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delphiÖÐexit,abort,break,continue µÄÇø±ð

exit: Í˳öº¯ÊýÌå
abort: Óöµ½Òì³£,°²¾²´¦Àí,¾ÍÊDz»ÏÔʾ²»Ìáʾ
break: Í˳öµ±Ç°Ñ­»·Ìå,°üÀ¨for ,while, repeatµÈÑ­»·Ìå
continue: ½áÊøÑ­»·Äڵı¾´Î´¦Àí,¼ÌÐø´ÓÑ­»·ÌåµÄ¿ªÊ¼Î»ÖüÌÐøÖ´ÐÐ
Exit ÊÇÌø³öµ±Ç°´úÂë¿é£¬Ò²¾ÍÊǵ±Ç°º¯Êý£¬Ìø³öºóÊÇÒª¼ÌÐøÏòÏÂÖ´Ðеģ¨Èç¹ûÓкóÐø´úÂ룩¡£
Abort ÊÇ´Ó EAbort ¹ýÀ´µÄ£¬¿ÉÒÔ¼¤·¢ exception£¬ÆäʵÖʾÍÊÇ Abort = RaiseException()£¬ÊÇÒ»¸ö²»³öÏÖ¶Ô»°¿òµÄÒì³£¡£ËùÒÔ Abort µÄÐÐΪºÍÒì³£ÊÇÒ»ÑùµÄ£¬Æä´úÂëÖ´ÐÐ˳ÐòÒ²ÊÇfollowÒì³£µÄÁ÷³Ì¡£
ÀýÈ磺
try
(1) //Ö´ÐÐÁË
abort;
(2) //²»Ö´ÐÐ
exception
(3) //Ö´ÐÐÁË
end;
Óà Abort Äܹ»Ö´ÐÐ exception Àï±ßµÄ´úÂ룬µ«ÊÇÈç¹ûÓà Exit£¬¾ÍÖ±½ÓÀ뿪£¬²»¹Ü exception¡£
ÀýÈ磺
procedure p1;
begin
p2;
p3;
end;
procedure p2;
begin
abort; //exit;
end;
procedure p3;
begin
//showmessage()..
end;
Èç¹ûÓà Abort£¬ÔòÖ´Ðв»µ½ P3£¬Èç¹ûÓà Exit ¾ÍÄܹ»Ö´Ðе½ P3


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DelphiÖÐÁ÷µÄʹÓ㨱ȽÏÈ«Ã棩

Delphi ÖÐÁ÷µÄʹÓÃ(1) Óà TMemoryStream(ÄÚ´æÁ÷) ÈëÃÅ
Ç°ÑÔ:
Ëùν"Á÷", ¾ÍÊÇÒ»¶ÎÊý¾Ý»òÊÇÒ»¿éÄÚ´æ;
ÔÚ½øÐÐÁ÷²Ù×÷ʱ, ÎÒÃDz»±Ø¹ØÐÄÁ÷ÖеÄÊý¾Ýµ½µ×ÊÇʲô; Ö»ÐèÒªÖªµÀÁ÷µÄ´óСºÍµ±Ç°µÄÖ¸ÕëλÖÃ. ËùÒÔÁ÷Ö»ÓÐÁ½¸öÊôÐÔ:
Size¡¢Position.
¶ÔÁ÷µÄ²Ù×÷, ²»¹ý¾ÍÊǶÁÈ¡ºÍдÈë. ËùÒÔÁ÷×îÖ÷ÒªµÄ·½·¨¾ÍÊÇ Read ºÍ Write.
Ôںܶ࿠......

DELPHI TListBox (TStringsÀà)ɾ³ý¿ÕÐеķ½·¨

    ֮ǰ×öÒ»¸ö³ÌÐò£¬ÓÃListBox¶ÁÈëÒ»¸öÎı¾Îļþ£¬µ«Îı¾ÖÐÓпÕÐУ¬ÎªÁËɾ³ýÆäÖеĿÕÐУ¬ÕÛÌÚÁ˺ó¤Ê±¼ä¡£
    Ïȸø³öÒ»¶Î´úÂë¸ø´ó¼Ò¿´
var
  i:Integer;
begin
  ListBox1.Items.LoadfromFile('data.txt');
  for i:=0 to ListBox1.Count - 1 do
  begin
  ......

»ùÓÚDelphiµÄSocket I/OÄ£ÐÍÈ«½Ó´¥(×ܽá) [ת]

ת×Ô´ó¸»ÎÌhttp://www.delphibbs.com/keylife/iblog_show.asp?xid=30049
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¡¡¡¡ÕâºÍSocketÄ£Ðͷdz£ÀàËÆ¡£ÏÂÃæÎÒ¾ÍÒÔÀϳ½ÓÊÕÐżþΪÀý½²½âSocket I/OÄ£ÐÍ¡£
¡¡¡¡Ò»£ºselectÄ£ÐÍ
¡¡¡¡Àϳ·dz£Ïë¿´µ½Å®¶ùµÄÐÅ¡£ÒÔÖ ......

DELPHI²ÎÊý¼¸¸ö¸ÅÄîÉϵÄÇø±ð ÊÕ²Ø

DELPHI²ÎÊý¼¸¸ö¸ÅÄîÉϵÄÇø±ð ÊÕ²Ø
 ÒýÓòÎÊý£º
ÒýÓòÎÊýÓÃvar¹Ø¼ü×Ö±êʾ
procedure DoubleTheValue (var Value: Integer);
begin
  Value := Value * 2;
end;ÔÚÕâÖÖÇé¿öÏ£¬²ÎÊý¼È°ÑÒ»¸öÖµ´«µÝ¸ø¹ý³Ì£¬ÓÖ°ÑÐÂÖµ·µ»Ø¸øµ÷Óùý³ÌµÄ´úÂë¡£µ±ÄãÖ´ÐÐÍêÒÔÏ´úÂëʱ£º
var
  X: Integer;
begin
  X : ......

Delphi ¹Ø¼ü×ÖÏê½â[ÕûÀíÓÚ "³È×Ó" µÄÌû×Ó]


Delphi ¹Ø¼ü×ÖÏê½â[ÕûÀíÓÚ "³È×Ó" µÄÌû×Ó]
absolute
//ËüʹµÃÄãÄܹ»´´½¨Ò»¸öбäÁ¿, ²¢ÇҸñäÁ¿µÄÆðʼµØÖ·ÓëÁíÒ»¸ö±äÁ¿Ïàͬ.
var
Str: string[32];
StrLen: Byte absolute Str;
//Õâ¸öÉùÃ÷Ö¸¶¨Á˱äÁ¿StrLenÆðʼµØÖ·ÓëStrÏàͬ.
//ÓÉÓÚ×Ö·û´®µÄµÚ0¸öλÖñ£´æÁË×Ö·û´®µÄ³¤¶È, ËùÒÔStrLenµÄÖµ¼´×Ö·û´®³¤¶È.
begin ......
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