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unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TForm1 = class(TForm)
Button1: TButton;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
var
i,j:integer;
r:real;
ch:char;
s:string[7];
begin
i:=10;
j:=100;
r:=1.0;
ch:='b';
s:='1234567890';
showmessage(inttostr(i)+inttostr(j));
showmessage(floattostr(r));
showmessage(ch);
showmessage(b);
end;
end.


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uses 
    Windows,  
    SysUtils,  
    Classes,  
    ShellAPI;  
function RunAndWait(FileName: string; Visibility: Integer): THandle;&nbs ......

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//×î³£ÓÃµÄ string
var
  str: string;   {¶¨Òå}
begin
  str := 'ÍòÒ»'; {¸³Öµ}
  ShowMessage(IntToStr(Length(str))); {³¤¶ÈÊÇ: 4}
end;
//³¤×Ö·û´® AnsiString; ÔÚµ±Ç°°æ± ......

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±¾À´ÒÔΪ£¬²»¾ÍÊǽ«Form1.ShowºÍForm1.Hideô£¬µ«È´¾ÍÊÇ´ïµ½²»µ½×Ô¼ºÏëÒªµÄ½á¹û
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×î½üÒ»¶Îʱ ......

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Delphi Óë C/C++ Êý¾ÝÀàÐͶÔÕÕ±í
DelphiÊý¾ÝÀàÐÍC/C++
ShorInt
8λÓзûºÅÕûÊý
char
Byte
8λÎÞ·ûºÅÕûÊý
BYTE,unsigned short
SmallInt
16λÓзûºÅÕûÊý
short
Word
16λÎÞ·ûºÅÕûÊý
unsigned short
Integer,LongInt
32λÓзûºÅÕûÊý
int,long
Cardinal,LongWord/DWORD
32λÎÞ·ûºÅÕûÊý
unsigned long
Int6 ......

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01.procedure TPortForm.FormCreate(Sender: Tobject);
02.var hr :thandle;
03.begin
04.hr:=createroundrectrgn(0,0,width,height,20,20);
05.setwindowrgn(handle,hr,true);
06.end;
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01.procedure TPortForm.FormCreate(Sender: Tobject);
02.var hr :thandl ......
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