C++类学习

最新推荐文章于 2024-11-30 10:37:45 发布

Clearle

最新推荐文章于 2024-11-30 10:37:45 发布

阅读量688

点赞数

CC 4.0 BY-SA版权

分类专栏：学习资料

本文链接：https://blog.youkuaiyun.com/budlele/article/details/14456261

学习资料专栏收录该内容

11 篇文章

订阅专栏

本文介绍了使用 C++ 创建一个日期类，实现日期的增加和减小操作，并展示了如何通过友元函数展示日期。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

#include <iostream>

using namespace std;

class CDdate
{
private:
    int Day;
    int Month;
    int Year;
public:
    CDdate(int d=0,int m=0,int y=0);
    CDdate(int d);
    CDdate(int d,int m);
    ~CDdate();
    void setdate(int d,int m,int y);
    friend void showdate(CDdate &date);
    CDdate operator+(CDdate & date);
    CDdate operator-(CDdate & date);

};

CDdate::CDdate(int d,int m,int y)
{
    Day = d;
    Month = m;
    Year = y;
}

CDdate::CDdate(int d)
{
    Day = d;
}

CDdate::CDdate(int d,int m)
{
    Day = d;
    Month = m;
}

CDdate::~CDdate()
{

}

void CDdate::setdate(int d,int m,int y)
{
    Day = d;
    Month = m;
    Year = y;
}

void showdate(CDdate &date)
{
    cout<<date.Day<<"/"<<date.Month<<"/"<<date.Year<<endl<<endl;
}

CDdate CDdate::operator+(CDdate & date)
{
    CDdate temp;
    temp.Day=++date.Day;
    temp.Month=++date.Month;
    temp.Year=++date.Year;
    return temp;
}

CDdate CDdate::operator-(CDdate & date)
{
    CDdate temp;
    temp.Day=--date.Day;
    temp.Month=--date.Month;
    temp.Year=--date.Year;
    return temp;
}

int main()
{
    CDdate t1;
    showdate(t1);

    CDdate t2(2013,11,7);
    showdate(t2);

    t1.setdate(2013,11,6);
    showdate(t1);

    t2=t2-t2;
    showdate(t2);

    t2=t2+t2;
    showdate(t2);

    t1.~CDdate();
    t2.~CDdate();
    return 0;
}