def move(n,a,b,c):
if n<=0 :
print('参数不正确')
return
if n==1:
print('{} -> {}'.format(a , c))
else:
move(n-1,a,c,b)
move(n-1,b,a,c)
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岁益寒
def move(n,a,b,c):
if n<=0 :
print('参数不正确')
return
if n==1:
print('{} -> {}'.format(a , c))
else:
move(n-1,a,c,b)
print('{} -> {}'.format(a , c))
move(n-1,b,a,c)