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前輩們，請教下，為什么if后有print和return，這個我能理解，但是下邊三個move后不需要再加print和return??？上邊的print是if后代碼塊的內容，按照理解，如果n不等于1，就不執行if后的代碼塊，計算機是如何理解按照if后的print執行打印和返回的?。?br />

慕少8082322

2019-01-04

源自：初識Python 7-5

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性感中單趙本山
2019-01-26

這是我對漢諾塔遞歸函數每一層怎么計算的一點看法

def?move(n,?a,?b,?c):????
????print?n,a,b,c????
????if?n?==1:????????
????????print?a,?'-->',?c????????
????????return????
????move(n-1,?a,?c,?b)????
????print?'one',n-1,a,c,b????
????move(1,a,b,c)????
????print?'two',1,a,b,c????
????move(n-1,?b,?a,?c)????
????print?'three',n-1,b,a,c
move(4,?'A',?'B',?'C')
運行結果：
4?A?B?C
3?A?C?B
2?A?B?C
1?A?C?B
A?-->?B
one?1?A?C?B
1?A?B?C
A?-->?C
two?1?A?B?C
1?B?A?C
B?-->?C
three?1?B?A?C
one?2?A?B?C
1?A?C?B
A?-->?B
two?1?A?C?B
2?C?A?B
1?C?B?A
C?-->?A
one?1?C?B?A
1?C?A?B
C?-->?B
two?1?C?A?B
1?A?C?B
A?-->?B
three?1?A?C?B
three?2?C?A?B
one?3?A?C?B
1?A?B?C
A?-->?C
two?1?A?B?C
3?B?A?C
2?B?C?A
1?B?A?C
B?-->?C
one?1?B?A?C
1?B?C?A
B?-->?A
two?1?B?C?A
1?C?B?A
C?-->?A
three?1?C?B?A
one?2?B?C?A
1?B?A?C
B?-->?C
two?1?B?A?C
2?A?B?C
1?A?C?B
A?-->?B
one?1?A?C?B
1?A?B?C
A?-->?C
two?1?A?B?C
1?B?A?C
B?-->?C
three?1?B?A?C
three?2?A?B?C
three?3?B?A?C