since 20 There was TIOBE Since the index ,Java and C No longer in the top two for the first time .C It's still number one , But now it's Python Occupy the second place .

Some people say ,Python The recent popularity is due to data mining 、 The vigorous development of artificial intelligence and numerical computation . But I have a different view , I Believe Python Its popularity is related to a variety of general needs .

in the past , Most programming is done by programmers , But now programming skills are needed everywhere to get the job done , And there is a lack of good programmers . therefore , We need some simple programming problems that non programmers can handle , Something easy to learn , Rapid development and simple and smooth deployment ,Python All of these needs are met .

not long ago , I've got a flat tire and sent to the factory for repair , The repairman and I were chatting , I said when I worked in the software industry , He smiled. , He began to talk about his current hobbies with enthusiasm ： use Python Programming . From that moment on , I know it Python It's going to be everywhere .

—— Paul Jansen CEO TIOBE

The language with a significant change in ranking ：

GO： from 14  position Rise to 13  position

Swift： from 16 position Rise to 14  position

Delphi/Objective Pascal： from 22  position Rise to 18  position

Transact-SQL： from 24  position   Rise to 20  position

PowerShell ： from  41 position   Rise to 31 position

Haskell： from  45  position   Rise to 41 position

Ruby： from 13  position drop to 15  position

MATLAB： from 15  position drop to 17 position

ABAP： from 29  position drop to 33 position

2002 - 2020 Hot language trends

This month, Top 20 Language ranking

Top 21 - Top 50, Which one do you know ？

Programming language history ranking changes （12 Average ranking per month ）

sales 750,000  The classic book

《Python Programming ： From introduction to practice （ The first 2 edition ）》

Eric · Mathers （Eric Matthes）|  Writing

Yuan Guozhong  | translate

This book is for all levels Python For the reader Python Introductory book .

The book is divided into two parts ：

The first part is introduction Python The basic concepts that programming must understand , Including powerful Python Libraries and tools , And lists 、 Dictionaries 、if sentence 、 class 、 Files and exceptions 、 Code test and so on ;

The second part puts theory into practice , Explain how to develop three projects , Including simple 2D game 、 Use data to generate interactive information graphs and create and customize simple Web application , And help readers solve common programming problems and puzzles .

The first 2 A comprehensive revision has been made , To simplify the Python The installation process , Added f character string 、get() Methods, etc , And used in the project Plotly Library and new versions of Django and Bootstrap, wait .

harvard 、 Massachusetts institute of technology, 、 Stanford and other famous schools C Language materials

K.N.King | Writing  

Lu Xiufeng , Huang Qian | translate

today , C Language is still one of the common languages in the computer field , But today's C The language is quite different from the original . One of the main purposes of this book is to pass a “ Modern methods ” To introduce C Language , The book emphasizes standards C, Emphasize software engineering , No longer stressed “ Manual optimization ”. In this edition, there is a close combination of C99 standard , And with C89 Standard for comparison , added C99 The latest feature in . This book is divided into C The basic characteristics of language 、 C The advanced nature of language 、 C Language standard library and references 4 Parts of . There is a... At the end of each chapter “ Q & A ” This section gives a series of questions and answers related to the content of this chapter , In addition, it also includes some exercises .

This book is for the undergraduate stage C A textbook for language courses , At the same time, it is also very suitable for other courses .

From the actual data analysis , Comprehensive mastery R Programming

Robert I. Kabacoff |  Writing

Wang Xiaoning , Liu Chuixin , Huang Junwen | translate

This book focuses on practicality , It's a comprehensive and detailed book R guide , A high-level summary of the software and its powerful functions , Shows examples of statistics used , And for clutter that is difficult to handle with traditional methods 、 Incomplete and non normal data give an elegant treatment .

The author does not just discuss statistical analysis , The graphic function of exploring and displaying data is also described . The new edition has a lot of updates and corrections , Added near 200 Page content , Introduce data mining 、 Predictive analysis and advanced programming .

This book is suitable for data analysts and R User learning reference .

C++ Classic code optimization

Kurt Guntheroth | Writing

Yang Wenxuan | translate

The author selected him in the near 30 The most frequently used technology and the technology that can bring maximum performance improvement in my programming career , It aims to make readers improve C++ Programming ability at the same time , Think about the beauty of software optimization .

The main contents of the book are ： The meaning and general principles of code optimization , Background knowledge of computer hardware related to optimization , Be able to analyze methods and tools , Optimize the use of strings , Algorithm 、 Search and sort and so on .

Xu Shi Wei  |  Writing

This book introduces Go Language is the main feature , The examples try to use the common practices of the author's development team , It's about memory management （ Heap and stack ）、 Error handling 、OOP、 Concurrent programming and other key topics .

This book is for all intended readers Go Language developers , It mainly includes the current use of C、C++、Java、C# Developers of , Even some Python、PHP Developers can also become Go The programmer .