以点类Point及平面图形类Plane为基类公有派生圆类Circle,再以圆类Circle及立体图形类Solid为基类公有派生圆柱类Cylinder,main(void)函数完成对圆柱类Cylinder的测试。
Point类结构说明:
Point类的数据成员包括:
①私有数据成员:X坐标x(double型),Y坐标y(double型)。
Point类成员函数包括:
①有参构造函数Point(double, double)和拷贝构造函数Point(const Point &),其中有参构造函数参数默认值为0,输出信息“Point Constructor run”,拷贝构造函数输出信息“Point CopyConstructor run”
②析构函数,析构函数输出信息“Point Destructor run”
③公有函数成员:void setX(double)和double getX() const分别返回和设置X坐标
④公有函数成员:void setY(double)和double getY() const分别返回和设置Y坐标
⑤公有成员函数void show() const用于显示点的坐标信息,显示格式为:Point(X=<X坐标>,Y=<Y坐标>)
Plane类结构说明:
Plane类的成员函数包括:
①纯虚函数virtual double length()const用于计算平面图形的周长
②纯虚函数virtual double area()const用于计算平面图形的面积
Solid类结构说明:
Solid类的成员函数包括:
①纯虚函数virtual double volume()const用于计算立体图形的体积
②纯虚函数virtual double s_Area()const用于计算立体图形的表面积
Circle类结构说明:
公有派生圆类Circle以点类Point、平面图形类Plane为基类,Circle类的结构说明如下:
Circle类的数据成员包括:
①圆心坐标继承自Point类
②保护静态数据常量PI(double型),其值为3.14159
③私有数据成员:半径radius(double型)。
Circle类成员函数包括:
①有参构造函数Circle(double, double, double)和拷贝构造函数Circle(const Circle &),其中有参构造函数参数包括圆心坐标和半径,圆心调用Point类构造函数进行构造,各参数默认值为0,输出信息“Circle Constructor run”,拷贝构造函数输出信息“Circle CopyConstructor run”
②析构函数,析构函数输出信息“Circle Destructor run”
③公有函数成员void setR(double)和double getR()const分别返回和设置radius
④重载void show()const用于显示圆的信息,显示格式为:
Circle(Point(<圆心X坐标>,<圆心Y坐标>),Radius=<半径>)
⑤重载double area()const用于计算圆的面积
⑥重载double length()const用于计算圆的周长
Cylinder类结构说明:
公有派生圆柱类Cylinder以圆类Circle、立体图形类Solid为基类,Cylinder类的结构说明如下:
Cylinder类的数据成员包括:
①基圆继承自Circle类
②私有数据成员:高度 height(double型)
Cylinder类成员函数包括:
①有参构造函数Cylinder(double, double, double, double)和拷贝构造函数Cylinder(const Cylinder &),其中有参构造函数参数包括基圆圆心坐标、半径和高度,基圆调用Circle类构造函数进行构造,各参数默认值为0,输出信息“Cylinder Constructor run”,拷贝构造函数输出信息“Cylinder CopyConstructor run”
②析构函数,析构函数输出信息“Cylinder Destructor run”
③重载void show()const用于显示圆柱的信息,显示格式为:
Cylinder(Circle(Point(<球心X坐标>,<球心Y坐标>),Radius=<半径>),Height=<高度>)
④重载double s_Area()const用于计算圆柱的面积
⑤重载double volume()const用于计算圆柱的体积
裁判测试程序样例:
#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*/
};
/*请在这里填写答案*/
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 h;
cin>>h;
Cylinder cy1(1,2,3,4),cy2(cy1);
show(&cy1);
cout<<endl;
area(cy1);
length(&cy1);
s_Area(cy1);
volumn(&cy1);
cy2.setH(h);
show(&cy2);
cout<<endl;
area(cy2);
length(&cy2);
s_Area(cy2);
volumn(&cy2);
return 0;
}
输入样例:
1.0
输出样例:
Point Constructor run Circle Constructor run Cylinder Constructor run Point CopyConstructor run Circle CopyConstructor run Cylinder CopyConstructor run Cylinder(Circle(Point(X=1,Y=2),Radius=3),Height=4) Area=28.2743 Length=18.8495 S_Area=131.947 Volumn=113.097 Cylinder(Circle(Point(X=1,Y=2),Radius=3),Height=1) Area=28.2743 Length=18.8495 S_Area=75.3982 Volumn=28.2743 Cylinder Destructor run Circle Destructor run Point Destructor run Cylinder Destructor run Circle Destructor run Point Destructor run
class Circle:public Point,public Plane
{
private:
double radius;
public:
static double PI;
Circle(double x1=0,double x2=0,double r1=0);
Circle(const Circle &P);
~Circle();
void setR(double r2);
double getR() const;
void show() const;
double area() const;
double length() const;
};
double Circle::PI=3.14159;
Circle::Circle(double x1,double x2,double r1):Point(x1,x2)
{
radius=r1;
cout<<"Circle Constructor run"<<endl;
}
Circle::Circle(const Circle &p):Point(p)
{
radius=p.radius;
cout<<"Circle CopyConstructor run"<<endl;
}
Circle::~Circle()
{
cout<<"Circle Destructor run"<<endl;
}
void Circle::setR(double r2)
{
radius=r2;
}
double Circle::getR() const
{
return radius;
}
void Circle::show() const
{
cout<<"Circle(Point(X="<<getX()<<",Y="<<getY()<<"),Radius="<<radius<<")";
}
double Circle::area() const
{
return PI*radius*radius;
}
double Circle::length() const
{
return 2*PI*radius;
}
class Cylinder:public Circle,public Solid
{
private:
double height;
public:
Cylinder(double x=0,double y=0,double r=0,double h=0);
Cylinder(const Cylinder &p);
~Cylinder();
void setH(double h);
void show() const;
double s_Area()const;
double volume()const;
};
Cylinder::Cylinder(double x,double y,double r,double h):Circle(x,y,r)
{
height=h;
cout<<"Cylinder Constructor run"<<endl;
}
Cylinder::Cylinder(const Cylinder &p):Circle(p)
{
height=p.height;
cout<<"Cylinder CopyConstructor run"<<endl;
}
Cylinder::~Cylinder()
{
cout<<"Cylinder Destructor run"<<endl;
}
void Cylinder::setH(double h)
{
height=h;
}
void Cylinder::show() const
{
cout<<"Cylinder(Circle(Point(X="<<getX()<<",Y="<<getY()<<"),Radius="<<getR()<<"),Height="<<height<<")";
}
double Cylinder::s_Area() const
{
return 2*PI*getR()*getR()+2*PI*getR()*height;
}
double Cylinder::volume() const
{
return PI*getR()*getR()*height;
}