2010/11/19 紅綠燈

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace WindowsFormsApplication2
{
    public partial class Form1 : Form
      
    {
        int i,j;
        public Form1()
        {
            InitializeComponent();
            i = 0;
        }
        private void Form1_Load(object sender, EventArgs e)
        {
         
        }
        private void timer1_Tick(object sender, EventArgs e)
        {
        
             button1.Enabled=false;
             button2.Enabled=false;
             button3.Enabled = false;
            i++;
            i = i % 6;
            label1.Text = Convert.ToString(i);
            j++;
            j = j % 6;
            switch (j)
            {
             case 0:
               button1.Enabled=true;
               break;
             case 1:
               button2.Enabled=true;
               break;
             case 2:
               button3.Enabled=true;
               break;
             case 3:
               button3.Enabled = true;
               break;
             case 4:
               button3.Enabled = true;
               break;
             case 5:
               button3.Enabled = true;
               break;
         
            }
           
        }
        private void label1_Click(object sender, EventArgs e)
        {
          
        }
    }
}