wpf 异步操作

new Thread(() =>            {                this.Dispatcher.BeginInvoke(new Action(() =>                {                   //添加操作                }));            }).Start();

public partial class MainWindow : Window    {        public MainWindow()        {            InitializeComponent();            for (int i = 0; i < 1000000; i++)            {            //text是一个textblock                text.Text = Convert.ToString(i);            }            new Thread(() =>            {                this.Dispatcher.BeginInvoke(new Action(() =>                {                    Thread.Sleep(5000);                    for (int i = 0; i < 1000000; i++)                    {                    //textInDis是一个textblock                        textInDis.Text = Convert.ToString(i);                    }                }));            }).Start();        }    }