写一个c++难度中等的酒店管理系统c++

好的，以下是一个简单的酒店管理系统的C++代码，包括添加客房、预订客房、退房、查询空房等功能。

#include <iostream>
#include <string>
#include <vector>

using namespace std;

// 客房类
class Room {
public:
    Room(int roomNum, string roomType, double price, bool isBooked)
        : mRoomNum(roomNum), mRoomType(roomType), mPrice(price), mIsBooked(isBooked) {}

    int getRoomNum() const { return mRoomNum; }
    string getRoomType() const { return mRoomType; }
    double getPrice() const { return mPrice; }
    bool getIsBooked() const { return mIsBooked; }
    void setIsBooked(bool isBooked) { mIsBooked = isBooked; }

private:
    int mRoomNum;
    string mRoomType;
    double mPrice;
    bool mIsBooked;
};

// 酒店类
class Hotel {
public:
    Hotel() {}

    // 添加客房
    void addRoom(Room room) {
        mRooms.push_back(room);
    }

    // 预订客房
    void bookRoom(int roomNum) {
        for (auto& room : mRooms) {
            if (room.getRoomNum() == roomNum) {
                if (room.getIsBooked()) {
                    cout << "该客房已被预订，请选择其他客房。" << endl;
                } else {
                    room.setIsBooked(true);
                    cout << "客房预订成功。" << endl;
                }
                return;
            }
        }
        cout << "没有找到该客房，请重新输入。" << endl;
    }

    // 退房
    void checkout(int roomNum) {
        for (auto& room : mRooms) {
            if (room.getRoomNum() == roomNum) {
                if (!room.getIsBooked()) {
                    cout << "该客房未被预订，无法退房。" << endl;
                } else {
                    room.setIsBooked(false);
                    cout << "退房成功。" << endl;
                }
                return;
            }
        }
        cout << "没有找到该客房，请重新输入。" << endl;
    }

    // 查询空房
    void searchEmptyRooms() const {
        cout << "当前空闲客房列表：" << endl;
        for (auto& room : mRooms) {
            if (!room.getIsBooked()) {
                cout << "房间号：" << room.getRoomNum() << "，类型：" << room.getRoomType() << "，价格：" << room.getPrice() << endl;
            }
        }
    }

private:
    vector<Room> mRooms;
};

int main() {
    Room room1(101, "标准双人间", 300.0, false);
    Room room2(102, "豪华双人间", 500.0, false);
    Room room3(201, "标准单人间", 200.0, true);
    Room room4(202, "商务单人间", 250.0, false);

    Hotel hotel;
    hotel.addRoom(room1);
    hotel.addRoom(room2);
    hotel.addRoom(room3);
    hotel.addRoom(room4);

    int choice;
    int roomNum;
    while (true) {
        cout << "欢迎使用酒店管理系统，请选择操作：" << endl;
        cout << "1. 预订客房" << endl;
        cout << "2. 退房" << endl;
        cout << "3. 查询空房" << endl;
        cout << "4. 退出系统" << endl;
        cin >> choice;

        switch (choice) {
            case 1:
                cout << "请输入需要预订的客房号：" << endl;
                cin >> roomNum;
                hotel.bookRoom(roomNum);
                break;
            case 2:
                cout << "请输入需要退房的客房号：" << endl;
                cin >> roomNum;
                hotel.checkout(roomNum);
                break;
            case 3:
                hotel.searchEmptyRooms();
                break;
            case 4:
                cout << "感谢使用酒店管理系统，再见！" << endl;
                return 0;
            default:
                cout << "无效的选择，请重新输入。" << endl;
                break;
        }
    }

    return 0;
}