动态参数    *args   **kwargs   *args  动态参数,万能参数 # args 接受的就是实参对应的  所有位置参数,并将其放在元祖中. def func(*args): print(args) func(1,2,3,4,5,6) # (1, 2, 3, 4, 5, 6) # 形参对应顺序:   位置参数, *args  ,默认参数. def func(a,b,c,*args,sex = '男'): print(a) print(b) print(c) print(args…

Python版本:python 3.2.2 电脑系统:win7旗舰 实例来源:python菜鸟教程100例 #!/usr/bin/python # -*- coding: UTF-8 -*- import string import math import time import sys import os #import pygame #eg1:There are 1, 2, 3, 4 numbers, can be composed of a number of different and…

https://www.analyticsvidhya.com/blog/2015/08/common-machine-learning-algorithms/?spm=5176.100239.blogcont61037.12.0MhmIg https://yq.aliyun.com/articles/61037?spm=5176.100239.bloglist.110.rlSDN9 We are probably living in the most defining period of hu…

#瓦登尔湖词频统计: import string path = 'D:/python3/Walden.txt' with open(path,'r',encoding= 'utf-8') as text: words = [raw_word.strip(string.punctuation).lower() for raw_word in text.read().split()] words_index = set(words) counts_dict = {index:words.count(…

如果你已经把基础看完,可以尝试一下看看以下例子了,如果不会做也不要紧,你要尝试手动把所有的代码都敲一边.别嫌麻烦,因为都是从麻烦到简单的. 实例1: 题目:有1.2.3.4个数字,能组成多少个相互不同且无重复的三位数?都是多少? #!/usr/bin/env  python# --*--coding:utf-8 --*--'''可填在百位.十位.个位的数字都是1.2.3.4.组成所有的排列后再去 掉不满足条件的排列.'''for i in range(1,5):    for j in rang…

[程序1] 题目:有1.2.3.4个数字,能组成多少个互不相同且无重复数字的三位数?都是多少? 1.程序分析:可填在百位.十位.个位的数字都是1.2.3.4.组成所有的排列后再去  掉不满足条件的排列. 2.程序源代码: for i in range(1,5): for j in range(1,5): for k in range(1,5): if( i != k ) and (i != j) and (j != k): print i,j,k [程序2] 题目:企业发放的奖金根据利润提成.利…

https://mlnote.wordpress.com/2015/12/16/python%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0%E5%AE%9E%E8%B7%B5%E4%B8%8Ekaggle%E5%AE%9E%E6%88%98-machine-learning-for-kaggle-competition-in-python/ Author: Miao Fan (范淼), Ph.D. candidate on Computer Science. Affil…

笨办法学python. 1 Ec6字符串和文本... 1 ec7. 1 ec8. 1 Ec9. 1 Ec10 转义字符... 1 Ec11提问... 1 raw_input和input的区别... 1 Ec12提示别人... 1 ec13 参数,解包,变量... 1 ec14提示和传递... 1 Ec15读取文件... 1 Ec16读写文件... 1 ec17更多文件操作... 1 ec18命名,变量,代码,函数... 1 ec19函数和变量... 1 ec20函数和文件... 1 ec21函数…

So you want to write a desktop app in Python Thomas Kluyver 2014-06-16 23:55 51 Comments Source This is an overview of the best tools and the best resources for building desktop applications in Python. First things first. You can build great desktop…

100个Python练手小程序,学习python的很好的资料,覆盖了python中的每一部分,可以边学习边练习,更容易掌握python. [程序1] 题目:有1.2.3.4个数字,能组成多少个互不相同且无重复数字的三位数?都是多少? 1.程序分析:可填在百位.十位.个位的数字都是1.2.3.4.组成所有的排列后再去  掉不满足条件的排列. 2.程序源代码: for i in range(1,5): for j in range(1,5): for k in range(1,5): if( i !…