D语言访问数据成员

import std.stdio;

class Box { 
   public: 
      double length;   // Length of a Box 
      double breadth;  // Breadth of a Box 
      double height;   // Height of a Box 
}

void main() { 
   Box Box1 = new Box();    // Declare Box1 of type Box 
   Box Box2 = new Box();    // Declare Box2 of type Box 
   double volume = 0.0;     // Store the volume of a Box here  

   // Box 1 specification 
   Box1.height = 5.0; 
   Box1.length = 6.0; 
   Box1.breadth = 7.0; 

   // Box 2 specification 
   Box2.height = 10.0; 
   Box2.length = 12.0; 
   Box2.breadth = 13.0;

   // volume of Box 1 
   volume = Box1.height * Box1.length * Box1.breadth; 
   writeln(Volume of Box1 : ,volume);

   // volume of Box 2 
   volume = Box2.height * Box2.length * Box2.breadth; 
   writeln(Volume of Box2 : , volume); 
}