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*/
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TForm1 = class(TForm)
lbl1: TLabel;
Edit1: TEdit;
btn1: TButton;
procedure FormShow(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure btn1Click(Sender: TObject);
private
{ Private declarations }
function ShowRandom:string;
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.FormShow(Sender: TObject);
var
i,j:Integer;
c:Char;
begin
lbl1.Caption:=''; //Õâ¸öÊDZêÇ©
for j:=0 to 3 do //Ëæ»úÉú³É4¸öaµ½zµÄ×Ö·û´®
begin
i:=Random(24);
c:=chr(ord('a') + i);
lbl1.Caption:=lbl1.Caption + c;
end;
end;
procedure TForm1.FormCreate(Sender: TObject);
begin
Randomize;
end;
procedure TForm1.btn1Click(Sender: TObject);
begin
if edit1.Text=lbl1.Caption then //³É¹¦
ShowMessage('0k')
else
ShowMessage('error');
end;
function ShowRandom:string;
var
i,j:Integer;
c:Char;
begin
Result:='';
for j:=0 to 3 do //Ëæ»úÉú³É4¸öaµ½zµÄ×Ö·û´®
begin
Randomize;
i:=Random(24);
c:=chr(ord('a') + i);
Result:=Result + c;
end;
end;
end.
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