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 player with the dealer than the point size card, greater for the win.