练习：编写一个函数，设计一个满足下边要求的CDate类，用数据进行调试并输出结果 //（1）用日/月/年格式输出日期。 //（2）可进行日期加一天的操作 //（3）设置日期。
代码语言：javascript复制#include<iostream>
using namespace std;
class CDate
{
private:
int m_nDay;
int m_nMonth;
int m_nYear;
public:
CDate();//默认构造函数
CDate(int, int, int);//重载构造函数
void Display();//输出日期
void Adddate();//返回加1后的日期
void Setdate(int,int,int);//设置日期
~CDate();//析构函数
private:
bool Isleapyear();//判断年份是不是闰年
};
CDate::CDate()
{}
CDate::CDate(int year, int month, int day)
{
m_nDay = day;
m_nMonth = month;
m_nYear = year;
}
void CDate::Display()
{
cout << m_nYear << "年" << m_nMonth << "月" << m_nDay << "日" << endl;
}
void CDate::Adddate()
{
m_nDay ;
if (Isleapyear())
{
if (m_nMonth == 2 && m_nDay == 30)
{
m_nMonth ;
m_nDay = 1;
return;
}
}
else
{
if (m_nMonth == 2 && m_nDay == 29)
{
m_nMonth ;
m_nDay = 1;
return;
}
}
if (m_nDay > 31)
{
if (m_nMonth == 12)
{
m_nYear ;
m_nMonth = 1;
m_nYear = 1;
}
else
{
m_nMonth ;
m_nDay = 1;
}
}
else if (m_nDay == 31)
{
if (m_nMonth == 4 || m_nMonth == 6 || m_nMonth == 9 || m_nMonth == 11)
{
m_nMonth ;
m_nDay = 1;
}
}
}
void CDate::Setdate(int year,int month,int day)
{
m_nDay = day;
m_nMonth = month;
m_nYear = year;
}
CDate::~CDate()
{
}
bool CDate::Isleapyear()
{
bool bLeap;
if (m_nYear % 4 != 0) bLeap = false;
else if (m_nYear % 100 != 0) bLeap = true;
else if (m_nYear % 400) bLeap = false;
return bLeap;
}
void main()
{
CDate date;
int y, m, d;
cout << "年月日" << endl;
cin >> y >> m >> d;
date.Setdate(y, m, d);
cout << "当前日期:";
date.Display();
date.Adddate();
cout << "当前日期加1:";
date.Display();
system("pause");
}
