using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Threading;

namespace WindowsFormsApplication2

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        private void Form1_Load(object sender, EventArgs e)

        {

            Control.CheckForIllegalCrossThreadCalls = false;

        }

        bool a;

        public void playGame()

        {

            Random rd = new Random();

            while (a)

            {

                this.label1.Text = rd.Next(0, 10).ToString();

                this.label2.Text = rd.Next(0, 10).ToString();

                this.label3.Text = rd.Next(0, 10).ToString();

            }

        }

        private void button1_Click(object sender, EventArgs e)

        {

            if (!a)

            {

                a=true;

                this.button1.Text = "暂停";

                Thread th = new Thread(playGame);

                th.IsBackground = true;

                th.Start();

            }

            else {

                this.button1.Text = "开始";

                a = false;

            }

        }

    }

}