Re: [討論] 計程作業我的寫法

[stradivaris (Bach's Largo..........)]

接下來是作業6-8，同樣亦寫了三個檔
第一，tick.h
#ifndef TICK_H
#define TICK_H

class Time {
public:
   Time( int = 0, int = 0, int = 0 );  // constructor

   // set functions
   void setTime( int, int, int );  // set hour, minute, second
   void setHour( int );   // set hour
   void setMinute( int ); // set minute
   void setSecond( int ); // set second

   // get functions
   int getHour();         // return hour
   int getMinute();       // return minute
   int getSecond();       // return second

   void printStandard();  // output standard time
   void tick(Time,const int);

private:
   int hour;              // 0 - 23
   int minute;            // 0 - 59
   int second;            // 0 - 59
};

#endif

第二，tick.cpp
#include <iostream>

using namespace std;

#include "tick.h"

// Constructor function to initialize private data.
// Calls member function setTime to set variables.
// Default values are 0 (see class definition).
Time::Time( int hr, int min, int sec )
   { setTime( hr, min, sec ); }

// Set the values of hour, minute, and second.
void Time::setTime( int h, int m, int s )
{
   setHour( h );
   setMinute( m );
   setSecond( s );
}

// Set the hour value
void Time::setHour( int h )
   { hour = ( h >= 0 && h < 24 ) ? h : 0; }

// Set the minute value
void Time::setMinute( int m )
   { minute = ( m >= 0 && m < 60 ) ? m : 0; }

// Set the second value
void Time::setSecond( int s )
   { second = ( s >= 0 && s < 60 ) ? s : 0; }

// Get the hour value
int Time::getHour() { return hour; }

// Get the minute value
int Time::getMinute() { return minute; }

// Get the second value
int Time::getSecond() { return second; }

// Print time in standard format
void Time::printStandard()
{
   cout << ( ( hour == 0 || hour == 12 ) ? 12 : hour % 12 )
        << ":" << ( minute < 10 ? "0" : "" ) << minute
        << ":" << ( second < 10 ? "0" : "" ) << second
        << ( hour < 12 ? " AM" : " PM" );
}
void Time::tick(Time tt,const int count)
{
   cout << "Incrementing second " << count
        << " times:\nStart time: ";
   tt.printStandard();

   for ( int i = 0; i < count; i++ ) {
      tt.setSecond( ( tt.getSecond() + 1 ) % 60);
          if (tt.getSecond() == 0)
          {
                  tt.setMinute( (tt.getMinute() + 1) % 60);

      if ( tt.getMinute() == 0 )
         tt.setHour( ( tt.getHour() + 1 ) % 24);
          }

      cout << "\nsecond + 1: ";
      tt.printStandard();
   }

   cout << endl;
}

第三，6-6.cpp
#include <iostream>

using std::cout;
using std::endl;

#include "tick.h"

int main()
{
   Time t;

   t.setTime( 10, 58, 57 );
   t.tick( t, 3 );
   t.setTime( 10, 59, 57 );
   t.tick( t, 3 );
   t.setTime( 11, 59, 57 );
   t.tick( t, 3 );
   return 0;
}

--
Bach partita & sonata for violin solo
My favorite:
Henryk Szerying, Arthur Grumiaux, Nathan Milstein

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