using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
int a = 0;
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
a++;
if (a % 3 == 1)
{
pictureBox1.BackColor = Color.Red;
pictureBox2.BackColor = Color.Black;
pictureBox3.BackColor = Color.Black;
}
else if (a % 3 == 2)
{
pictureBox1.BackColor = Color.Black;
pictureBox2.BackColor = Color.Yellow;
pictureBox3.BackColor = Color.Black;
}
else
{
pictureBox1.BackColor = Color.Black;
pictureBox2.BackColor = Color.Black;
pictureBox3.BackColor = Color.Green;
}
}
private void timer1_Tick(object sender, EventArgs e)
{
a++;
if (a % 3 == 1)
{
pictureBox1.BackColor = Color.Red;
pictureBox2.BackColor = Color.Black;
pictureBox3.BackColor = Color.Black;
}
else if (a % 3 == 2)
{
pictureBox1.BackColor = Color.Black;
pictureBox2.BackColor = Color.Yellow;
pictureBox3.BackColor = Color.Black;
}
else
{
pictureBox1.BackColor = Color.Black;
pictureBox2.BackColor = Color.Black;
pictureBox3.BackColor = Color.Green;
}
}
}
}