我在实现名为MyTime的类时遇到了麻烦。特别是当涉及到方法部分时。如果有人可以查看.h和.cpp文件并指出我正确的方向，我将非常感激。
MyTime.h：
// MyTime.h
// insure that this header file is not included more than once
#pragma once
#ifndef _MYTIME_H_
#define _MYTIME_H_
#include <iostream>
using std::ostream;
using std::istream;
class MyTime
{private:
// 1 _ticks = 1/100 of a second
// 0 _ticks = 00:00:00.00 i.e. 12:00am
// a time is stored as a number of ticks since midnight
// for example 1234567 ticks would be 3:25:45.67am
long _ticks;
// the following static fields might come in handy
// 8,643,999 _ticks = 23:59:59.99 i.e. 11:59:59.99pm
static const long _lastTickOfTheDay = 8639999;
// 4,320,000 _ticks = 12:00:00.00 i.e 12pm i.e. noon
static const long _noon = 4320000;
// _ticks per second;
static const long _ticksPerSecond = 100;
// _ticks per minute;
static const long _ticksPerMinute = 6000;
// _ticks per hour;
static const long _ticksPerHour = 360000;
// _ticks per day
static const long _ticksPerDay = 8640000;
public:
// CONSTRUCTORS
// Default (explicit)
MyTime();
// Copy
MyTime(const MyTime & origMyTime);
// Parameterized (various useful overloads)
// Hours, Minutes, Seconds, Miliseconds
MyTime(int initHrs, int initMins, int initSecs, int initMilisecs);
// Hours, Minutes, Seconds
MyTime(int initHours, int initMinutes, int initSeconds);
// Hours, Minutes
MyTime(int initHours, int initMinutes);
// Ticks
MyTime(long initTicks);
// DESTRUCTOR
~MyTime();
// METHODS
// Accessors and mutators for:
// hours, minutes, seconds, ticks
int GetHours() const;
void SetHours(int newHours);
int GetMinutes() const;
void SetMinutes(int newMinutes);
int GetSeconds() const;
void SetSeconds(int newSeconds);
long GetTicks() const;
void SetTicks(int newTicks);
// SetTime (various useful overloads)
// Hours, Minutes, Seconds, Miliseconds
void SetTime(int newHrs, int newMins, int newSecs, int newMilisecs);
// Hours, Minutes, Seconds
void SetTime(int newHours, int newMinutes, int newSeconds);
// Hours, Minutes
void SetTime(int newHours, int newMinutes);
// Ticks
void SetTime(long newTicks);
// MyTime
void SetTime(const MyTime & aMyTime);
// Now
// a static function that returns a MyTime object
// initialized to the current time according to the system clock
static MyTime Now();
// Add (various useful methods)
// For adding amounts of time to this MyTime
// Hours
void AddHours(int moreHours);
// Minutes
void AddMinutes(int moreMinutes);
// Seconds
void AddSeconds(long moreSeconds);
// Ticks
void AddTicks(long moreTicks);
// MyTime
void AddTime(const MyTime & aMyTime);
// Compare
// Takes a MyTime argument
// Returns (zero) if the argument has the same time as this MyTime
// Returns (a positive int) if the argument is before this MyTime
// Returns (a negative int) if the argument is after this MyTime
int Compare(const MyTime & aMyTime) const;
// Equals
// Takes a MyTime argument
// Returns (true) if the argument has the same time
// as this MyTime, otherwise it returns (false).
bool Equals(const MyTime & aMyTime) const;
// Subtract (various useful methods)
// For subtracting amounts of time to this MyTime
// Hours
void SubtractHours(int lessHours);
// Minutes
void SubtractMinutes(int lessMinutes);
// Seconds
void SubtractSeconds(long lessSeconds);
// Ticks
void SubtractTicks(long lessTicks);
// MyTime
void MyTime::SubtractTime(const MyTime & aMyTime);
// OVERLOADED OPERATORS
// = (assignment - takes a MyTime)
MyTime operator= (const MyTime & aMyTime);
// +, += (Addition - takes a MyTime)
MyTime operator+ (const MyTime & aMyTime) const;
MyTime operator+= (const MyTime & aMyTime);
// >, <, >=, <=, ==, != (boolean relational test operators)
bool operator> (const MyTime & aMyTime) const ;
bool operator< (const MyTime & aMyTime) const ;
bool operator>= (const MyTime & aMyTime) const ;
bool operator<= (const MyTime & aMyTime) const ;
bool operator== (const MyTime & aMyTime) const ;
bool operator!= (const MyTime & aMyTime) const ;
// <<, >> stream insertion and extraction
friend ostream & operator<< (ostream & os, const MyTime & aMyTime);
friend istream & operator>> (istream & is, MyTime & aMyTime);};
#endif
到目前为止MyTime.cpp：
// MyTime.cpp
#include "MyTime.h"
/* private:
// 1 _ticks = 1/100 of a second
// 0 _ticks = 00:00:00.00 i.e. 12:00am
// a time is stored as a number of ticks since midnight
// for example 1234567 ticks would be 3:25:45.67am
long _ticks;
// the following static fields might come in handy
// 8,643,999 _ticks = 23:59:59.99 i.e. 11:59:59.99pm
static const long _lastTickOfTheDay = 8639999;
// 4,320,000 _ticks = 12:00:00.00 i.e 12pm i.e. noon
static const long _noon = 4320000;
// _ticks per second;
static const long _ticksPerSecond = 100;
// _ticks per minute;
static const long _ticksPerMinute = 6000;
// _ticks per hour;
static const long _ticksPerHour = 360000;
// _ticks per day
static const long _ticksPerDay = 8640000;
*/
//CONSTRUCTORS
// Default (explicit)
MyTime::MyTime()
{
_ticks = 0;
}
//Copy
MyTime::MyTime(const MyTime & origMyTime)
{
}
// Parameterized (various useful overloads)
// Hours, Minutes, Seconds, Miliseconds
MyTime::MyTime(int initHrs, int initMins, int initSecs, int initMilisecs)
{
}
// Hours, Minutes, Seconds
Mytime::MyTime(int initHours, int initMinutes, int initSeconds)
{
}
// Hours, Minutes
MyTime::MyTime(int initHours, int initMinutes)
{
}
// Ticks
MyTime::MyTime(long initTicks)
{
}
//DESTRUCTOR
// dealocate dynamic storage
MyTime::~MyTime()
{
}
//METHODS