One of the C + + code learning: Combinatorial Pattern examples

1#include"AbstractFile.h" voidAbstractfile::add (abstractfile*) 2 { 3}voidAbstractfile::remove ()4 { 5}voidabstractfile::d isplay ()6 { 7} #include"Folder.h" 8Folder::folder (stringfilename)9 { Ten      This->filename=filename; One}voidFolder::remove () A {  -}voidFolder::add (Abstractfile *p) - {  the M_vabstractfile.push_back (p); -}voidfolder::d isplay () - {  -cout<<"+"<<filename<<Endl; +Vector<abstractfile*>::iterator it=M_vabstractfile.begin (); -      for(; It!=m_vabstractfile.end (); + +it) +     {  A(*it)display (); at     }  - }  -#include"imagefile.h"  -  voidImagefile::add (abstractfile*p) - {  - }  inImagefile::imagefile (stringfilename) - {  to      This->filename=filename; +}voidImagefile::remove () - {  the}voidimagefile::d isplay () * {  $cout<<"Picture Output"<< This->filename<<Endl;Panax Notoginseng }  -#include"videofile.h"  theVideofile::videofile (stringfilename) + {  A      This->filename=filename; the}voidVideofile::add (abstractfile*p) + {  -}voidVideofile::remove () $ {  $}voidvideofile::d isplay () - {  -cout<<"Image Output"<< This->filename<<Endl; the }  -#include <stdio.h>Wuyi#include"AbstractFile.h"  the#include"Folder.h"  -#include"imagefile.h"  Wu#include"videofile.h" intMain () - {  AboutAbstractfile *p=NewFolder"folder"), *p3,*p2,*P4; $Folder *P1; -p3=NewImageFile ("ImageFile");  -P2=NewVideofile ("Vediofile");  -p4=NewImageFile ("Imagefile2");  Ap1=NewFolder"Folder1");  +P->Add (p3); theP->Add (p2); -        $P1->Add (p4); theP->Add (p1); theP->display (); the    the     return 0;  -}

One of the C + + code learning: Combinatorial Pattern examples