c#wiform中KeyDown事件

        private void Form1_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Z)
            {
                jiang = "一等奖";
            }
            if (e.KeyCode == Keys.X)
            {
                jiang = "二等奖";
            }
            if (e.KeyCode == Keys.C)
            {
                jiang = "三等奖";
            }
            
        }