\n" << "\t\t\t ****************\n";
do{
cout << "*******************************************\n";
books.buildData();
cout << "*******************************************\n";
books.layOut();
cout << "*******************************************\n";
books.determineBooks();
books.totalCosts();
cout << "*******************************************\n";
cout << "Would you like to continue: Yes(1), No(0)" << endl;
cin >> exitNum;
cout << "*******************************************\n";
books.totalCostAdd();
} while(exitNum != 0);
}
再次感谢您的帮助。