一次偶然的机会 ,笔者发现两个小朋友甲和乙在玩儿一种扑克牌游戏 .每人手中都有一副扑克牌 (不含大、小王 ,共 5 2张 ) ,但两副扑克牌的顺序不一样 .游戏的规则是 :将一副扑克牌的上下两张同时抽出 ,如果这两张扑克牌点数相同 (例如 ,红桃 8和梅花 8的点数相同 ) ,就把它们甩 By chance, the author discovered that two children A and B are playing a poker game. Each player has a deck of playing cards (not including big and small kings, a total of 52), but two pairs of playing cards. The order is not the same. The rule of the game is: Take two cards from the top and bottom of a deck of cards. If the two cards have the same number of points (for example, the same number of points for the 8 and 8 clubs), throw them away.