Delphi Thread

type
// 宣告執行序
  TTestThread = class(TThread)
  private
    FStrings: TStrings;
    procedure AddToStrings;
  protected
    procedure Execute; override;
  public
    constructor Create(CreateSuspended: Boolean; Strings: TStrings);
  end;

// 列出執行序的 ThreadID 
procedure TTestThread.AddToStrings;
begin
  FStrings.Add('ThreadID: ' + IntToStr(ThreadID));
end;

{
  CreateSuspended 建立時先不執行
  Strings 要列出訊息的 Strings
}
constructor TTestThread.Create(CreateSuspended: Boolean; Strings: TStrings);
begin
  inherited Create(CreateSuspended);
  FStrings := Strings;
end;

procedure TTestThread.Execute;
begin
  // 當未停止時列出執行序的 ThreadID
  while not Terminated do
  begin
    Synchronize(AddToStrings);
    Sleep(1000);
  end;
end;

var
 TestThread: TTestThread;

procedure TForm1.FormCreate(Sender: TObject);
begin
  // 印出主執行序 MainThreadID
  Memo1.Lines.Add('MainThreadID: ' + IntToStr(MainThreadID));
  // 建立執行序，並在建立時就執行運作
  TestThread := TTestThread.Create(False, Memo1.Lines);
end;

procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
  // 停止執行序
  TestThread.Terminate;
  TestThread.Free;
end;