създаване на клас със функции - пример

// CarRateApp2.cpp : This file contains the 'main' function. Program execution begins and ends there. // #include <iostream> #include <string> class Car { public: std:: string brand; std:: string color; int engineVol ; double price; Car( std::string brandIn , std::string colorIn , double priceIn , int engineVolIn ) { brand = brandIn ; color = colorIn ; price = priceIn ; engineVol = engineVolIn ; }; bool WriteCar ( ) { std:: cout << "Hello. The car stats are as follows:\n"; std:: cout << "\ nModel : " << brand; std:: cout << "\ nColor : " << color; std:: cout << "\ nEngine volume: " << engineVol <<" liters"; std:: cout << "\ nprice : $" << price; return true; }; double PriceDiff ( double budget) { double res = price - budget; if (res > 0){ std:: cout << "\ nYou don't have enough money. You need " << res << " more to buy this car"; } else { std:: cout << "\ nYou can buy the car. You will have $" << res << " left."; } return res; }; void CheckEngine ( Car otherCar ) { if ( engineVol > otherCar.engineVol ) { std:: cout << "\ nThe car " << brand << " has bigger engine volume"; } else if ( engineVol < otherCar.engineVol ) { std:: cout << "\ nThe car " << otherCar.brand << " has bigger engine volume"; } else { std:: cout << "\ nBoth cars have the same brand!"; } }; }; int main( ) { std:: string carModel ; char carModelChar [ 200]; std:: string carColor ; int carEngineVol ; double carPrice ; std:: cout << "What is the model of the car?: \n"; std:: cin.getline (carModelChar,200); carModel = carModelChar ; std:: cout << "What is the color?: \n"; std:: cin >> carColor ; std:: cout << "What is the price?: \n"; std:: cin >> carPrice ; std:: cout << carPrice << "\ nWhat is the engine volume of the car?: \n"; std:: cin >> carEngineVol ; Car homeCar ( carModel,carColor ,carPrice,carEngineVol ); Car friendCar ( "Opel Vectra", carColor , carPrice , carEngineVol+100); homeCar.WriteCar (); homeCar.PriceDiff (200.0); homeCar.CheckEngine ( friendCar ); } // Run program: Ctrl + F5 or Debug > Start Without Debugging menu // Debug program: F5 or Debug > Start Debugging menu // Tips for Getting Started: // 1. Use the Solution Explorer window to add/manage files // 2. Use the Team Explorer window to connect to source control // 3. Use the Output window to see build output and other messages // 4. Use the Error List window to view errors // 5. Go to Project > Add New Item to create new code files, or Project > Add Existing Item to add existing code files to the project // 6. In the future, to open this project again, go to File > Open > Project and select the . sln file Резултат: