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namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
int c,d;
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
}
private void timer1_Tick(object sender, EventArgs e)
{
c = c + 1;
d = c % 3;
button1.Text = c.ToString();
if (d == 0)
{ button1.BackColor = System.Drawing.Color.FromName("Green");
button2.BackColor = System.Drawing.Color.FromName("White");
button3.BackColor = System.Drawing.Color.FromName("White");
}
if (d == 1)
{ button1.BackColor = System.Drawing.Color.FromName("White");
button2.BackColor = System.Drawing.Color.FromName("Red");
button3.BackColor = System.Drawing.Color.FromName("White");
}
if(d==2)
{ button1.BackColor = System.Drawing.Color.FromName("White");
button2.BackColor = System.Drawing.Color.FromName("White");
button3.BackColor = System.Drawing.Color.FromName("Yellow");
}
}
}
}
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