类的加法
#include<iostream>
using namespace std;
class data
{
private:int m, d, y;static int day[];
public:data(int M, int D, int Y){m = M;d = D;y = Y;}void display(){cout << "年" << y << "月" << m << "日" << d << endl;}data operator+(int n)const{data Data = *this;n += Data.d;while (n > day[Data.m - 1]){n -= day[Data.m - 1];if (++Data.m == 13){Data.m = 1;Data.y++;}}Data.d = n;return Data;}
};
int data::day[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
int main()
{data d1(03, 05, 2012);d1.display();data d2 = d1 + 10;cout << "加上后" << endl;d2.display();system("pause");return 0;
}
總結(jié)
