航空机票订票系统设计 （1）设计每条航线所涉及的信息，如起点终点站名、航班号、飞机号、飞机周日（星期几）、乘员定额、余票量、订定票的客户名单（包括姓名、订票量、舱位等级1，2或3）等； （2）结合基本操作的单链表、队列、二叉树等数据结构以及排序算法，设计实现机票订票系统的查询、订票、退票等功能； （3）设计并实现人机交互友好的界面或菜单。请写出C++完整代码，

以下是一个简单的C++代码示例，实现了航空机票订票系统的查询、订票、退票功能，并设计了一个基本的人机交互界面：

#include <iostream>
#include <string>
#include <list>
#include <queue>
#include <map>
#include <algorithm>

using namespace std;

// 航班信息结构体
struct FlightInfo {
    string startStation;
    string endStation;
    string flightNumber;
    string aircraftNumber;
    int weekday;
    int passengerQuota;
    int remainingTickets;
    map<string, pair<int, int>> passengerList; // 客户名单，<姓名, <订票量, 舱位等级>>
};

// 航空机票订票系统类
class AirlineTicketSystem {
private:
    list<FlightInfo> flightList; // 航班信息列表

public:
    // 查询航班信息
    void queryFlightInfo(string startStation, string endStation) {
        for (const auto& flight : flightList) {
            if (flight.startStation == startStation && flight.endStation == endStation) {
                cout << "航班号：" << flight.flightNumber << endl;
                cout << "飞机号：" << flight.aircraftNumber << endl;
                cout << "飞机周日：" << flight.weekday << endl;
                cout << "乘员定额：" << flight.passengerQuota << endl;
                cout << "余票量：" << flight.remainingTickets << endl;
                cout << "客户名单：" << endl;
                for (const auto& passenger : flight.passengerList) {
                    cout << "姓名：" << passenger.first << "，订票量：" << passenger.second.first << "，舱位等级：" << passenger.second.second << endl;
                }
                return;
            }
        }
        cout << "未找到符合条件的航班信息" << endl;
    }

    // 订票
    void bookTicket(string flightNumber, string passengerName, int ticketQuantity, int cabinLevel) {
        for (auto& flight : flightList) {
            if (flight.flightNumber == flightNumber && flight.remainingTickets >= ticketQuantity) {
                flight.remainingTickets -= ticketQuantity;
                flight.passengerList[passengerName] = make_pair(ticketQuantity, cabinLevel);
                cout << "订票成功！" << endl;
                return;
            }
        }
        cout << "订票失败，请检查航班号和余票量" << endl;
    }

    // 退票
    void cancelTicket(string flightNumber, string passengerName) {
        for (auto& flight : flightList) {
            if (flight.flightNumber == flightNumber) {
                auto it = flight.passengerList.find(passengerName);
                if (it != flight.passengerList.end()) {
                    int ticketQuantity = it->second.first;
                    flight.remainingTickets += ticketQuantity;
                    flight.passengerList.erase(it);
                    cout << "退票成功！" << endl;
                    return;
                }
            }
        }
        cout << "退票失败，请检查航班号和乘客姓名" << endl;
    }

    // 添加航班信息
    void addFlightInfo(FlightInfo flightInfo) {
        flightList.push_back(flightInfo);
    }
};

// 主函数
int main() {
    AirlineTicketSystem ticketSystem;

    // 添加航班信息
    FlightInfo flight1 = {"Beijing", "Shanghai", "CA123", "B777", 1, 200, 180, {}};
    FlightInfo flight2 = {"Shanghai", "Guangzhou", "MU456", "A320", 2, 150, 120, {}};
    FlightInfo flight3 = {"Beijing", "Guangzhou", "CZ789", "B737", 3, 250, 220, {}};
    ticketSystem.addFlightInfo(flight1);
    ticketSystem.addFlightInfo(flight2);
    ticketSystem.addFlightInfo(flight3);

    // 人机交互菜单
    while (true) {
        cout << "请选择操作：" << endl;
        cout << "1. 查询航班信息" << endl;
        cout << "2. 订票" << endl;
        cout << "3. 退票" << endl;
        cout << "4. 退出" << endl;

        int choice;
        cin >> choice;

        if (choice == 1) {
            cout << "请输入起点站名和终点站名：" << endl;
            string startStation, endStation;
            cin >> startStation >> endStation;
            ticketSystem.queryFlightInfo(startStation, endStation);
        } else if (choice == 2) {
            cout << "请输入航班号、乘客姓名、订票量和舱位等级：" << endl;
            string flightNumber, passengerName;
            int ticketQuantity, cabinLevel;
            cin >> flightNumber >> passengerName >> ticketQuantity >> cabinLevel;
            ticketSystem.bookTicket(flightNumber, passengerName, ticketQuantity, cabinLevel);
        } else if (choice == 3) {
            cout << "请输入航班号和乘客姓名：" << endl;
            string flightNumber, passengerName;
            cin >> flightNumber >> passengerName;
            ticketSystem.cancelTicket(flightNumber, passengerName);
        } else if (choice == 4) {
            break;
        } else {
            cout << "无效的操作，请重新选择！" << endl;
        }
    }

    return 0;
}

请注意，以上代码仅为一个简化的示例，实际情况中可能需要根据具体需求进行一些调整和优化。希望对你的设计有所帮助！