C + + file Cut Copy Delete

When we write some programs that have destructive programs, we tend to cut and delete programs and so on.

Here is a brief explanation of the Cut copy deletion,

Copying of files

#include <Windows.h>  #include <stdio.h>    int main ()  {      DWORD GetLastError;      if (! Copyfilea ("C:\\1.txt", "F:\\1.txt", false))      {          printf_s ("file copy failed \ n");          GetLastError = GetLastError ();          return-1;      }      return 0;  }

After the operation we can find that we can move the 1.txt from the C drive to the F drive.

The following function is explained below.

CopyFile function

BOOL WINAPI CopyFile (    _in_ lpctstr lpexistingfilename,    _in_ lpctstr lpnewfilename,    _in_ bool    Bfailifexists  );

First parameter: The name of a file that exists

Second parameter: The name of a new file

Third parameter: If there is a file with the same name true then no copy is made, False is overwrite.

Return value: Success returns a non-0 number, failure returns 0, and calling GetLastError () can get an error message.

Here is the deletion code for the file

#include <Windows.h>  #include <stdio.h>    int main ()  {      DWORD GetLastError;        if (! DeleteFileA ("C:\\1.txt"))      {          GetLastError = GetLastError ();          printf_s ("c:\\1.txt delete failed");          return-1;        }      if (! DeleteFileA ("F:\\1.txt"))      {          GetLastError = GetLastError ();          printf_s ("f:\\1.txt delete failed");          return-1;      }      printf_s ("Delete succeeded \ n");          return 0;  }

DeleteFile function

BOOL WINAPI DeleteFile (    _in_ lpctstr lpfilename  );

The parameter here is the name of the file to be deleted

return value:

The success returns a non-0 number, the failure returns 0, and the call to GetLastError () gets the error message.

Here is the cut of the file

#include <Windows.h>  #include <stdio.h>    int main ()  {      if (! Movefilea ("C:\\1.txt", "F:\\1.txt"))      {          DWORD GetLastError;          Getlasterror=getlasterror ();          printf_s ("copy failed");          return-1;      }      printf_s ("Copy succeeded \ n");      return 0;  }

The parameters and return values of the function are similar to the one above, and are not explained here.

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