为啥这个只输出a-->b
def move(n, a, b, c):
if n == 1:
print a,'-->',c
return none
else:
move(n-1,a,c,b)
move(1,a,b,c)
move(n-1,b,a,c)
move(4, 'a', 'b', 'c')
def move(n, a, b, c):
if n == 1:
print a,'-->',c
return none
else:
move(n-1,a,c,b)
move(1,a,b,c)
move(n-1,b,a,c)
move(4, 'a', 'b', 'c')
2016-08-02
举报