ch12_7.cpp

C++程序设计教程

#include <iostream.h>

class Tdate
{
public:
	Tdate(){Init(1,5,2007);}
	Tdate(int d){Init(1,d,2007);}
	Tdate(int m,int d){Init(m,d,2007);}
	Tdate(int m,int d, int y){Init(m,d,y);}
	// other public
protected:
	int month;
	int day;
	int year;
	void Init(int m, int d, int y)
	{
	month=m;
	day=d;
	year=y;
	cout<<month<<"/"<<day<<"/"<<year<<endl;
	}
};

void main()
{
Tdate aday;
Tdate bday(1);
Tdate cday(1,7);
Tdate dday(1,8,2007);
}