最核心代码：

private void theMainForm_Load(object sender, EventArgs e)
        {
            // Prevent the framework from checking what thread the GUI is updated from.

            theMainForm.CheckForIllegalCrossThreadCalls = false;

            // Create our worker threads and name them. 

            // The name will be used to associate a thread with a specific ListBox.

            worker1 = new Thread(new ThreadStart(UpdateListBox));
            worker1.Name = "Worker1";

            worker2 = new Thread(new ThreadStart(UpdateListBox));
            worker2.Name = "Worker2";

            worker3 = new Thread(new ThreadStart(UpdateListBox));
            worker3.Name = "Worker3";

            worker4 = new Thread(new ThreadStart(UpdateListBox));
            worker4.Name = "Worker4";

            // Get all the threads running.

            Start();
        }