Little Turtle's zero-based introduction to learning Python video tutorial

Course introduction: This series of tutorials is aimed at students with zero basic knowledge. It is a Python3 video tutorial that explains the profound things in a simple and easy-to-understand manner.
The first half mainly explains the grammatical features of Python3, and the second half focuses on the application of Python3 in crawlers, Tkinter, Pygame game development and other examples. The entire series has a total of 16 chapters. The first 13 chapters introduce Python from a small game and gradually introduce Python's syntax and language features. The last three chapters are case demonstrations, which are a summary and improvement of the previous content.

Play address: http://www.php.cn/course/504.html

Lecturer’s characteristics: The teacher’s lectures are simple and in-depth, clear in structure, analyzed layer by layer, interlocking, rigorous in argumentation, and rigorous in structure. He uses the logical power of thinking to attract students’ attention, and uses reason to control the classroom teaching process. By listening to teachers' lectures, students can not only learn knowledge, but also receive thinking training. Although some teachers are unsmiling in class, their hearts are filled with a thorough understanding of knowledge and a persistent pursuit of the development of people's intellectual abilities.

# Difficulty analysis: page reading; link extraction; url filtering; html parsing.

Courseware download: http://www.php.cn/xiazai/code/2077

Python is a high-level scripting language that combines interpretation, compilation, interactive and object-oriented scripting.

Python is designed to be highly readable. Compared with other languages, it often uses English keywords and some punctuation marks in other languages. It has a more distinctive grammatical structure than other languages.

Python is an interpreted language: This means that there is no compilation link in the development process. Similar to PHP and Perl languages.

Python is an interactive language: This means that you can write your program directly and interactively at a Python prompt.

Python is an object-oriented language: This means that Python supports object-oriented style or programming techniques in which code is encapsulated in objects.

Python is a Beginner's Language: Python is a great language for beginning programmers, supporting a wide range of application development, from simple word processing to WWW browsers to games.

Python features:

Easy to learn: Python has relatively few keywords, a simple structure, and a well-defined syntax, making it easier to learn. .

Easy to read: Python code is more clearly defined.

Easy to maintain: The success of Python is that its source code is quite easy to maintain.

An extensive standard library: One of Python's biggest advantages is its rich library, which is cross-platform and compatible with UNIX, Windows and Macintosh.

Interactive mode: Interactive mode support, you can enter the language to execute code and get the results from the terminal, interactive testing and debugging code snippets.

Portable: Based on its open source nature, Python has been ported (that is, made to work) to many platforms.

Extensible: If you need a critical piece of code that runs quickly, or want to write some algorithms that you don’t want to open, you can use C or C++ to complete that part of the program, and then use it from your Python program transfer.

Database: Python provides interfaces to all major commercial databases.

GUI Programming: Python supports GUIs that can be created and ported to many system calls.

Embeddable: You can embed Python into a C/C++ program, allowing users of your program to gain "scriptability" capabilities.

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