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Delphi 7 µÄÒ»¸öÆæ¹ÖµÄBug

½üÀ´·¢ÏÖÒ»¸öDelphiĪÃûÆäÃîµÄbug£¬µ±Ê¹ÓÃSetOptionalParamʱ£¬²»ÄÜʹÓÃÒ»Á¬´®Êý×ÖµÄ×Ö·û´®£¬Èç'101'£¬×¢Ò⣬ÊÇ´øÒýºÅµÄ¡£ÔÚSaveToFileʱ£¬¾Í»á³öÏÖ'Invalid field type'µÄÒì³££¬ÕæÊÇ°Ù˼²»µÃÆä½â£¡Á¬'001'ÕâÖÖ´®Ò²²»ÐУ¬È¥µôÒýºÅ£¬Ö±½Ó°´Êý×Ö¸³Öµ£¬ÔòÕý³£¡£
procedure TForm1.Button1Click(Sender: TObject);
var
  cds:TClientDataSet;
begin
  cds:=TClientDataSet.Create(nil);
  with cds do
  begin
    FieldDefs.Add('f1',ftString,50);
    CreateDataSet;
  end;
  cds.SetOptionalParam('ppppp','101');
  cds.SaveToFile('c:\sss.dat'); //³öÏÖÒì³££ºInvalid field type!£¬°Ñ101¸ÄΪabc£¬Õý³£
  cds.Free;
end;


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¡¡¡¡DelphiÓïÑÔ£¬ÎÞÂÛÊÇ´Ó¿ª·¢Ëٶȡ¢»¹ÊÇÔËÐÐËٶȡ¢»¹ÊDZàÒëËٶȡ¢»¹ÊDZàÒëÖ®ºóµÄÖ´ÐÐÎļþÌå»ý£¬¶¼ÊÇÊýÒ»Êý¶þµÄ¡£Òò´Ë±»×÷Ϊ¹²ÏíÈí¼þ¡¢¿ª·¢²úÆ·¡¢ÖÆ×÷“ÂÌÉ«Èí¼þ”µÄÊ×Ñ¡¡£µ«ÊÇ£¬ÓÉÓÚÖî¶àÔ­Òò£¬DelphiÖУ¬ÓÐһЩ¿Ø¼þ£¬´æÔÚһЩbug¡£²»ÂÛ¹ã´ó¼¼ÊõÈËÔ±ÈçºÎ·´Ó¦£¬Delphi¹Ù·½¾ÍÊÇ“ÊÓ¶ø²»¼û”¡£ÓÐÎÊÌ⣬È˼ ......

Delphi + Asm TBitsÀàµÄѧϰ

¼¼Êõ½»Á÷,DH½²½â. ÔÚD2010µÄclassesÖÐÓиöTBitsÀà,Õâ¸öÀàÖ÷ÒªÊÇλ²Ù×÷µÄ. TBits = class
private
FSize: Integer;
FBits: Pointer;
procedure Error;
procedure SetSize(Value: Integer);
procedure SetBit(Index: Integer; Value: Boolean);
function GetBit(Index: Integer): Boole ......

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import java.util.Calendar ......
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