www.whkt.net > python课后题答案

python课后题答案

http://bbs.fishc.com/forum-243-1.html就在这里,每一课的帖子里面..

import randomscore_num = {}for _ in range(1000): score = random.randint(1, 100) score_num[score] = score_num.get(score, 0) + 1num_scores = {}print('作业5:统计分数出现次数')for score, num in sorted(score_num.items(), key=lambda sn:

#!/usr/bin/env python# coding = utf-8KNOWTREE = dict( # does it have a backhone? True = dict( # does it give birth to live babies True = "Mammal", False = dict( # does it have feathers True = "Bird", False = dict( # does it have gills True = "

哪里有带答案的 Python 习题1,使用getopt.getopt()优化当前的功能函数:[html] #!/usr/bin/python # -*- coding: utf-8 -*- #coding=utf-8 import os,sys import getopt print sys.argv CDROW='/home/zhouqian/test' def cdWalker(CDROW,

return给当前函数返回一个值,默认为None,return后面不带任何对象return dayup中,dayup就是返回的值例子:def Demo(a,b): c=a+b return cup=Demo(1,2)print(up)若程序执行到return语句,将不再执行下一行所有的语句代码.可以认为是函数的结束命令,并且返回了一个值

up_limit = int(input("please enter a positive integer:"))print(" the Fibonacci sequence up to %d:" %(up_limit))t1,t2=0,1a=[t1,t2]while 1: t1,t2=t2,t1+t2 if t2

def DayUp(df):dayup = 1.0for i in range(365):if i % 7 in [5,6,0]:dayup = dayupelse:dayup = dayup*(1+df)return dayupdayfactor = 0.001for i in range(10):print("DayUp: {:.3f}".format(DayUp(dayfactor)))dayfactor += 0.001

坦白的说这本书不是非常好,而且还和社区有版权问题,我个人比较喜欢《编程金典》基础讲的非常详细,后面的面向物件和多线程也不错.书中用的是TK图形库,比较简单,容易上手,但是如果非要用python做图形(比如为了跨平台)可能wxpythoy比TK会好那么一点点.不懂可以问我

单元测试 如果你听说过“测试驱动开发”(TDD:Test-Driven Development),单元测试就不陌生.单元测试是用来对一个模块、一个函数或者一个类来进行正确性检验的测试工作.比如对函数abs(),我们可以编写出以下几个测试用例:输入正

友情链接:wwfl.net | pznk.net | zxsg.net | jinxiaoque.net | tongrenche.com | 网站地图

All rights reserved Powered by www.whkt.net

copyright ©right 2010-2021。
www.whkt.net内容来自网络,如有侵犯请联系客服。zhit325@qq.com