/// <summary>
/// 开始游戏.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnStart_Click(object sender, EventArgs e)
{
game.InitGames();
// 洗牌.
game.Shuffle();
// 开始发牌.
game.StartGame();
// 开始以后，本按钮不可按.
btnStart.Visible = false;
this.btnHit.Visible = true;
this.btnStand.Visible = true;
lblResult.Text = String.Empty;
}