Description
using namespace std;
#define PI 3.14
class Shape
{
public:
Shape(int c);
protected:
int color;
};
Shape::Shape(int c)
{
color=c;
}
class Rectangle:virtual public Shape
{
public:
Rectangle(int c,double w,double h);
protected:
double width,height;
};
Rectangle::Rectangle(int c,double w,double h):Shape(c)
{
width=w;height=h;
}
class Triangle: virtual public Shape
{
public:
Triangle(int c,double b,double h);
protected:
double base,height;
};
Triangle::Triangle(int c,double b,double h):Shape(c)
{
base=b;height=h;
}
class Circle:virtual public Shape
{
public:
Circle(int c,double r);
protected:
double radius;
};
Circle::Circle(int c,double r):Shape(c)
{
radius=r;
}
class MyShape:public Rectangle, public Triangle, public Circle
{
public:
MyShape(int c, double w,double h,double b,double h1,double r,double s);
double area();
double price();
private:
int sign;
};
int main()
{
MyShape ms1=MyShape(1,1,3,1,2,1,3);
MyShape ms2=MyShape(1,1,3,1,2,1,2);
MyShape ms3=MyShape(1,1,3,1,2,1,1);
cout<<"MyShape1 area:"<<ms1.area()<<endl;
cout<<"MyShape1 price:"<<ms1.price()<<endl;
cout<<"MyShape2 area:"<<ms2.area()<<endl;
cout<<"MyShape2 price:"<<ms2.price()<<endl;
cout<<"MyShape3 area:"<<ms3.area()<<endl;
cout<<"MyShape3 price:"<<ms3.price()<<endl;
return 0;
}
提示:不用提交全部程序,只提交补充部分
Input
无
Output
输出小聪测试的MyShape类的area与price的值。
Sample Output
MyShape1 area:7.14MyShape1 price:14.42MyShape2 area:7.14MyShape2 price:10.28MyShape3 area:7.14MyShape3 price:7.14#include<iostream> using namespace std; #define PI 3.14 class Shape { public: Shape(int c); protected: int color; }; Shape::Shape(int c) { color=c; } class Rectangle:virtual public Shape { public: Rectangle(int c,double w,double h); protected: double width,height; }; Rectangle::Rectangle(int c,double w,double h):Shape(c) { width=w;height=h; } class Triangle: virtual public Shape { public: Triangle(int c,double b,double h); protected: double base,height; }; Triangle::Triangle(int c,double b,double h):Shape(c) { base=b;height=h; } class Circle:virtual public Shape { public: Circle(int c,double r); protected: double radius; }; Circle::Circle(int c,double r):Shape(c) { radius=r; } class MyShape:public Rectangle, public Triangle, public Circle { public: MyShape(int c, double w,double h,double b,double h1,double r,double s); double area(); double price(); private: int sign; };MyShape::MyShape(int c,double w,double h,double b,double h1,double r,double s):Shape(c),Rectangle(c,w,h),Triangle(c,b,h1),Circle(c,r),sign(s){} double MyShape::area() { return width*Rectangle::height+base*Triangle::height*0.5+PI*radius*radius; } double MyShape::price() { if(sign==1) return (width*Rectangle::height+base*Triangle::height*0.5+PI*radius*radius)*color; if(sign==2) return width*Rectangle::height*color+base*Triangle::height*0.5*color+PI*radius*radius*(color+1); if(sign==3) return width*Rectangle::height*color+base*Triangle::height*0.5*(color+1)+PI*radius*radius*(color+2); } int main() { MyShape ms1=MyShape(1,1,3,1,2,1,3); MyShape ms2=MyShape(1,1,3,1,2,1,2); MyShape ms3=MyShape(1,1,3,1,2,1,1); cout<<"MyShape1 area:"<<ms1.area()<<endl; cout<<"MyShape1 price:"<<ms1.price()<<endl; cout<<"MyShape2 area:"<<ms2.area()<<endl; cout<<"MyShape2 price:"<<ms2.price()<<endl; cout<<"MyShape3 area:"<<ms3.area()<<endl; cout<<"MyShape3 price:"<<ms3.price()<<endl; return 0; }