用c++写一个汉堡购物

在C++中编写一个简单的汉堡购物程序，可以模拟顾客选择各种配料来定制汉堡的过程。这里我们创建一个基础的命令行界面示例：

#include <iostream>
#include <string>

// 定义汉堡及其配料
enum class BurgerPart {
    BUN,
    PATTY,
    CHEESE,
    LETTUCE,
    TOMATO,
    ONION,
    PICKLE
};

// 汉堡类，存储价格和基本信息
class Burger {
public:
    double getPrice(BurgerPart part) {
        switch (part) {
            case BurgerPart::BUN: return 1.0;
            case BurgerPart::PATTY: return 2.5;
            case BurgerPart::CHEESE: return 0.5;
            // ...其他配料的价格...
            default: return 0.0; // 默认值
        }
    }

    void addPart(BurgerPart part) {
        prices[static_cast<int>(part)] += 1;
    }

private:
    std::vector<double> prices; // 存储每个配料的价格
};

int main() {
    Burger burger;
    BurgerPart choice;

    std::cout << "Welcome to the Burger Shop!\n";
    while (true) {
        std::cout << "Choose a part (BUN, PATTY, CHEESE, etc.) or type 'quit' to exit: ";
        std::cin >> choice;

        if (choice == BurgerPart::QUIT) break;

        std::cout << "You've chosen " << static_cast<char>(choice) << ".\n";
        burger.addPart(choice);
        std::cout << "The total cost so far is $" << burger.getPrice(choice) << ".\n";
    }

    std::cout << "Your final bill is $" << calculateTotalCost(burger.prices) << ".\n";
    return 0;
}

double calculateTotalCost(const std::vector<double>& prices) {
    double total = 0;
    for (auto price : prices) {
        total += price;
    }
    return total;
}

在这个例子中，用户可以选择汉堡的各个部分，并实时看到总费用。当输入"quit"时，程序结束。`calculateTotalCost`函数用于计算所有配料的总价。