WinForm中Timer倒计时

添加一个Timer控件：

在初始化代码中

       public Form1()

        {

            InitializeComponent();

            button_Read.Enabled = false;

            button_Start.Enabled = false;

            timer1.Enabled = true;

            timer1.Interval = 1000;

            timer1.Start();

        }

双击Timer控件，在其事件中

  private void timer1_Tick(object sender, EventArgs e)

        {

            string time = button_Read.Text;

            string[] arr = time.Split(‘:‘);

            if (arr.Length == 2)

            {

                int min, second;

                if (int.TryParse(arr[0], out min) && int.TryParse(arr[1], out second))

                {

                    second--;

                    if (second < 0)

                    {

                        second = 59;

                        min--;

                    }

                    button_Read.Text = min + ":" + second;

                    button_Start.Text = min + ":" + second;

if (min ==0 && second ==0 )

                    {

                        button_Read.Text = "读取ini.txt";

                        button_Start.Text = "开始测试";

                        button_Read.Enabled = true;

                        button_Start.Enabled = true;

                    }

                }

            }

        }

WinForm中Timer倒计时