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Python founder:The founder of Python is Guido van Rossum (Guido van Rossum). During the Christmas of 1989, Guido van Rossum to spend time in Amsterdam, determined to develop a new script interpreter, as an inheritance of the ABC language.The latest Tiobe leaderboards, Python catch up with PHP occupy the four, Python advocating beautiful, clear, simple, is a good and widely used language.Python's application areas:1. Cloud computing2. Web Development3.

incredible thing", it is better to think of her childlike character.PythonThe big lady in the purdah, raised by the Guido father. She was born in Amsterdam, Holland, but she moved to the United States as a child, and her father used English at home, so he didn't speak Dutch.She has an easygoing personality. The best known is that she listens to C + + announcing "Want to go on a trip to change the image." 200x years back Oh "After the trip (the result

point. It was very stable, avoided copyright disputes, and hooked up to the open source movement. In that era, commercial copyright has been a hot event, the industry's first major software sector lawsuit and the Berkeley BSD Unix copyright case played weeping, the outcome of the case directly contributed to the BSD open source branch, the birth of Linux and shocked the world of free software movement.?? Python's original copyright attribution was CWI (the National Institute of Mathematics and

A Python introduction The founder of Python is Guido van Rossum (Guido van Rossum). 1989 Christmas period, Guido van Rossum (Chinese name: Uncle Turtle) in order to pass time in Amsterdam, determined to develop a new script interpreter, as an inheritance of the ABC language.(Uncle Tortoise: 2005 joined Google to 2012, 2013 joined Dropbox until now, still grasp the core direction of Python development, known as benevolent dictator).Current Python main

) { string[][] countries = {"states", "New York"}, {"Kingdom", "London"}, {"Netherland", "Amsterdam"}, {"Japan", "Tokyo"}, {"France", "Paris"}; Map countrycapitals = arrayutils.tomap (countries); System.out.println ("Capital of Japan" + countrycapitals.get ("Japan")); System.out.println ("Capital of France is" + countrycapitals.get ("France")); 5. parsing/reading XML filesXML file: 6, list files an

.)The release indicates that the source code is no longer available and that the use of some universities and research institutions is prohibited, andUnixthe operating system requires a considerable amount of money to be used. WasUnixAre usually professors of scientific institutions and universities,Unixsplitting out a lot of versions, and I'm not going to illustrate that. Then andLinuxWhat's the matter with it? 1987a paragraph of the year namedMinixoperating system release it was developed by a

Python IntroductionThe founder of Python is Guido van Rossum (Guido van Rossum). 1989 Christmas period, Guido van Rossum (Chinese name: Uncle Turtle) in order to pass time in Amsterdam, determined to develop a new script interpreter, as an inheritance of the ABC language.The July 2017 Tiobe leaderboard, Python has taken the fourth place, Python's elegance, clarity, and simplicity is an excellent and widely used language.Python application Areas

1, the Computer FoundationCPU: Equivalent to the human brain, used for computing. Memory: Store data, run fast, high cost, power loss data disappear.HDD: SSD (FAST), mechanical hard drive (with pointer). Storing data, requiring long-term data retention, important documentsOpen QQ Process: Click-hard disk-call data to memory-register-cpu-transmit data to the monitor.Operating system2. Python history(1) Birth: 1989 Christmas, Van Rossum in Amsterdam in

rather classic "skills." Through limited sales to create a sense of urgency, so that users can see how many people at the same time with the competition is through the number to create social identity to promote product sales. The first time in Airbnb inquiries and reservations, due to the number of reservations, local tight, the result of my booking failed. The next time I go to Amsterdam, I'd like to book this place, and I'll make a reservation an

In front of a big wave of cool Web sites, minimalist design can always brighten people's hearts, just like the moment of crossing a forest over a mountain to the Stars and the sea--the beauty turns out to be another form. Today we collected a group of real minimalist design, it is surprising that some minimalist web site, not satisfied with the monotony of several colors to smear, but the rich and colorful colors are mixed in, how the work, static to your discovery. 　　Company-london

1, Dragone Link Address: http://dragone.com/en 2, Celebrity couch Link Address: http://celebritycouch.lv/# 3, World Baking Day Link Address: http://worldbakingday.com/en/ 4. The Legendary Posters Link Address: http://worldbakingday.com/en/ 5, Ondo Link Address: http://ondo.tv/1st/ 6, Four in Paris Link Address: http://www.lovedays.org/ 7, Amsterdam Dance Event Link Ad

community is completely different, there are many similarities between the two groups of people. After all, all the users are people. All usability issues respond to the interaction and impact of human behavior with the site. When testing a different user base, you don't need to have a lot of testers (user) in each user base, the following number of testers is sufficient: 1, if the test two user groups, then each group needs 3-4 users, 2, if the test 3 or more user groups, then each class has

= sklearn.preprocessing.LabelEncoder() le.fit([1, 2, 2, 6]) le.transform([1, 1, 2, 6]) #array([0, 0, 1, 2]) #非数值型转化为数值型le.fit(["paris", "paris", "tokyo", "amsterdam"])le.transform(["tokyo", "tokyo", "paris"]) #array([2, 2, 1]) 8. When the feature contains outliers 1 sklearn.preprocessing.robust_scale 9. Create a polynomial featureThis actually involves feature engineering, polynomial features/cross-features.

ways to navigate the brain hole, slide, slide, suspend, stick, eject, and so on, compared to the traditional navigation bar design, these very different navigation bar will allow users to enjoy a unique browsing experience. Impossible Bureau Qards 　　Cards and magnetic stickers The waterfall flow design of previous years has not been eliminated completely, with the material design and the Windows modern Ui popular, the design of card-style and Windows Phone-style dyna

First, Python introductionThe founder of Python is Guido van Rossum (Guido van Rossum). During the Christmas of 1989, Guido van Rossum to spend time in Amsterdam, determined to develop a new script interpreter, as an inheritance of the ABC language.The latest Tiobe leaderboard, Python occupies the four, Python advocates beautiful, clear, simple, is a good and widely used language.Ii. Advantages and disadvantages of PythonSee the pros first Py

static void Main (string[] args) { string[][] countries = {{"United States", "New York "}, {" United Kingdom "," London "}, {" Netherland "," Amsterdam "}, {" Japan "," Tokyo "}, {" France "," Paris "}}; map countrycapitals = arrayutils.tomap (countries); System.out.println ("Capital of the Japan is" + countrycapitals.get ("Japan")); System.out.println ("Capital of France are" + countrycapitals.get ("France")); }

support built in perfect AJAX supportBindows Development environment: support for enterprise-scale project development cross-browser, cross-OS platform support not constrained by server structure good development interface with new, existing resource interoperability 1.2 Backbase (founded in 2003) Backbase is a complete browser-side framework that provides rich browser-manipulation capabilities as well as the right. NET and the Java platform integration.Commercial products from Backbase B.V

widget support including menus, forms, grids, sliders, quanta, and even more • The leading toolkit for developing Zero-footprint SOA client applications • Xml,soap and XML-RPC support for this machine • Single-User to Enterprise-class support • Built-in support for Ajax Bindows Development Environment: • Support for enterprise-scale engineering development • Cross-browser, cross-platform support • Server Independent structure • Interoperability with new and existing resources • Consis

system that provides wide range of widget support including menus, forms, grids, sliders, quanta, and even more • The leading toolkit for developing Zero-footprint SOA client applications • Xml,soap and XML-RPC support for this machine • Single-User to Enterprise-class support • Built-in support for Ajax Bindows Development Environment: • Support for enterprise-scale engineering development • Cross-browser, cross-platform support • Server Independent structure • Interoperability with new and ex

feature to 0/1 given the threshold value Binarizer = Sklearn.preprocessing.Binarizer (threshold=1.1) binarizer.transform (X) 5. Label binary (label binarization) LB = Sklearn.preprocessing.LabelBinarizer () 6. Category feature Encoding Sometimes the features are of type, and some of the algorithms must be numeric, and they need to be encoded. ENC = preprocessing. Onehotencoder () enc.fit ([[0, 0, 3], [1, 1, 0], [0, 2, 1] , [1, 0, 2]]) enc.transform ([[0, 1, 3]