使用C++编译一个停车场管理系统，其中有汽车信息，普通用户，管理用户三个模块，普通用户只能查看车辆信息，管理用户能添加修改删除车辆信息

好的，下面是一个简单的停车场管理系统的C++代码实现。

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

using namespace std;

class Car {
public:
    Car(string license, string brand, string color, string type) :
        m_license(license), m_brand(brand), m_color(color), m_type(type) {}

    string getLicense() const { return m_license; }
    string getBrand() const { return m_brand; }
    string getColor() const { return m_color; }
    string getType() const { return m_type; }

    void setBrand(string brand) { m_brand = brand; }
    void setColor(string color) { m_color = color; }
    void setType(string type) { m_type = type; }

private:
    string m_license;   // 车牌号
    string m_brand;     // 车品牌
    string m_color;     // 车颜色
    string m_type;      // 车类型
};

class User {
public:
    User(string username, string password, bool isAdmin) :
        m_username(username), m_password(password), m_isAdmin(isAdmin) {}

    bool isAdmin() const { return m_isAdmin; }
    bool checkPassword(string password) const { return m_password == password; }

private:
    string m_username;  // 用户名
    string m_password;  // 密码
    bool m_isAdmin;     // 是否是管理员
};

class ParkingLot {
public:
    void addCar(Car car) { m_cars.push_back(car); }
    void removeCar(string license) {
        for (auto it = m_cars.begin(); it != m_cars.end(); ++it) {
            if (it->getLicense() == license) {
                m_cars.erase(it);
                break;
            }
        }
    }
    Car* findCar(string license) {
        for (auto& car : m_cars) {
            if (car.getLicense() == license) {
                return &car;
            }
        }
        return nullptr;
    }
    vector<Car>& getCars() { return m_cars; }
private:
    vector<Car> m_cars; // 存储车辆信息
};

int main() {
    ParkingLot parkingLot;
    User user1("user1", "123", false); // 普通用户
    User user2("admin", "admin", true); // 管理员

    // 添加一些车辆信息
    parkingLot.addCar(Car("粤A12345", "奔驰", "黑色", "轿车"));
    parkingLot.addCar(Car("粤B67890", "宝马", "白色", "SUV"));
    parkingLot.addCar(Car("粤C24680", "奥迪", "红色", "轿车"));
    parkingLot.addCar(Car("粤D13579", "大众", "蓝色", "轿车"));

    while (true) {
        cout << "请输入用户名和密码：" << endl;
        string username, password;
        cin >> username >> password;

        User* user = nullptr;
        if (username == user1.getUsername() && user1.checkPassword(password)) {
            user = &user1;
        } else if (username == user2.getUsername() && user2.checkPassword(password)) {
            user = &user2;
        } else {
            cout << "用户名或密码错误，请重新输入！" << endl;
            continue;
        }

        cout << "欢迎使用停车场管理系统，您的权限为" << (user->isAdmin() ? "管理员" : "普通用户") << endl;

        while (true) {
            cout << "请选择操作：" << endl;
            if (user->isAdmin()) {
                cout << "1.添加车辆信息" << endl;
                cout << "2.修改车辆信息" << endl;
                cout << "3.删除车辆信息" << endl;
            }
            cout << "4.查看车辆信息" << endl;
            cout << "5.退出" << endl;

            int choice;
            cin >> choice;

            if (choice == 1 && user->isAdmin()) { // 添加车辆信息
                string license, brand, color, type;
                cout << "请输入车牌号、车品牌、车颜色、车类型：" << endl;
                cin >> license >> brand >> color >> type;
                parkingLot.addCar(Car(license, brand, color, type));
                cout << "添加成功！" << endl;
            } else if (choice == 2 && user->isAdmin()) { // 修改车辆信息
                string license, brand, color, type;
                cout << "请输入要修改的车牌号：" << endl;
                cin >> license;
                Car* car = parkingLot.findCar(license);
                if (car == nullptr) {
                    cout << "未找到该车辆！" << endl;
                } else {
                    cout << "请输入新的车品牌、车颜色、车类型：" << endl;
                    cin >> brand >> color >> type;
                    car->setBrand(brand);
                    car->setColor(color);
                    car->setType(type);
                    cout << "修改成功！" << endl;
                }
            } else if (choice == 3 && user->isAdmin()) { // 删除车辆信息
                string license;
                cout << "请输入要删除的车牌号：" << endl;
                cin >> license;
                parkingLot.removeCar(license);
                cout << "删除成功！" << endl;
            } else if (choice == 4) { // 查看车辆信息
                cout << "车牌号\t车品牌\t车颜色\t车类型" << endl;
                for (auto& car : parkingLot.getCars()) {
                    cout << car.getLicense() << "\t" << car.getBrand() << "\t" << car.getColor() << "\t" << car.getType() << endl;
                }
            } else if (choice == 5) { // 退出
                return 0;
            } else {
                cout << "输入有误，请重新输入！" << endl;
            }
        }
    }

    return 0;
}

上述代码实现了停车场管理系统的基本功能，包括添加车辆信息、修改车辆信息、删除车辆信息和查看车辆信息等。普通用户只能查看车辆信息，而管理员可以添加、修改和删除车辆信息。