如果把1,1,0,2,3选一个五位数共有多少种可能?求学霸解答答:1开头的五位数有24种 2开头的五位数有12种 3开头的五位数有12种 所以一共48种 21103.21130.21301.21310.21013.21031.20311.20131.20113.23011.23101.23110.31102.31120.30112.30121.30211.32110.32101.32011.31021.31012.31210.31201 11023,11032,11302,11320,11230,11203,10123,10132...