overload.cc

来自「做为SD0609的一员,我扎实的基础是如何打出来的,来看看我那时连猴子选大王都不」· CC 代码 · 共 74 行

#include <iostream>
using namespace std;

class Time{
	int hour;
	int minute;
	int second;
public:
	Time();
	Time( int h, int m, int s );
	void set( int h, int m, int s );
	void tick();
	void output();
};
Time::Time()
:hour(0),minute(0),second(0)
{
	//hour = minute = second = 0;
	cout << "called Time()" << endl;
}
Time::Time(int h, int m, int s)
{
	set( h, m, s );
	cout << "called Time(int,int,int)" << endl;
}
void Time::set( int h, int m, int s )
{
	hour = (h>=0&&h<24?h:0);
	minute = (m>=0&&m<60?m:0);
	second = (s>=0&&s<60?s:0);
}
void Time::output()
{
	cout << hour << ':' << minute << ':' << second << endl;
}
void Time::tick()
{
	second++;
	if( second==60 )
	{
		second = 0;
		minute++;
		if( minute==60 )
		{
			minute = 0;
			hour++;
			if( hour==24 )
				hour = 0;
		}
	}
}

int main()
{
	Time t, e(12,34,56);
	cout << "t=";
	t.output();
	cout << "e=";
	e.output();
	t.set( 23, 58, 50 );
	t.output();
	for( int i=0; i<40; i++ )
		t.tick();
	t.output();
	for( int i=0; i<40; i++ )
		t.tick();
	t.output();
	for( int i=0; i<40; i++ )
		e.tick();
	e.output();
	return 0;
}