C++学习，第三十三课

#include<iostream>
#include<string>

class Company
{
public:
    Company(std::string theName);
    virtual void print();

protected:
    std::string name;
};

class TecCompany :public Company
{
public:
    TecCompany(std::string name, std::string theproduct);
    virtual void print();
private:
    std::string product;
};

Company::Company(std::string theName)
{
    name=theName;
}

TecCompany::TecCompany(std::string theName, std::string product) :Company(theName)
{
    this->product = product;
}

void Company::print()
{
    std::cout << "我是" << name << "公司\n\n";
}

void TecCompany::print()
{
    std::cout << "我是" << name << "公司，我的产品是：" << product<<"\n\n";
}

int main()
{
    Company *company = new Company("Microsoft");
    company->print();
    delete company;
    company = NULL;

    company = new TecCompany("Apple","iPad");
    company->print();
    delete company;
    company = NULL;

    system("pause");
    return 0;
}