用c加加写一个基类：过境人员，派生类：游客、卡车司机、商务旅客的长代码，要求用到封装 继承和多态

以下是基类和派生类的代码：

// 过境人员基类
class TransitPerson {
protected:
    string name;
    int age;
public:
    TransitPerson(string n, int a) : name(n), age(a) {}
    virtual void showInfo() {
        cout << "Name: " << name << endl;
        cout << "Age: " << age << endl;
    }
};

// 游客派生类
class Tourist : public TransitPerson {
private:
    string destination;
public:
    Tourist(string n, int a, string d) : TransitPerson(n, a), destination(d) {}
    void showInfo() {
        cout << "Tourist Information:" << endl;
        TransitPerson::showInfo();
        cout << "Destination: " << destination << endl;
    }
};

// 卡车司机派生类
class TruckDriver : public TransitPerson {
private:
    string licensePlate;
public:
    TruckDriver(string n, int a, string l) : TransitPerson(n, a), licensePlate(l) {}
    void showInfo() {
        cout << "Truck Driver Information:" << endl;
        TransitPerson::showInfo();
        cout << "License Plate: " << licensePlate << endl;
    }
};

// 商务旅客派生类
class BusinessTraveler : public TransitPerson {
private:
    string company;
public:
    BusinessTraveler(string n, int a, string c) : TransitPerson(n, a), company(c) {}
    void showInfo() {
        cout << "Business Traveler Information:" << endl;
        TransitPerson::showInfo();
        cout << "Company: " << company << endl;
    }
};

这里使用了封装、继承和多态的概念。基类 `TransitPerson` 封装了过境人员的基本信息，派生类 `Tourist`、`TruckDriver` 和 `BusinessTraveler` 继承了基类，并重写了 `showInfo()` 方法，实现了多态。