用C++编写相关程序

设计三个类Time、Date、Birthtime，
其中，Time类能够记录setTime(…)和显示时分show()；
Date类能够记录setDate(…)和显示年月日show()；
类Birthtime派生自Time和Date，并增加一个数据成员Childname用于表示小孩的名字,自行设计合理的成员函数。

同时设计主程序显示一个小孩的出生时间和名字。

代码如下：

#include<iostream>
using namespace std;

class Time
{
public:
    int hour, minute, second;
public:
    void setTime(int h, int m, int s) { hour = h; minute = m; second = s; }
    void show() { cout << hour << ":" << minute << ":" << second; }
};

class Date
{
public:
    int year, month, day;
public:
    void setDate(int y, int m, int d) { year = y; month = m; day = d; }
    void show() { cout << year << "-" << month << "-" << day; }
};

class Birthtime :public Time, public Date
{
public:
    char Childname[30];
public:
    void setChildname(const char* name)
    {
        strcpy(Childname, name);
    }
    void show()
    {
        cout << Childname << " ";
        Date::show();
        cout << " ";
        Time::show();
    }
};


int main()
{
    Birthtime b;
    b.setChildname("ZhangSan");
    b.setDate(2012, 4, 20);
    b.setTime(10, 8, 9);
    b.show();
    return 0;
}

代码如下：有帮助的话采纳一下哦！

#include <iostream>
#include <string>
using namespace std;

class Time
{
public:
    Time(int h=0, int m = 0, int s = 0)
    {
        hours = h;
        minutes = m;
        seconds = s;
    };
    void display()
    {
        cout << "出生时间：" << hours << "时" << minutes << "分" << seconds << "秒" << endl;

    }

protected:
    int hours, minutes, seconds;

};

class Date
{
public:
    Date(int m = 0, int d = 0, int y = 0)
    {
        year = m;
        month = d;
        day = y;
    }

    void display()
    {
        cout << "出生年月：" << year << "年" << month << "月" << day << "日" << endl;
    }
protected:
    int month,day,year;

};


class Birthtime :public Time, public Date
{
public:
    Birthtime(string a=" ", int b = 0, int c = 0, int d = 0, int e = 0, int f = 0, int g = 0):Time(e,f,g),Date(b,c,d)
    {
        childName = a;
    }
    void output()
    {
        cout << "姓名：" << childName <<endl;
        Date::display();
        Time::display();
    }
protected:
    string  childName;
};

int main()
{

    int year, month, day, hours, minutes, seconds;
    string childName;

    cin >> childName;
here1:
    cin >> year >> month >> day;
    if (month < 0 || month > 12 || day < 0 || day > 31)
    {
        cout << "日期输入错误！请重新输入数据！"<<endl;
        goto here1;
    }
    if (month == 2 || month == 4 || month == 6 || month == 9 || month == 11 )
    {
        if (day > 30)
        {
            cout << "日期输入错误！请重新输入数据！" << endl;
            goto here1;
        }
    }
    if (!(year % 400 == 0 || (year % 100 != 0 && year % 4 == 0)))
    {
        if(month == 2)
            if (day > 28)
            {
                cout << "日期输入错误！请重新输入数据！" << endl;
                goto here1;
            }
    }
here2:
    cin >> hours >> minutes >> seconds;
    if (hours < 0 || hours > 24 || minutes < 0 || minutes > 60|| seconds < 0|| seconds > 60)
    {
        cout << "时间输入错误！请重新输入数据！" << endl;
        goto here2;
    }
    Birthtime A(childName,year, month, day, hours, minutes, seconds);
    A.output();

    return 0;
}