Delphi 实现窗体倒计时进度条显示-木庄网络博客

本文整理自网络，侵删。

 演示：



unit Unit1;

interface

uses
  Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Vcl.ComCtrls, Vcl.ExtCtrls;

type
  TForm1 = class(TForm)
    Timer1: TTimer;
    ProgressBar1: TProgressBar;
    Label1: TLabel;
    procedure FormCreate(Sender: TObject);
    procedure Timer1Timer(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  Limit: Integer;
implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
  Limit:= 10;
  Label1.Caption:= '离定时期限还有'+IntToStr(Limit)+'秒..';
end;

procedure TForm1.Timer1Timer(Sender: TObject);
begin
  if Limit<=0 then
  begin
    Timer1.Enabled:= False;
    Close;
  end
  else
  begin
    ProgressBar1.Position:= 30-Limit;
    Label1.Caption:= '离定时期限还有'+IntToStr(Limit)+'秒..';
    Dec(Limit);
  end;
end;

end.

Delphi 实现窗体倒计时进度条显示

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