int main()
{
Circle cir;
cout << "圆的面积为：" << cir.area() << endl;
Cylinder cy;
cout << "圆柱体的表面积为：" << cy.area() << endl;
cout << "圆柱体的体积为：" << cy.volume() << endl;
return 0;
}
int main()
{
cout << fixed << showpoint << setprecision(2);
Cylinder one;
cout << "Enter cylinder height and radius >>> ";
cin >> one;
cout << "The cylinder volume is " << one.volume(one) << endl;
cout << "The cylinder surface area is " << one.surface_area(one) << endl;
cout << one;
Sphere two;
cout << "Enter sphere radius >>> ";
cin >> two.radius;
cout << "The sphere volume is " << two.volume(two) << endl;
cout << "The sphere surface area is " << two.surface_area(two) << endl;
cout << two.radius << endl;
Prism three;
cout << "Enter rectangular prism base length, height, and width >>> ";
cin >> three;
cout << "The rectangular prism volume is " << three.volume(three) << endl;
cout << "The rectangular prism surface area is " << three.surface_area (three) << endl;
cout << three;
Cone four;
cout << "Enter cone height and radius >>> ";
cin >> four;
cout << "The cone volume is " << four.volume(four) << endl;
cout << "The cone surface area is " << four.surface_area(four) << endl;
cout << four;
Pyramid five;
cout << "Enter pyramid base side length and height >>> ";
cin >> five;
cout << "The pyramid volume is " << five.volume(five) << endl;
cout << "The pyramid surface area is " << five.surface_area(five) << endl;
cout << five;
return 0;
}
int main () {
Cylinder foo (10,20);
cout << "foo's volume: " << foo.volume() << '\n';
return 0;
}
static inline double measure( const Cylinder& cylinder )
{ return cylinder.volume(); }
