C++ Data Structure 2

C++ 友元函数的简单使用。

1. *.h

include "rectangle.h"
/*
  write function rectangle.h provides
 */
Rectangle::Rectangle(int len,int wd,int ht)
{
  length=len;
  width=wd;
  height=ht;
}

int Volume(Rectangle oRectangle)
{
  return oRectangle.length*oRectangle.width*oRectangle.height;
}

2.*.cpp

#include "rectangle.h"
/*
  write function rectangle.h provides
 */
Rectangle::Rectangle(int len,int wd,int ht)
{
  length=len;
  width=wd;
  height=ht;
}

int Volume(Rectangle oRectangle)
{
  return oRectangle.length*oRectangle.width*oRectangle.height;
}

3.main.cpp

#include<stdlib.h>
#include<iostream>
using namespace std;
#include "rectangle.h"

int main(void)
{
  Rectangle thisRectangle(6,7,9);
  int volume=Volume(thisRectangle);
  cout <<"Score is:_"<<volume<<endl;

  system("PAUSE");
  return 0;
}