C#学习-多线程小练习

Posted 2020-06-29 Kimisme

1.双色球案例

namespace _18双色球案例
{
    public partial class Form1 : Form
    {
        private bool IsRunning;
        private List<Label> lbList = new List<Label>();
        public Form1()
        {
            InitializeComponent();
        }
        /// <summary>
        /// 保存当前线程
        /// </summary>
        private Thread ThreadS { get; set; }
        /// <summary>
        /// 启动线程
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnStatt_Click(object sender, EventArgs e)
        {
            Thread thread = new Thread(new ThreadStart(() =>
            {
                IsRunning = true;
                Random ran = new Random();
                while (IsRunning)
                {
                    foreach (Label label in lbList)
                    {
                        if (label.InvokeRequired)
                        {
                            label.Invoke(new Action<string>(s => label.Text = s), ran.Next(0, 10).ToString());
                        }
                        else
                        {
                            label.Text = ran.Next(0, 10).ToString();
                        }
                    }
                    Thread.Sleep(200);
                }
            }));
            thread.IsBackground = true;
            thread.Start();
            ThreadS = thread;
        }

        /// <summary>
        /// 终止线程
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnStop_Click(object sender, EventArgs e)
        {
            IsRunning = false;
            if (ThreadS == null || !ThreadS.IsAlive)
            {
                return;
            }
            else
            {
                ThreadS.Abort();
            }
        }
        /// <summary>
        /// 动态创建label
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Form1_Load(object sender, EventArgs e)
        {
            for (int i = 0; i < 6; i++)
            {
                Label lb = new Label();
                lb.Text = i.ToString();
                lb.AutoSize = true;
                lb.Location = new Point(50 * i + 50, 100);
                this.Controls.Add(lb);
                lbList.Add(lb);
            }
        }
    }
}

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