发布网友 发布时间:2022-04-27 06:07
共4个回答
热心网友 时间:2022-06-27 09:34
假如5个数是1,2,3,4,5,那会有以下排列:123,124,125,132,134,135,142,143,145,152,153,154,213,214,215,231,234,235,241,243,245,251,253,254,312,314,315,321,324,325,341,342,345,351,352,354,412,413,415,421,423,425,431,432,435,451,452,453,512,513,514,521,523,524,531,532,534,541,542,543。一共60个。如果数字不能重复有10种
热心网友 时间:2022-06-27 09:34
卡西欧计算机上按5P3,等于60.排列组合,可以重复有60种,不可重复有10种
热心网友 时间:2022-06-27 09:35
三个数按顺序排为60,三个数不分顺序为10组
热心网友 时间:2022-06-27 09:36
60