前言1988年举行的全国高中数学联赛中,有如下一题:有甲、乙两队进行围棋擂台赛,各有队员七名(事先编定出场顺序).两队各出一名队员,败者被淘汰,胜者继续和另一方下一名出场队员比赛.直到有一方全被淘汰,则该方为败,这个全过程称为一个比赛过程.问有多少种这 Foreword In the National High School Mathematics League held in 1988, there were the following questions: There were two teams of A and B who played in the Weld Tournament, each of which had seven players (preliminarily scheduled appearance order). Each team had one team member and each player lost. After being eliminated, the winner continues to compete with the next player in the other side. Until one side is completely eliminated, the side is defeated. This whole process is called a match process.