“21”点纸牌游戏，游戏规则：各个参与者设法使自己的牌达到总分21而不超过这个数值，扑克牌的分数取它们的面值，A充当1分或11分（由玩家自己选择一种分值），J,Q和K人头牌都是10分。庄家对付1—7个玩家，在一局开始时，包括庄家在内的玩家都有2张牌，玩家可以看到他们的所有牌及总分，而庄家有一张牌暂时是隐藏的。接下来，只要愿意，各玩家都有机会依次再拿一张牌。如果某个玩家的总分超过21分（称为引爆），那么，这个玩家就输了。在所有玩家都拿到额外的牌后，庄家将显示隐藏的牌，只要庄家总分小于或等于16，他就必须再拿牌。如果庄家引爆，那么还没有引爆的所有玩家获胜，引爆的玩家打成平局。否则，将余下的各玩家的总分和庄家总分比较，总分大者获胜，分数相同则打成平局。-"21" card game, the rules of the game: each participant trying to make their brand reach 21 without exceeding this value score, score cards take their face value, A acts as a point or 11 points (by the players themselves choose a kind of score), J, Q and K face cards are 10 points. Makers deal with 1-7 players, at the beginning of a round, the player including the dealer has 2, including cards, players can see all their cards and score, and the dealer has a card temporarily hidden. Then, if they wish, each player in turn has the opportunity to retake a card. If a player scores more than 21 points (called detonation), then the players lose. After all the players have to get additional cards, the dealer will display the hidden card, as long as the dealer score less than or equal to 16, he must retake card. If the dealer detonated, then all the players have not yet detonated win, players draw detonated. Otherwise, the rest of the score of each player and the dealer total score, score big