1 using System; 2 using System.Collections.Generic; 3 using System.ComponentModel; 4 using System.Data; 5 using System.Drawing; 6 using System.Linq; 7 using System.Text; 8 using System.Windows.Forms; 9 using System.Threading;10 11 namespace WindowsFormsApplication112 {13     public partial class MainForm : Form14     {15         public MainForm()16         {17             InitializeComponent();18         }19 20         delegate void SetMsg(string msg);21         //private void SetMsgInfo(string msg)22         //{23         //    this.textBox1.Text = msg; 24         //}25 26         private void button1_Click(object sender, EventArgs e)27         {          28             Thread thread = new Thread(M1);29             thread.Start();30         }31 32         void M1()33         {34             for (int i = 0; i < 10; i++)35             {36                 //this.Invoke(new SetMsg(SetMsgInfo), new object[] { i.ToString() });37                 this.Invoke(new SetMsg((o) => { this.textBox1.Text = o; }), new object[] { i.ToString() });//匿名方法不懂的可以去查一下。38                 Thread.Sleep(500);39             }40         }41     }42 } ================================================================================= 这段代码如果使用以后的代码去替换，也可以达到每秒变换this.label1.Text的目的，但是这个用户体验却很差：在变化值时，窗体不能移动。用上面的方法可以避开这个问题。

private void button1_Click(object sender, EventArgs e)        {            for (int i = 0; i < 10; i++)            {                this.label1.Text = i.ToString();                this.Update();                Thread.Sleep(1000);            }        }