线程初学,点按钮,想要标题栏显示'线程运行了!'

Question

我这个运行了没一点反应,什么地方要改一下...???
unit Unit1;interfaceuses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;type
  TcThread= Class(TThread)
  protected
      procedure Execute;override;
      procedure ccc;
  end;  TForm1 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;var
  Form1: TForm1;implementation{$R *.dfm}procedure TcThread.ccc;
begin
form1.Caption:='线程运行了!';
end;
procedure TcThread.Execute;
begin
Synchronize(ccc);
end;
procedure TForm1.Button1Click(Sender: TObject);
var ggg:TcThread;
begin
ggg:=TcThread.Create(true);
end;end.

Answer 1

create(false)是创建线程后立即执行，而create(true)是创建后挂起。所以实际上你的线程并未运行。