public void khoitao() { Playercurrent = 0; Button btn = new Button(); Button btn2 = new Button(); btn.Image = Image.FromFile(Application.StartupPath + "\\Images\\icons8-circled-0-42.png"); btn2.Image = Image.FromFile(Application.StartupPath + "\\\\Images\\icons8-x-42.png"); this.Ds = new List <Button>(); Ds.Add(btn); Ds.Add(btn2); }