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procedure copyfile(sourcefilename,targetfilename : String);
var f1, f2: tfilestream;
begin
 f1 := tfilestream.Create(sourcefilename, fmopenread);
 try
   f2 := tfilestream.Create(targetfilename, fmopenwrite or fmcreate);
   try
     f2.Copyfrom(f1, f1.Size);
   finally
     f2.Free;
   end;
 finally
   f1.Free;
 end;
end;
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Procedure FileCopy(const fromfile, Tofile: string);
var
 F1, F2: file;
 NumRead, Numwritten: integer;
 Buf: array[1..2048] of char;
begin
 AssignFile(F1, fromfile);
 reset(F1, 1);
 AssignFile(F2, Tofile);
 Rewrite(F2, 1);
 repeat
   BlockRead(F1, Buf, sizeof(Buf), NumRead);
   BlockWrite(F2, Buf, NumRead, Numwritten);
 until (NumRead = 0) or (Numwritten <> NumRead);
 closefile(F1);
 closefile(F2);
end;
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procedure CopyFile(fromFileName, ToFileName: string);
var
 f1, f2: file;
begin
 AssignFile(f1, fromFileName);
 AssignFile(f2, ToFileName);
 reset(f1);
 try
   Rewrite(f2);
   try
     if Lzcopy(TfileRec(f1).handle, TfileRec(f2).handle) < 0
       then
       raise EinoutError.Create('Îļþ¸´ÖÆ´íÎó');
   finally
     closefile(f1);
   end;
 finally
   closefile(f2);
 end;
end;
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function CopyFile(lpExistingFileName, lpNewFileName: PChar; bFailIfExists: BOOL): BOOL; stdcall;
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lpExistingFileName    £º    Ô­ÎļþÃû³Æ£»
lpNewFileName        £º  Ä¿±êÎļþÃû³Æ
bFailIfExists       &nbs


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