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uses WinInet;
procedure TForm1.Button1Click(Sender: TObject);
begin
  if InternetGetConnectedState(nil, 0) then
    ShowMessage('ÒÑÁ¬½Ó')
  else
    ShowMessage('ÒѶϿª');
end;


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procedure
TForm
1.Button1Click(Sender: TObject);
var
MyMD5: TIdHashMessageDigest5;
Digest: T4x4LongWordRecord;
begin

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