古典概型的两个特点:(1)做一次试验,可能出现的结果是有限个.(2)每次试验中,每种试验结果出现的可能性是等同的.古典概型在概率中占有相当重要的地位,这类问题解法多样,技巧性强,并且经常用到排列组合的知识.下面仅就其中的随机取数问题来谈谈古典概型的计算. Two characteristics of the classical model: (1) In a test, there may be a limited number of results. (2) In each test, the possibility of the appearance of each test result is equivalent. The classical model assumes probability. Quite a matter of importance, this type of problem has a variety of solutions and skillfulness, and often uses the knowledge of permutations and combinations. The following is a brief discussion on the calculation of classical probability models with regard to the problem of random numbers.