1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,18,21,23,30,36,42

问题描述:

1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,18,21,23,30,36,42
谁是3的倍数

3 6 9 12 15 18 21 30 36 42