多线程下的 Lambda表达式

            Thread t2 = new Thread(() =>
            {
                for (int i = 1; i <= 10; i++)
                {
                    this.BeginInvoke(new Action(() =>
                    {
                        progressBar1.Value = i * 10;
                    }));
                    Thread.Sleep(1000);
                }
            });
            t2.IsBackground = true;
            t2.Start();