#include <iostream>

using namespace std;

#include "Time.h"

Time::Time():myHours(12),myMinutes(0),myAMorPM('P'),myMilTime(0){}

Time::Time(unsigned initHours,unsigned initMinutes,unsigned initAMPM)

{

 if(initHours >=1 &&initHours <= 12&&initMinutes >= 0&& initMinutes <= 59&&(initAMPM == 'P'||initAMPM== 'A'))

 {

  myHours = initHours;

  myMinutes = initMinutes;

  myAMorPM = initAMPM;

  myMilTime = initHours * 100 + initMinutes + (initAMPM == 'P'?1200:0);

 }

 else

  cerr<<"****Invalid initial values****\n";

 

}

void Time::display()const

{

 cout<<myHours<<":"<<(myMinutes > 10?"":"0")<<myMinutes<<" "<<myAMorPM<<".M"<<endl;

}

ostream& operator <<(ostream& out,const Time &T)//必须为成员函数，否则调用cout.operator<<(mealTime);函数，这表示operator<<()必须是类ostream的一个成员，而不是Time的一个类

{

 T.display();

 return out;

}

int main()

{

 Time t;

 cout<<t;

 system("pause");

}