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e72864f Apr 24, 2017
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executable file 25 lines (20 sloc) 488 Bytes
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# 利用递归函数计算阶乘
# N! = 1 * 2 * 3 * ... * N
def fact(n):
if n == 1:
return 1
return n * fact(n-1)
print('fact(1) =', fact(1))
print('fact(5) =', fact(5))
print('fact(10) =', fact(10))
# 利用递归函数移动汉诺塔:
def move(n, a, b, c):
if n == 1:
print('move', a, '-->', c)
else:
move(n-1, a, c, b)
move(1, a, b, c)
move(n-1, b, a, c)
move(4, 'A', 'B', 'C')