fig5_8.cpp.bak

用三个类来研究类的继承！类Point、Circle、Cylinder

//fig5_8.cpp
//类Circle的测试程序
#include <iostream.h>
#include <assert.h>
#include "circle2.h"

main()
{
	Circle c(2.5, 3.7, 4.3);

	cout<<"X coodinate is "<<c.getX()
		<<"\nY coodinate is "<<c.getY()
		<<"\nRadius is "<<c.getRadius();

	c.setRadius(4.25);
	c.setPoint(2, 2);
	
	cout<<"\n\nThe new location and radius of c are \n"
		<<c<<"\narea:"<<c.area()<<endl;

	Point *pRef=c;
	cout<<"\nCircle print as a point is: "
		<<pRef<<endl;

	return 0;
}