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先分享个有趣的推理过程:一个小伙子到理发店理发,他问:“理发得等多长时间?”理发师看了一下店里的顾客说:“大约两个小时。”小伙子走了。几天后还是这个小伙子来理发,他一进门便问:“理发得等多长时间?”理发师看了一眼店里排队的顾客说:“大约三个小时。”小伙子走了。一个星期后这个小伙子又来了,问:“理发得等多长时间?”理发师看到店里已经满是顾客,说:“大约四个半小时。”小伙子走了。理发师望着店里的一个朋友说:“喂,比尔,跟着这家伙,看他去哪儿。他总是来问他理发得等多长时间,可是却从来没有回来过。”
First to share an interesting reasoning process: a young man to the barber shop haircut, he asked: “haircut wait for a long time?” The barber looked at the shop customer said: “about two hours.” gone. A few days later the boy came to the barber, and as soon as he entered the house, he asked: “How long does the barber have?” The barber glanced at the customer who stood in line and said: “For about three hours.” . A week later the boy came again and asked: “How long does the haircut last?” The barber saw the shop full of customers and said: “About four and a half hours.” The barber looked at a friend in the shop and said: “Hey, Bill, follow this guy and see where he is going.He always comes to ask how long he has to get a haircut, but he never comes back.” "