private void Form1_Load(object sender, EventArgs e)
        {
            Thread thread = new Thread(conn);
            thread.Start();
        }

        private void conn()
        {
            for (int i = 0; i < 10; i++)
            {
                MessageBox.Show(i.ToString());
            }
            this.Invoke(new CallBack(DoCallBack),new object[] {true});
        }

        public void DoCallBack(bool isSuccess)
        {
            if (isSuccess)
            {
                //button1.Click += new EventHandler(button1_Click);//第一种方法
                button1_Click(null, null);  //第二种方法
            }
            else
            {
                MessageBox.Show("数据加载失败");
            }
        }

        public delegate void CallBack(bool isSuccess);

        private void button1_Click(object sender, EventArgs e)
        {
            MessageBox.Show("测试成功");
        }