ch12_6.cpp

C++程序设计教程

#include<iostream.h>
class Tdate
{
public:
	Tdate();
	Tdate(int d);
	Tdate(int m,int d);
	Tdate(int m,int d, int y);
	//other public
protected:
	int month;
	int day;
	int year;
};

Tdate::Tdate()
{
month=1;day=5;year=2007;
cout<<month<<"/"<<day<<"/"<<year<<endl;
}

Tdate::Tdate(int d)
{
month=1;day=d;year=2007;
cout<<month<<"/"<<day<<"/"<<year<<endl;
}

Tdate::Tdate(int m,int d)
{
month=m;day=d;year=2007;
cout<<month<<"/"<<day<<"/"<<year<<endl;
}

Tdate::Tdate(int m,int d,int y)
{
month=m;day=d;year=y;
cout<<month<<"/"<<day<<"/"<<year<<endl;
}

void main()
{
//Tdate dday(1,8,2007);
Tdate aday;
Tdate bday(6);
Tdate cday(1,7);
Tdate dday(1,8,2007);
}