本文实例讲述了python集合用法。分享给大家供大家参考。具体分析如下:
# sets are unordered collections of unique hashable elements # Python23 tested vegaseat 09mar2005 # Python v2.4 has sets built in import sets print "List the functions within module 'sets':" for funk in dir(sets): print funk # create an empty set set1 = set([]) # now load the set for k in range(10): set1.add(k) print "\nLoaded a set with 0 to 9:" print set1 set1.add(7) print "Tried to add another 7, but it was already there:" print set1 # make a list of fruits as you put them into a basket basket = ['apple', 'orange', 'apple', 'pear', 'orange', 'banana'] print "\nThe original list of fruits:" print basket # create a set from the list, removes the duplicates fruits = sets.Set(basket) print "\nThe set is unique, but the order has changed:" print fruits # let's get rid of some duplicate words str1 = "Senator Strom Thurmond dressed as as Tarzan" print "\nOriginal string:" print str1 print "A list of the words in the string:" wrdList1 = str1.split() print wrdList1 # now create a set of unique words strSet = sets.Set(wrdList1) print "The set of the words in the string:" print strSet print "Convert set back to string (order has changed!):" print " ".join(strSet) print # comparing two sets, bear with me ... colorSet1 = sets.Set(['red','green','blue','black','orange','white']) colorSet2 = sets.Set(['black','maroon','grey','blue']) print "colorSet1 =", colorSet1 print "colorSet2 =", colorSet2 # same as (colorSet1 - colorSet2) colorSet3 = colorSet1.difference(colorSet2) print "\nThese are the colors in colorSet1 that are not in colorSet2:" print colorSet3 # same as (colorSet1 | colorSet2) colorSet4 = colorSet1.union(colorSet2) print "\nThese are the colors appearing in both sets:" print colorSet4 # same as (colorSet1 ^ colorSet2) colorSet5 = colorSet1.symmetric_difference(colorSet2) print "\nThese are the colors in colorSet1 or in colorSet2, but not both:" print colorSet5 # same as (colorSet1 & colorSet2) colorSet6 = colorSet1.intersection(colorSet2) print "\nThese are the colors common to colorSet1 and colorSet2:" print colorSet6
希望本文所述对大家的Python程序设计有所帮助。

本篇文章给大家带来了关于Python的相关知识,其中主要介绍了关于Seaborn的相关问题,包括了数据可视化处理的散点图、折线图、条形图等等内容,下面一起来看一下,希望对大家有帮助。

本篇文章给大家带来了关于Python的相关知识,其中主要介绍了关于进程池与进程锁的相关问题,包括进程池的创建模块,进程池函数等等内容,下面一起来看一下,希望对大家有帮助。

本篇文章给大家带来了关于Python的相关知识,其中主要介绍了关于简历筛选的相关问题,包括了定义 ReadDoc 类用以读取 word 文件以及定义 search_word 函数用以筛选的相关内容,下面一起来看一下,希望对大家有帮助。

VS Code的确是一款非常热门、有强大用户基础的一款开发工具。本文给大家介绍一下10款高效、好用的插件,能够让原本单薄的VS Code如虎添翼,开发效率顿时提升到一个新的阶段。

本篇文章给大家带来了关于Python的相关知识,其中主要介绍了关于数据类型之字符串、数字的相关问题,下面一起来看一下,希望对大家有帮助。

本篇文章给大家带来了关于Python的相关知识,其中主要介绍了关于numpy模块的相关问题,Numpy是Numerical Python extensions的缩写,字面意思是Python数值计算扩展,下面一起来看一下,希望对大家有帮助。

pythn的中文意思是巨蟒、蟒蛇。1989年圣诞节期间,Guido van Rossum在家闲的没事干,为了跟朋友庆祝圣诞节,决定发明一种全新的脚本语言。他很喜欢一个肥皂剧叫Monty Python,所以便把这门语言叫做python。


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
