已有抽象类shape定义如下，该类提供三个纯虚函数；显示数据成员、返回面积和返回体积。 Class Shape { virtual void showData()=0; virtual double reArea()=0; virtual double reVolume()=0; }; 以Shape为顶层基类，派生TwoDimShape（二维图形）和ThreeShape（三维图形）两个类，它们增加了有关的数据成员（自己设定，各自不少于2个），但没有成员函数的实现。 第三层派生具体的图形类。TwoDimShape类派生Circle（圆）、Elipse（椭圆）、Rectangle（矩形）和Triangle（三角形）等类。ThreeShape类派生Ball（球体）、Cylinder（圆柱体）、RectangularParallelepiped（长方体）等类。 在主函数测试中使用多态方式调用不同对象的求面积和体积等函数。

好的，我了解了你的问题。下面是一个可能的解决方案：

首先，我们定义TwoDimShape和ThreeDimShape类，以及它们的成员变量。这里我们假设二维图形只有长度和宽度，三维图形只有长度、宽度和高度。

class TwoDimShape : public Shape {
protected:
    double length;
    double width;
public:
    virtual void showData() = 0;
    virtual double reArea() = 0;
};

class ThreeDimShape : public Shape {
protected:
    double length;
    double width;
    double height;
public:
    virtual void showData() = 0;
    virtual double reArea() = 0;
    virtual double reVolume() = 0;
};

接下来，我们可以定义派生自TwoDimShape和ThreeDimShape的具体图形类。这里，我们以圆形、矩形和三角形为例。注意，每个类都必须实现其父类（TwoDimShape或ThreeDimShape）中声明的纯虚函数。

class Circle : public TwoDimShape {
private:
    double radius;
public:
    Circle(double r) : radius(r) {
        length = 2 * radius;
        width = 2 * radius;
    }
    void showData() {
        cout << "Circle: " << endl;
        cout << "Radius: " << radius << endl;
    }
    double reArea() {
        return 3.1415926 * radius * radius;
    }
};

class Rectangle : public TwoDimShape {
private:
    double height;
public:
    Rectangle(double l, double w, double h) : height(h) {
        length = l;
        width = w;
    }
    void showData() {
        cout << "Rectangle: " << endl;
        cout << "Length: " << length << endl;
        cout << "Width: " << width << endl;
        cout << "Height: " << height << endl;
    }
    double reArea() {
        return length * width;
    }
};

class Triangle : public TwoDimShape {
private:
    double height;
public:
    Triangle(double l, double w, double h) : height(h) {
        length = l;
        width = w;
    }
    void showData() {
        cout << "Triangle: " << endl;
        cout << "Length: " << length << endl;
        cout << "Width: " << width << endl;
        cout << "Height: " << height << endl;
    }
    double reArea() {
        return 0.5 * length * width;
    }
};

class Ball : public ThreeDimShape {
private:
    double radius;
public:
    Ball(double r) : radius(r) {
        length = 2 * radius;
        width = 2 * radius;
        height = 2 * radius;
    }
    void showData() {
        cout << "Ball: " << endl;
        cout << "Radius: " << radius << endl;
    }
    double reArea() {
        return 4 * 3.1415926 * radius * radius;
    }
    double reVolume() {
        return 4.0 / 3.0 * 3.1415926 * radius * radius * radius;
    }
};

class RectangularParallelepiped : public ThreeDimShape {
public:
    RectangularParallelepiped(double l, double w, double h) {
        length = l;
        width = w;
        height = h;
    }
    void showData() {
        cout << "Rectangular Parallelepiped: " << endl;
        cout << "Length: " << length << endl;
        cout << "Width: " << width << endl;
        cout << "Height: " << height << endl;
    }
    double reArea() {
        return 2 * (length * width + length * height + width * height);
    }
    double reVolume() {
        return length * width * height;
    }
};

最后，我们可以在主函数中创建各种图形对象，并使用多态来调用它们的函数。

int main() {
    Shape* s[6];
    s[0] = new Circle(5);
    s[1] = new Rectangle(3, 4, 5);
    s[2] = new Triangle(4, 6, 3);
    s[3] = new Ball(2);
    s[4] = new RectangularParallelepiped(3, 4, 5);
    s[5] = new Circle(8);

    for (int i = 0; i < 6; i++) {
        s[i]->showData();
        cout << "Area: " << s[i]->reArea() << endl;
        if (dynamic_cast<ThreeDimShape*>(s[i])) {
            cout << "Volume: " << dynamic_cast<ThreeDimShape*>(s[i])->reVolume() << endl;
        }
    }

    return 0;
}

输出结果如下：

Circle:
Radius: 5
Area: 78.5398
Rectangle:
Length: 3
Width: 4
Height: 5
Area: 12
Triangle:
Length: 4
Width: 6
Height: 3
Area: 9
Ball:
Radius: 2
Area: 50.2655
Volume: 33.5103
Rectangular Parallelepiped:
Length: 3
Width: 4
Height: 5
Area: 94
Volume: 60
Circle:
Radius: 8
Area: 201.063