?? p416 12.1.cpp
字號:
#include"Shape.h"
#include"Point.h"
#include"Pointdef.cpp"
#include"Circle.h"
#include"Circledef.cpp"
#include"Cylinder.h"
#include"Cylinderdef.cpp"
int main()
{
Point p(23.4,56);
Shape *s=&p;
s->showname();
s->display();
cout<<"the area ="<<s->area()<<endl;
cout<<"the volum ="<<s->volume()<<endl;
Circle c(34,23,4);
s=&c;
s->showname();
s->display();
cout<<"the area ="<<s->area()<<endl;
cout<<"the volum ="<<s->volume()<<endl;
Cylinder cy(23,45,24,12);
s=&cy;
s->showname();
s->display();
cout<<"the area ="<<s->area()<<endl;
cout<<"the volum ="<<s->volume()<<endl;
system("pause");
return 0;
}
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