日期时间

#include<iostream>  
using namespace std;  
class Date  
{  
public:  
    void SetDate(int y,int m,int d)  
    {  
        Year=y;  
        Month=m;  
        Day=d;  
    }  
    void PrintDate()  
    {  
        cout<<Year<<"/"<<Month<<"/"<<Day;  
    }  
    Date():Year(0),Month(0),Day(0) {}  
    Date(int y,int m,int d):Year(y),Month(m),Day(d) {}  
  
private:  
    int Year,Month,Day;  
};  
class Time  
{  
public:  
    void SetTime(int h,int m,int s)  
    {  
        Houre=h;  
        Minutes=m;  
        Seconds=s;  
    }  
    void PrintTime()  
    {  
        cout<<Houre<<":"<<Minutes<<":"<<Seconds;  
    }  
    Time():Houre(0),Minutes(0),Seconds(0) {}  
    Time(int h,int m,int s):Houre(h),Minutes(m),Seconds(s) {}  
  
private:  
    int Houre,Minutes,Seconds;  
};  
class TimeDate: public Date,public Time  
{  
public:  
    TimeDate():Date(),Time() {};  
    TimeDate(int y,int mo,int d,int h,int mi,int s):  
        Date(y,mo,d),Time(h,mi,s) {}  
    void PrintDate_Time()  
    {  
        PrintDate();  
        cout<<" ";  
        PrintTime();  
    }  
};  
int main()  
{  
    TimeDate dt_a,dt_b(2010,4,16,9,30,0);  
    cout<<"dt_a: ";  
    dt_a.PrintDate_Time();  
    cout<<endl;  
    cout<<"dt_b: ";  
    dt_b.PrintDate_Time();  
    dt_a.SetTime(20,00,00);  
    dt_a.SetDate(2008,8,7);  
    cout<<endl;  
    cout<<"dt_after uptate: ";  
    dt_a.PrintDate_Time();  
    return 0;  
}