只读出一个零的有:
9000999,9009099,9009909;
9099900;
9900099,9900990,9909009,9909090;
9990009,9990090,9990900
共11个
------------------------------------------------
只读出2个零的有:
9900909
9099090,9099009,9090990,9090099
共5个
只读出一个零的有:
9000999,9009099,9009909;
9099900;
9900099,9900990,9909009,9909090;
9990009,9990090,9990900
共11个
------------------------------------------------
只读出2个零的有:
9900909
9099090,9099009,9090990,9090099
共5个