11_3.cpp
资源名称:c.rar [点击查看]
上传用户:puke2000
上传日期:2022-07-25
资源大小:912k
文件大小:1k
源码类别:
C#编程
开发平台:
Visual C++
- //11_3
- #ifndef DATE
- #define DATE
- #include <iostream.h>
- class Date{
- public:
- void Display();
- void AddOneDay();
- void SetDay(int y,int m,int d);
- protected:
- bool Legal(int y, int m, int d);
- bool IsLeapYear(int y);
- int year;
- int month;
- int day;
- };
- void Date::Display()
- {
- cout <<day <<"/" <<month <<"/" <<year <<endl;
- }
- void Date::AddOneDay()
- {
- if(Legal(year,month,day+1))
- day++;
- else if(Legal(year,month+1,1))
- month++,day=1;
- else if(Legal(year+1,1,1))
- day=1,month=1,year++;
- }
- void Date::SetDay(int y, int m, int d)
- {
- if(Legal(y,m,d))
- day=d, month=m, year=y;
- }
- bool Date::Legal(int y, int m, int d)
- {
- if(y>9999||y<1||d<1||m<1||m>12)
- return false;
- int dayLimit=31;
- switch(m) case 4: case 6: case 9: case 11: dayLimit--;
- if(m==2) dayLimit = IsLeapYear(y) ? 29 : 28;
- return (d>dayLimit)? false : true;
- }
- bool Date::IsLeapYear(int y)
- {
- return !(y%4)&&(y%100)||!(y%400);
- }
- #endif