每日打卡一小时(第二十四天)
一.问题描述
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
二.代码实现
#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 { protected: static double PI; private: double radius; public: Circle(double x1 = 0, double y1 = 0, double r1 = 0); Circle(const Circle& p); ~Circle(); void setR(double r1); double getR()const; void show()const; double area()const; double length()const; }; double Circle::PI = 3.14159; Circle::Circle(double x1, double y1, double r1) :radius(r1), Point(x1, y1) { cout << "Circle Constructor run" << endl; } Circle::Circle(const Circle& p) :Point(p) { radius = p.getR(); cout << "Circle CopyConstructor run" << endl; } Circle::~Circle() { cout << "Circle Destructor run" << endl; } void Circle::setR(double r1) { radius = r1; } 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 PI * 2 * radius; } class Cylinder :public Circle, public Solid { double height; public: Cylinder(double x1 = 0, double y1 = 0, double r = 0, double h = 0); Cylinder(const Cylinder&); ~Cylinder() { cout << "Cylinder Destructor run" << endl; } void setH(double); double getH()const; void show()const; double s_Area()const; double volume()const; }; Cylinder::Cylinder(double x1, double y1, double r, double h) :height(h), Circle(x1, y1, r) { cout << "Cylinder Constructor run" << endl; } Cylinder::Cylinder(const Cylinder& p) :height(p.height), Circle(p) { cout << "Cylinder CopyConstructor run" << endl; } void Cylinder::setH(double h) { height = h; } double Cylinder::getH()const { return height; } 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; } 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; }