多线程Task异步/队列

线程Task的简单应用，防止阻碍GUI界面（.NET4.0）

  
 private void btn_Start_Click(object sender, EventArgs e)
        {
Task taskSuper = new Task(() =>
            {
                while (true)
                {
                    for (int i = 0; i < 3; i++)
                    {

                        Task task = new Task(() =>
                        {
                            WriteContent(i,"测试数据",DateTime.Now);
                        });

                        task.Start();
                        Thread.Sleep(timmers * 1000);

                    }
                }
            });
            taskSuper.Start();
}


  /// <summary>
        /// 写日志
        /// </summary>
        /// <param name="threadName"></param>
        /// <param name="content"></param>
        /// <param name="dt"></param>
        private void WriteContent(int threadName, string content, DateTime dt)
        {
            if (!string.IsNullOrEmpty(content))
            {
                Delcalmethod(() =>
                   {
                       Application.DoEvents();
                       ListViewItem lvi = new ListViewItem();
                       lvi.SubItems.Add("当前线程");
                       lvi.SubItems.Add("时间");
                       lvi.SubItems.Add("返回数据");
                       lvi.SubItems[0].Text = "当前线程："+threadName;
                       lvi.SubItems[1].Text = dt.ToLongTimeString();
                       lvi.SubItems[2].Text = content;
                       listData.Items.Insert(0, lvi);
                   });
            }

        }

消息队列模式更新UI界面：

 private Queue<int> threadQueue = new Queue<int>(100);//100可以自己定义
        private void button1_Click(object sender, EventArgs e)
        { 
            //100个对象入队，可以自己定义
            for (int i = 0; i < 100; i++)
            {
                threadQueue.Enqueue(i);
            };
            //队列控制线程
            Thread queueTask = new Thread(new ThreadStart(() =>
            {
                while (true)
                {
                    //获取队列中的第一个线程
                    var current= threadQueue.Dequeue();
                    Thread th = new Thread(new ThreadStart(() =>
                    {
                        TaskWork(current);
                    }));
                    th.Start(); //执行
                    //然后添加到最后一个
                    threadQueue.Enqueue(current);
                    //10秒后进行下一次操作
                    Thread.Sleep(2 * 1000);//2秒
                }
            }));
            queueTask.IsBackground = true;
            queueTask.Start();
            

        }




        private void TaskWork(int i)
        {
            Console.WriteLine("线程" + i);
          WriteContent(i.ToString(), "返回数据", DateTime.Now);
            
        }
     
        /// <summary>
        /// 写日志
        /// </summary>
        /// <param name="threadName"></param>
        /// <param name="content"></param>
        /// <param name="dt"></param>
       private void WriteContent(string threadName, string content, DateTime dt)
        {
            
            if (!string.IsNullOrEmpty(content))
            {
                Delcalmethod(() =>
                {
                    Application.DoEvents();
                    ListViewItem lvi = new ListViewItem();
                    lvi.SubItems.Add("当前线程");
                    lvi.SubItems.Add("时间");
                    lvi.SubItems.Add("返回数据");
                    lvi.SubItems[0].Text = threadName;
                    lvi.SubItems[1].Text = dt.ToLongTimeString();
                    lvi.SubItems[2].Text = content;
                    listData333.Items.Insert(0, lvi);
                });
            }

        }
        private void Delcalmethod(MethodInvoker method)
        {
            if (InvokeRequired)
                Invoke(method);
            else
                method();
        }