private void Form1_KeyDown(object sender, KeyEventArgs e)
{
switch (e.KeyCode)
{
case Keys.W:
this.pictureBox1.Top -= 3;
break;
case Keys.S:
this.pictureBox1.Top += 3;
break;
case Keys.A:
this.pictureBox1.Left -= 3;
break;
case Keys.D:
this.pictureBox1.Left += 3;
break;
default:
break;
}
}