c#多线程实现窗口延时关闭

private void sysSteup(object sender, MouseButtonEventArgs e){ Thread newWindowThread = new Thread(new ThreadStart(ThreadStartingPoint)); newWindowThread.SetApartmentState(ApartmentState.STA); newWindowThread.IsBackground = false; newWindowThread.Start(); Thread.Sleep(5000); try { newWindowThread.Abort(); } catch(Exception ex){}}static void ThreadStartingPoint(){ SetUp s = new SetUp(); s.ShowDialog(); }