C++面向对象类的实例题目三
编写一个程序,设计一个满足如下要求的CData类。
(1)用下面的格式输出日期:日/月/年
(2)输出在当前日期上加一天后的日期
(3)设置日期
code:
#include<iostream> using namespace std; class CData { public: CData(int y,int m,int d); void setdate(int y, int m, int d); void display(); void add(); private: int day; int month; int year; }; CData::CData(int y,int m,int d) { day = d; month = m; year = y; } void CData::setdate(int y,int m,int d) { day = d; month = m; year = y; } void CData::display() { cout<<day<<"/"<<month<<"/"<<year<<endl; } void CData::add() { int a[2][12]={ {31,28,31,30,31,30,31,31,30,31,30,31}, {31,29,31,30,31,30,31,31,30,31,30,31} }; if((year%400 == 0)||(year%100 !=0 && year%4 ==0))//闰年的情况 { if(a[1][month-1]>day)day++; else { month++; if(month>12) { year++; month = 1; } day = 1; } } else //平年的情况 { if(a[0][month-1]>day)day++; else { month++; if(month>12) { year++; month = 1; } day = 1; } } } int main() { CData date(2013,12,31); date.display(); date.add(); date.display(); date.setdate(2014,11,11); date.display(); date.add(); date.display(); return 0; }
结果输出:
31/12/2013 1/1/2014 11/11/2014 12/11/2014