摘要: def reverse_s(s): if len(s) <= 1: return s else: #如果只写s[1:],只能返回n, return reverse_s(s[1:]) + s[0]s = "ilikepython"print reverse_s(s) 阅读全文
posted @ 2017-08-26 10:55 zy-- 阅读(143) 评论(0) 推荐(0)