x= don't care
5xxx0 :4*3*2 =24个
4xxx0 :4*3*2 =24个
4xxx5 :4*3*2 =24个
3xxx0 :4*3*2 =24个
3xxx5 :4*3*2 =24个
2xxx0 :4*3*2 =24个
2xxx5 :4*3*2 =24个
1xxx0 :4*3*2 =24个
1xxx5 :4*3*2 =24个
用0.1.2.3.4.5这六个数字能组成多少个无重复数字且为5的倍数的五位数
=24*9
=216个