１９９４年，美国人纳什获诺贝尔经济学奖，其原因是在博弈论领域的贡献。关于弈论，流传最广的是一个叫“囚徒困境”的故事：有两个人，纵火之后逃被警察抓住了。因为证据不充分，法官分别对他们说，如你招了，他不招，那么你会作证人而被无罪释放，他将被１５年徒刑；如果你 In 1994, the American Nash won the Nobel Prize in Economics for its part in the field of game theory. On the game theory, the most widely circulated is a story called Prisoners’ Dilemma: Two people were caught by the police after arson. Because of insufficient evidence, the judge separately told them that if you recruit, he does not recruit, then you will be acquitted of being a witness and he will be sentenced to 15 years in prison; if you