写一个程序,定义抽象基类Container,由它派生出3个派生类:Sphere(球体) Cylinder(圆柱体)、Cube(正方体)。用虚函数分别计算几种图形的表面积和体积。

好的，下面是代码实现：

#include<iostream>
using namespace std;

class Container {
public:
    virtual double getVolume() = 0;
    virtual double getArea() = 0;
};

class Sphere : public Container {
private:
    double radius;
public:
    Sphere(double r) : radius(r) {}
    virtual double getVolume() {
        return 4.0 / 3.0 * 3.1415926 * radius * radius * radius;
    }
    virtual double getArea() {
        return 4.0 * 3.1415926 * radius * radius;
    }
};

class Cylinder : public Container {
private:
    double radius, height;
public:
    Cylinder(double r, double h) : radius(r), height(h) {}
    virtual double getVolume() {
        return 3.1415926 * radius * radius * height;
    }
    virtual double getArea() {
        return 2.0 * 3.1415926 * radius * height + 2.0 * 3.1415926 * radius * radius;
    }
};

class Cube : public Container {
private:
    double side;
public:
    Cube(double s) : side(s) {}
    virtual double getVolume() {
        return side * side * side;
    }
    virtual double getArea() {
        return 6.0 * side * side;
    }
};

int main() {
    Container* c1 = new Sphere(5.0);
    Container* c2 = new Cylinder(5.0, 10.0);
    Container* c3 = new Cube(5.0);

    cout << "Sphere volume: " << c1->getVolume() << endl;
    cout << "Sphere area: " << c1->getArea() << endl;

    cout << "Cylinder volume: " << c2->getVolume() << endl;
    cout << "Cylinder area: " << c2->getArea() << endl;

    cout << "Cube volume: " << c3->getVolume() << endl;
    cout << "Cube area: " << c3->getArea() << endl;

    delete c1;
    delete c2;
    delete c3;

    return 0;
}

这个程序定义了一个抽象基类Container，它有两个纯虚函数getVolume和getArea，分别用来计算图形的体积和表面积。然后分别派生出三个类Sphere、Cylinder和Cube，实现这两个纯虚函数。最后在主函数中创建这三个类的对象，分别调用其计算体积和表面积的函数进行输出。