private void button1_Click(object sender, EventArgs e)
        {
            this.timer1.Interval = 1000;//设置每隔一秒钟执行一次
            this.timer1.Enabled = true;
            this.timer1.Start();
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            //方法1
            
            //方法2

        }