Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

DELPHI 2005ÖÐÉ趨RS232£¨´®¿Ú£©¿Ø¼þ£¨MSCOMM£©µÄ·½·¨

ÔڵͰ汾ÖÐÉ趨MSCOMM¿Ø¼þ£¬Êǵ¼ÈëMSCOMM×é¼þ£¬È»ºó¾Í¿ÉÒÔ¿´¼ûMSCOMM¿Ø¼þµÄµç»°µÄͼ±êÁË£¬µ«ÊÇÔÚDELPHI 2005»òÒÔÉÏ°æ±¾ÖоͱØÐëÏȰѴ˿ؼþ´´½¨µ½°üÖУ¨BPL£©È»ºóµ¼ÈëBPL£¬ÄǸöµç»°Í¼±ê¾Í¿ÉÒÔ¿´¼ûÔÚ¹¤¾ßÌõÉÏÁË¡£ÎÒÊÔÁ˶àÉٻزÅÊÔ³öÀ´µÄ¡£


Ïà¹ØÎĵµ£º

Delphi 쵀RTTI

Ŀ¼
===============================================================================
¡Ñ RTTI ¼ò½é
¡Ñ Àà(class) ºÍ VMT µÄ¹Øϵ
¡Ñ Àà(class)¡¢ÀàµÄÀà(class of class)¡¢Àà±äÁ¿(class variable) µÄ¹Øϵ
¡Ñ TObject.ClassType ºÍ TObject.ClassInfo
¡Ñ is ºÍ as ÔËËã·ûµÄÔ­Àí
¡Ñ TTypeInfo – RTTI ÐÅÏ¢µÄ½ ......

Delphi + DBµÄ²éѯÓÅ»¯Éè¼Æ˼Ïë

¾­µä°¸Àý·ÖÏí Ôݲ»Éæ¼°·ÖÇø±í,±íÉè¼ÆµÈ Ö»´Ó±È½ÏdzµÄ½Ç¶ÈÀ´ÓÅ»¯
1.Ïȼì²é³ÌÐò ¼ì²éÄ£ÐͲãµÄÉè¼ÆÓë±àÂëÊÇ·ñºÏÀí ½«ºÍÕâ¸ö±íÓÐÓа󶨵ÄÊý¾Ý¸ÐÖª¿Ø¼þÈ«²¿È¥µô¡£
2.¹ÀËãÒ»¸öÊý¾ÝµÄ×î´óÁ¿ ¿ÉÒÔ´ÓÉè¼Æ½Ç¶È Ò²¿ÉÒÔ´Ó¿Í»§ÌṩµÄÊý¾Ý·ÖÎö δÀ´Ò»¶¨ÖÜÆÚÄÚµÄÔ¤Ôö³¤Á¿
3.½«ÌõÂëµÄ³¤¶È±£´æÆðÀ´£¬ÏÈÓÃÌõÂëµÄ³¤¶È½øÐйýÂË£¬Èç¹û80%ÒÔÉϵ ......

DelphiÖÐʵÏÖ¼ÓÔØINFÇý¶¯³ÌÐò£¡


°ïÖúÒ³ÔÚhttp://delphi.about.com/cs/adptips2003/a/bltip0203_2.htm
×Ô¼ºÔÚʵÏֵĹý³ÌÖеľßÌå¹ý³ÌÈçÏ£º
function InstallInf(const PathName: string; hParent: HWND): Boolean;
var
  instance: HINST;
begin
  instance := ShellExecute(hParent,
      PChar('open ......

delphi DBGridÓ¦ÓôóÈ«

 ÔÚ Delphi ÓïÑÔµÄÊý¾Ý¿â±à³ÌÖУ¬DBGrid ÊÇÏÔʾÊý¾ÝµÄÖ÷ÒªÊÖ¶ÎÖ®Ò»¡£µ«ÊÇ DBGrid ȱʡµÄÍâ¹ÛδÃâÏԵõ¥µ÷ºÍȱ·¦´´Òâ¡£Æäʵ£¬ÎÒÃÇÍêÈ«¿ÉÒÔÔÚÎÒÃǵijÌÐòÖÐͨ¹ý±à³ÌÀ´´ïµ½ÃÀ»¯DBGrid Íâ¹ÛµÄÄ¿µÄ¡£Í¨¹ý±à³Ì£¬ÎÒÃÇ¿ÉÒԸıä DBGrid µÄ±íÍ·¡¢Íø¸ñ¡¢Íø¸ñÏßµÄÇ°¾°É«ºÍ±³¾°É«£¬ÒÔ¼°Ïà¹ØµÄ×ÖÌåµÄ´óСºÍ·ç¸ñ¡£
    ......

delphi ¼Ó×Ö·û´®Ïà¼Ó

procedure TForm1.Button2Click(Sender: TObject);
var
name:String ;
begin
   name := edit2.Text ;
   name := '%' + name ;
   query1.Close ;
   query1.SQL.Clear ;
   query1.SQL.Add('select * from gjh_t where name like '''+name+'''') ;
 &nb ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ