Box2D is a 2D physics engine for games.
For help with Box2D, please visit http://www.box2d.org. There is a forum there where you may post your questions.
Box2D_v2.1.2
Box2D is a 2D physics engine for games.
For help with Box2D, please visit http://www.box2d.org. There is a forum there where you may post your questions.
笨方法学Python号称最经典的python入门书籍现在出python3版本的了，你还不快来学？
英文高清带书签版本
You Will Learn Python 3!
Zed Shaw has perfected the world’s best system for learning Python 3. Follow it and you will succeed—just like the millions of beginners Zed has taught to date! You bring the discipline, commitment, and persistence; the author supplies everything else.
In Learn Python 3 the Hard Way, you’ll learn Python by working through 52 brilliantly crafted exercises. Read them. Type their code precisely. (No copying and pasting!) Fix your mistakes. Watch the programs run. As you do, you’ll learn how a computer works; what good programs look like; and how to read, write, and think about code. Zed then teaches you even more in 5+ hours of video where he shows you how to break, fix, and debug your code—live, as he’s doing the exercises.
Install a complete Python environment
Organize and write code
Fix and break code
Basic mathematics
Variables
Strings and text
Interact with users
Work with files
Looping and logic
Data structures using lists and dictionaries
Program design
Object-oriented programming
Inheritance and composition
Modules, classes, and objects
Python packaging
Automated testing
Basic game development
Basic web development
It’ll be hard at first. But soon, you’ll just get it—and that will feel great! This course will reward you for every minute you put into it. Soon, you’ll know one of the world’s most powerful, popular programming languages. You’ll be a Python programmer.
This Book Is Perfect For
Total beginners with zero programming experience
Junior developers who know one or two languages
Returning professionals who haven’t written code in years
Seasoned professionals looking for a fast, simple, crash course in Python 3
用python进行数据分析 第二版
英文高清带书签版本
Get complete instructions for manipulating, processing, cleaning, and crunching datasets in Python. Updated for Python 3.6, the second edition of this hands-on guide is packed with practical case studies that show you how to solve a broad set of data analysis problems effectively. You’ll learn the latest versions of pandas, NumPy, IPython, and Jupyter in the process.
Written by Wes McKinney, the creator of the Python pandas project, this book is a practical, modern introduction to data science tools in Python. It’s ideal for analysts new to Python and for Python programmers new to data science and scientific computing. Data files and related material are available on GitHub.
Use the IPython shell and Jupyter notebook for exploratory computing
Learn basic and advanced features in NumPy (Numerical Python)
Get started with data analysis tools in the pandas library
Use flexible tools to load, clean, transform, merge, and reshape data
Create informative visualizations with matplotlib
Apply the pandas groupby facility to slice, dice, and summarize datasets
Analyze and manipulate regular and irregular time series data
Learn how to solve real-world data analysis problems with thorough, detailed examples
