list0507.cpp

teach yourself C++ in 21 days 第五版

// Listing 5.7 - demonstrates use
// of default parameter values
#include <iostream>
  
int AreaCube(int length, int width = 25, int height = 1);
  
int main()
{
   int length = 100;
   int width = 50;
   int height = 2;
   int area;
  
   area = AreaCube(length, width, height);
   std::cout << "First area equals: " << area << "\n";
  
   area = AreaCube(length, width);
   std::cout << "Second time area equals: " << area << "\n";
  
   area = AreaCube(length);
   std::cout << "Third time area equals: " << area << "\n";
   return 0;
}
  
AreaCube(int length, int width, int height)
{
  
   return (length * width * height);
}