Winform 运行不卡和实时数据前台更新

分别是两个方法


private void button3_Click(object sender, EventArgs e)
        {
            for (int i = 1; i <= 100; i++)
            {

                Application.DoEvents();
                this.progressBar1.Value = i;
                Thread.Sleep(1000);
                this.label1.Text = i.ToString();
                listBox1.Items.Insert(0, i.ToString());
            }
        }

        private void button4_Click(object sender, EventArgs e)
        {
            Task task = new Task(n => TaskTest(), 0);
               task.Start();
        }

        private void TaskTest()
        {
            for (int i = 0; i < 10; i++)
            {
                //Application.DoEvents();
                this.progressBar1.Value = 10;
                Thread.Sleep(1000);
                this.label1.Text = i.ToString();
                listBox1.Items.Insert(0, i.ToString());
            }
        }