C#：デジタル時計

Form1.cs

using System;
using System.Windows.Forms;

namespace デジタル時計
{
	public partial class Form1 : Form
	{
		public Form1()
		{
			InitializeComponent();
		}

		private void Form1_Load(object sender, EventArgs e)
		{
			this.Text = Application.ProductName;
			timer1.Interval = 500;
			timer1.Enabled = true;
		}

		private void timer1_Tick(object sender, EventArgs e)
		{
			DateTime d = DateTime.Now;
			label1.Text = string.Format("{0:00}:{1:00}:{2:00}", d.Hour, d.Minute, d.Second);
		}
	}
}