一个21点的扑克牌游戏，玩家一共可以要五张牌，但如果牌的点数超过21，则为输了，自动出局；在不超过21点的情况下，玩家与庄家比牌的点数大小，大者为赢。-A 21-point game of cards, the player can be a total of five cards, but if the card points over 21, was lost, automatically excluded less than 21 points in the case, the play