委托实现窗体异步示例

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public  partial  class  Form1 : Form {      private  delegate  void  AsyncDelegate();        public  Form1()      {          InitializeComponent();      }        private  void  Form1_Load( object  sender, EventArgs e)      {          AsyncDelegate yourwork = new  FlushClient(WorkFunc);          yourwork.BeginInvoke( null , null );      }        private  void  WorkFunc()      {          while  ( true )          {              this .textBox1.Text = DateTime.Now.ToString();              Thread.Sleep(1000);          }      }   }