fig5_7.cpp

用三个类来研究类的继承！类Point、Circle、Cylinder

//fig5_7.cpp
//类Point的测试程序

#include <iostream.h>
#include <assert.h>
#include "point2.h"

main()
{
	Point p(7.2, 11.5);	//建立类Point的对象实例

	//main函数不能访问类Point的受保护数据成员
	cout<<"X coodinate is "<<p.getX()
		<<"\nY coodinate is "<<p.getY()<<endl;

	p.setPoint(10, 10);
	cout<<"\nThe new location of p is "<<p<<endl;

	return 0;
}