有这样一类数学问题，从内容情节上看，它是那样生动活泼、妙趣横生；从分析解答上讲，它又是那样别出心才、机智灵巧。人们常称这样的一类问题叫智巧趣题。智巧趣题不仅深受少年儿童喜爱，甚至成年人对之也乐此不疲，使得这类问题在历史的长河中，以其巨大的生命力长期广... There is such a kind of mathematical problem, from the content plot point of view, it is so lively and entertaining; from the analysis of answers, it is so out of mind, wit and smart. People often call such a type of problem called smart Fun topic. Qigong Fun Topic is not only loved by children and adolescents, but even adult people are always bored with it, making such issues long-term in its long history with its huge vitality ...