0的两侧有3种情况:34,35,45.
1)304:i)3047,304725169x(x表示无法继续).
ii)3048,30485,304859627x;30485169x;30485269x
iii)3049,304961527x,30496251x,30496258x,3049627x,
iv)3041,304158x,304159627x,30416258x,30416259x,
2)305,
3)405,
剩下部分留给您练习.
0的两侧有3种情况:34,35,45.
1)304:i)3047,304725169x(x表示无法继续).
ii)3048,30485,304859627x;30485169x;30485269x
iii)3049,304961527x,30496251x,30496258x,3049627x,
iv)3041,304158x,304159627x,30416258x,30416259x,
2)305,
3)405,
剩下部分留给您练习.