用C++代码写一个火车票管理系统

好的，以下是一个简单的火车票管理系统的C++代码：

#include <iostream>
#include <vector>
#include <string>
using namespace std;

class Train {
private:
    string trainNumber;     //车次
    string startStation;    //起点站
    string endStation;      //终点站
    string departureTime;   //出发时间
    int seatNum;            //座位数
    int ticketNum;          //余票数
public:
    Train(string num, string start, string end, string time, int seat, int ticket) {
        trainNumber = num;
        startStation = start;
        endStation = end;
        departureTime = time;
        seatNum = seat;
        ticketNum = ticket;
    }
    void display() {   //显示车次信息
        cout << trainNumber << "\t" << startStation << "\t" << endStation << "\t" << departureTime << "\t" << seatNum << "\t" << ticketNum << endl;
    }
    string getTrainNumber() {  //获取车次
        return trainNumber;
    }
    string getStartStation() {  //获取起点站
        return startStation;
    }
    string getEndStation() {  //获取终点站
        return endStation;
    }
    string getDepartureTime() {  //获取出发时间
        return departureTime;
    }
    int getSeatNum() {  //获取座位数
        return seatNum;
    }
    int getTicketNum() {  //获取余票数
        return ticketNum;
    }
    void setTicketNum(int num) {  //设置余票数
        ticketNum = num;
    }
};

class TrainManager {
private:
    vector<Train> trainList;  //存放火车信息的列表
public:
    TrainManager() {}
    void addTrain(Train train) {  //添加火车信息
        trainList.push_back(train);
    }
    void displayAllTrain() {  //显示所有车次信息
        cout << "车次\t起点站\t终点站\t出发时间\t座位数\t余票数" << endl;
        for (int i = 0; i < trainList.size(); i++) {
            trainList[i].display();
        }
    }
    Train* searchTrain(string num) {  //查找车次信息
        for (int i = 0; i < trainList.size(); i++) {
            if (trainList[i].getTrainNumber() == num) {
                return &trainList[i];
            }
        }
        return NULL;
    }
};

int main() {
    TrainManager trainManager;

    //添加火车信息
    trainManager.addTrain(Train("G1234", "北京", "上海", "08:00", 100, 80));
    trainManager.addTrain(Train("G5678", "上海", "广州", "10:00", 120, 100));
    trainManager.addTrain(Train("D1234", "北京", "上海", "09:00", 80, 60));
    trainManager.addTrain(Train("D5678", "上海", "广州", "11:00", 100, 80));

    //显示所有车次信息
    trainManager.displayAllTrain();

    //查询车次信息
    string num;
    cout << "请输入要查询的车次：";
    cin >> num;
    Train* train = trainManager.searchTrain(num);
    if (train != NULL) {
        cout << "车次\t起点站\t终点站\t出发时间\t座位数\t余票数" << endl;
        train->display();
    }
    else {
        cout << "没有找到该车次！" << endl;
    }

    return 0;
}

代码实现的功能包括：添加火车信息、显示所有车次信息、查询车次信息。运行程序后，可以在控制台输入要查询的车次，程序会输出该车次的详细信息。