date.cpp

来自「有计算机图形学、图像处理、dbms、sniffer、中游俄罗斯外挂、othell」· C++ 代码 · 共 121 行

// Date.cpp: implementation of the Date class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "Database.h"
#include "Date.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

Date::Date()
{
   tag=year=month=day=0;
}
Date::Date(WORD y,WORD m,WORD d,WORD t)
{
	int mark[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
	if(y>=0&&y<10000)
	{
		year=y;
        if(y%400==0||(y%4==0&&y%100!=0))
			mark[2]=29;
	}
	if(m>=1&&m<13)
		month=m;
	if(d>0&&d<=mark[m])
		day=d;
	tag=t;
}
Date::Date(CString s)
{
	if(s.GetLength()==10&&s[4]=='-'&&s[7]=='-')
	{
		year=WORD(atoi(LPCTSTR(s.Left(4))));//未考虑范围
		month=WORD(atoi(LPCTSTR(s.Mid(5,2))));
		day=WORD(atoi(LPCTSTR(s.Right(2))));
		tag=TRUE;
	}
	else
	{
		AfxMessageBox("format wrong");
	}
}

int Date::operator -(const Date &d)
{
	return 0;
}
bool Date::operator <(const Date &d)
{
	if(year<d.year||(year==d.year&&month<d.month)||(year==d.year&&month==d.month&&day<d.day))
		return TRUE;
	else return FALSE;
}
bool Date::operator <=(const Date &d)
{
    if(year<d.year||(year==d.year&&month<d.month)||(year==d.year&&month==d.month&&day<=d.day))
		return TRUE;
	else return FALSE;
}
bool Date ::operator >(const Date &d)
{
    if(year>d.year||(year==d.year&&month>d.month)||(year==d.year&&month==d.month&&day>d.day))
		return TRUE;
	else return FALSE;
}
bool Date ::operator >=(const Date &d)
{
    if(year>d.year||(year==d.year&&month>d.month)||(year==d.year&&month==d.month&&day>=d.day))
		return TRUE;
	else return FALSE;
}
bool Date::operator ==(const Date &d)
{
	if(year==d.year && month==d.month && day==d.day)
		return TRUE;
	else return FALSE;
}
CString Date::DateToCString()
{
	CString result;
	CString temp;
    result.Format("%d",year);
	if(year<1000)
		result="0"+result;
	result=result+"-";
    temp.Format("%d",month);
	if(month<10)
		temp="0"+temp;
	result=result+temp+"-";
	temp.Format("%d",day);//可能有问题
	if(day<10)
		temp="0"+temp;
	result=result+temp;
	return result;
}
Date::~Date()
{

}

Date::Date(const Date &date)
{
    this->tag=date.tag;
	this->year=date.year;
	this->month=date.month;
	this->day=date.day;
}