WinForm中Timer倒計時

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添加一個Timer控制項：

在初始化代碼中

       public Form1()        {            InitializeComponent();            button_Read.Enabled = false;            button_Start.Enabled = false;            timer1.Enabled = true;            timer1.Interval = 1000;            timer1.Start();        }

雙擊Timer控制項，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 = "讀取ini.txt";                        button_Start.Text = "開始測試";                        button_Read.Enabled = true;                        button_Start.Enabled = true;                    }                }            }        }