窗体上放两个控件Label和Timer//窗体中设置属性
//timer1.Interval = 1000;
//timer1.Enabled = true;
//timer1.Tick事件代码timer1_Tick
Random random = new Random();
private void timer1_Tick(object sender, EventArgs e)
{
label1.Text = random.Next(10).ToString();
}
//timer1.Interval = 1000;
//timer1.Enabled = true;
//timer1.Tick事件代码timer1_Tick
Random random = new Random();
private void timer1_Tick(object sender, EventArgs e)
{
label1.Text = random.Next(10).ToString();
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
Timer timer = new Timer();
timer.Interval = 500;
timer.Tick += new EventHandler(timer_Tick);
timer.Start();
}
void timer_Tick(object sender, EventArgs e)
{
this.Invalidate();
}
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
Random r = new Random(DateTime.Now.Millisecond);
int value= r.Next(9); Rectangle rect = new Rectangle(100, 100, 100, 100);
e.Graphics.DrawString(value.ToString(), this.Font, SystemBrushes.ControlText, rect);
}