function Get_FileSize(sFile: string): Integer;
var
f: file of Byte;
begin
AssignFile(f, sFile);
{$I-}
Reset(f);
{$I+}
CloseFile(f);
Result := FileSize(f);
if IOResult <> 0 then Result := -1;
end;
var
f: file of Byte;
begin
AssignFile(f, sFile);
{$I-}
Reset(f);
{$I+}
CloseFile(f);
Result := FileSize(f);
if IOResult <> 0 then Result := -1;
end;
var
f: file of Byte;
begin
AssignFile(f, sFile);
{$I-}
Reset(f);
{$I+}
CloseFile(f);
Result := FileSize(f);
if IOResult <> 0 then Result := -1;
end;
var
f: file of Byte;
begin
AssignFile(f, sFile);
{$I-}
Reset(f);
{$I+}
Result := FileSize(f);
CloseFile(f); //换个位置
if IOResult <> 0 then Result := -1;
end;//理论上应该是
function Get_FileSize(sFile: String): Integer;
var
pFile: PFILE;
begin
Result := -1;
pFile := fopen(PChar(sFile), 'rb');
if Assigned(pFile) then Exit;
fseek(pFile, Longint(0), SEEK_END);
Result := ftell(pFile);
fclose(pFile);
end;
pFile: PFILE; //PFILE 是什么?