python高效编程技巧6（如何实现用户的历史记录功能）

如何实现用户的历史记录功能

#!/usr/bin/env python# -*- coding:utf-8 -*-from random import randintfrom collections import dequeN = randint(0, 100)deque_result = deque([], 5)def guess(k):    if k == N:        print "right"        return True    if k < N:        deque_result.append(k)        print "%s is less than N" % k    else:        deque_result.append(k)        print "%s is greater than N" % k    return Falsewhile True:    line = raw_input("please input a number:")    if line.isdigit():        k = int(line)        if guess(k):            break