一个定时器相关的简单例子 - 回复 "Timer008" 的问题

问题来源: http://www.cnblogs.com/del/archive/2008/07/09/1073218.html#1249648

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代码文件:

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unit Unit1;



interface



uses

  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

  Dialogs, ExtCtrls, StdCtrls;



type

  TForm1 = class(TForm)

    Button1: TButton;

    Timer1: TTimer;

    procedure FormCreate(Sender: TObject);

    procedure Button1Click(Sender: TObject);

    procedure Timer1Timer(Sender: TObject);

   end;



var

  Form1: TForm1;



implementation



{$R *.dfm}



procedure TForm1.FormCreate(Sender: TObject);

begin

  Timer1.Interval := 15000; {定时器每 15 秒执行一次}

  Timer1.Enabled := False;  {定时器默认是直接启动的, 先关闭它}

end;



procedure TForm1.Button1Click(Sender: TObject);

begin

  {启动定时器}

  Timer1.Enabled := True;

  {点击按钮是什么功能呢? 譬如是让按钮标题自动计数}

  Button1.Caption := IntToStr(StrToIntDef(Button1.Caption, 0) + 1);

end;



{定时去执行 Button1Click}

procedure TForm1.Timer1Timer(Sender: TObject);

begin

  Button1.Click;

end;



end.


 
   

窗体文件:

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object Form1: TForm1

  Left = 0

  Top = 0

  Caption = 'Form1'

  ClientHeight = 206

  ClientWidth = 339

  Color = clBtnFace

  Font.Charset = DEFAULT_CHARSET

  Font.Color = clWindowText

  Font.Height = -11

  Font.Name = 'Tahoma'

  Font.Style = []

  OldCreateOrder = False

  OnCreate = FormCreate

  PixelsPerInch = 96

  TextHeight = 13

  object Button1: TButton

    Left = 136

    Top = 112

    Width = 75

    Height = 25

    Caption = 'Button1'

    TabOrder = 0

    OnClick = Button1Click

  end

  object Timer1: TTimer

    OnTimer = Timer1Timer

    Left = 160

    Top = 80

  end

end