6.14

来源：互联网发布：赛诺手机数据编辑：程序博客网时间：2024/06/15 06:50

#include<iostream>
using namespace std;
class container
{
protected:
  double r1;
  double r2;
    public:
    container(double radius1,double radius2)
    {
    r1=radius1;
    r2=radius2;
    }
    virtual double surface_area()=0;
    virtual double volume()=0;
};
class cube:public container
{
public:
  cube(double radius1,double radius1):container(radius1,radius1)
  {};
  double surface_area()
  {
   cout<<"边长："<<r1<<endl;
   cout<<"表面积："<<6*r1*r1<<endl;
  }
  double volume()
  {
   cout<<"体积："<<r1*r1*r1<<endl;
  }
};
class sphere:public container
{
public:
  sphere(double radius1,double radius1):container(radius1,radius1)
  {};
  double surface_area()
  {
   cout<<"半径："<<r1<<endl;
   cout<<"表面积："<<4*3.14*r1*r1<<endl;
  }
  double volume()
  {
   cout<<"体积："<<(4/3)*3.14*r1*r1*r1<<endl;
  }
};
class cyliner:public container
{
public:
  cyliner(double radius1,double radius2):container(radius1,radius2)
  {};
  double surface_area()
  {
   cout<<"半径："<<r1<<endl;
   cout<<"高："<<r2<<endl;
   cout<<"表面积："<<2*3.14*r1*r1+2*3.14*r1*r2<<endl;
  }
  double volume()
  {
   cout<<"体积："<<3.14*r1*r1*r2<<endl;
  }

}
int main()
{
contain *p;
cube c(6.0,6.0);
sphere s(5.0,5.0);
cyliner cy(6.0,5.0);
p=&c;
p->surface_area();
p->volume();
p=&s;
p->surface_area();
p->volume();
p=&cy;
p->surface_area();
p->volume();
return 0;

}

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