pta_【CPP0027】以圆类Circle及立体图形类Solid为基础设计球类Sphere

#include <iostream>
using namespace std;
//点类Point
class Point{
private:
double x;
double y;
public:
Point(double xv=0,double yv=0);/*构造函数*/
Point(const Point &p); /*拷贝构造*/
~Point(); /*析构函数*/
void setX(double xv); /*设置X坐标*/
void setY(double yv); /*设置Y坐标*/
double getX()const; /*获取X坐标*/
double getY()const; /*获取Y坐标*/
virtual void show()const; /*显示*/
};
Point::Point(const double xv,const double yv){/*构造函数*/
x=xv;
y=yv;
cout<<"Point Constructor run"<<endl;
}
Point::Point(const Point &p){/*拷贝构造*/
x=p.x;
y=p.y;
cout<<"Point CopyConstructor run"<<endl;
}
Point::~Point(){/*析构函数*/
cout<<"Point Destructor run"<<endl;
}
void Point::setX(double xv){/*设置X坐标*/
x=xv;
}
void Point::setY(double yv){/*设置Y坐标*/
y=yv;
}
double Point::getX()const{/*获取X坐标*/
return x;
}
double Point::getY()const{/*获取Y坐标*/
return y;
}
void Point::show()const{/*显示*/
cout<<"Point(X="<<x<<",Y="<<y<<")";
}
//平面图形类Plane
class Plane{
public:
virtual double length()const=0;/*周长*/
virtual double area()const=0; /*面积*/
};
//立体图形类Solid
class Solid{
public:
virtual double volume()const=0;/*体积*/
virtual double s_Area()const=0;/*表面积*/
};

class Circle : public Point, public Plane
{
public:
Circle(double x = 0, double y = 0, double r = 0) : Point(x, y), radius(r)
{
cout << "Circle Constructor run" << endl;
}
Circle(const Circle &c) : Point(c), radius(c.radius)
{
cout << "Circle CopyConstructor run" << endl;
}
~Circle()
{
cout << "Circle Destructor run" << endl;
}
void setR(double r)
{
radius = r;
}
double getR() const
{
return radius;
}
void show() const
{
cout << "Circle(Point(X=" << getX() << ",Y=" << getY() << "),Radius=" << radius << ")";
}
double area() const
{
return PI * radius * radius;
}
double length() const
{
return 2 * PI * radius;
}
protected:
static const double PI;
double radius;
};
class Sphere : public Circle, public Solid
{
public:
Sphere(double x = 0, double y = 0, double r = 0) : Circle(x, y, r)
{
cout << "Sphere Constructor run" << endl;
}
Sphere(const Sphere &s) : Circle(s)
{
cout << "Sphere CopyConstructor run" << endl;
}
~Sphere()
{
cout << "Sphere Destructor run" << endl;
}
void show() const
{
cout << "Sphere(";
Circle::show();
cout << ")";
}
double s_Area() const
{
return 4 * PI * radius * radius;
}
double volume() const
{
return 4.0 / 3.0 * PI * radius * radius * radius;
}
};
const double Circle::PI = 3.14159;
void show(const Sphere *s)
{
s->show();
}
void area(const Circle &c)
{
cout << "Area=" << c.area() << endl;
}
void length(const Circle *c)
{
cout << "Length=" << c->length() << endl;
}
void s_Area(const Sphere &s)
{
cout << "S_Area=" << s.s_Area() << endl;
}
void volumn(const Sphere *s)
{
cout << "Volumn=" << s->volume() << endl;
}

void show(Point *p){/*点基类的显示函数*/
p->show();
}
void length(Plane *p){/*平面图形的周长函数*/
cout<<"Length="<<p->length()<<endl;
}
void area(Plane &p){/*平面图形的面积函数*/
cout<<"Area="<<p.area()<<endl;
}

void volumn(Solid *s){/*立体图形的体积函数*/
cout<<"Volumn="<<s->volume()<<endl;
}
void s_Area(Solid &s){/*立体图形的表面积函数*/
cout<<"S_Area="<<s.s_Area()<<endl;
}
//主函数
int main(void){
double r;
cin>>r;
Sphere s1(1,2,3),s2(s1);
show(&s1);
cout<<endl;
area(s1);
length(&s1);
s_Area(s1);
volumn(&s1);
s2.setR(r);
show(&s2);
cout<<endl;
area(s2);
length(&s2);
s_Area(s2);
volumn(&s2);
return 0;
}