组建的应用

 1 private void Form1_Load(object sender, EventArgs e)
 2         {
 3             this.timer1.Interval = 500; //单位ms
 4             this.timer1.Start();
 5             label1.Text = DateTime.Now.ToString();
 6         }
 7 
 8         private void timer1_Tick(object sender, EventArgs e)
 9         {
10             DateTime time = DateTime.Now;
11             this.label1.Text = time.ToString();
12             if (time.Hour == 8 && time.Minute == 1 && time.Second == 1)
13                 MessageBox.Show("起床啦！！");
14         }