what is python? What can python do?

What kind of language is Python?

Python is a computer programming language. You may have heard of many popular programming languages, such as the very difficult to learn C language, the very popular Java language, the Basic language suitable for beginners, the Java language suitable for web programming, etc. Python is one of them.

First of all, let’s popularize the basic knowledge of programming languages. The purpose of developing programs in any programming language is to let the computer do things, such as downloading an MP3, writing a document, etc. The CPU that does the computer work only understands machine instructions. Therefore, although different programming languages ​​are very different, in the end they all It has to be "translated" into machine instructions that the CPU can execute. Different programming languages ​​have great differences in the amount of code written to do the same job.

For example, to complete the same task, you need to write 1,000 lines of code in C language, only 100 lines of code in Java, and Python may only need 20 lines.

So Python is a fairly high-level language.

Is it difficult to learn Python?

Is it true that the lower-level programs are more difficult to learn, while the more advanced programs are easier?

On the surface, yes.

However, in very high abstract calculations, advanced Python programming is also very difficult to learn, so high-level programming languages ​​do not mean simplicity.

However, the Python language is very simple and easy to use for beginners and for completing common tasks.

What can you do with Python?

can do daily tasks, such as automatically backing up your MP3;

can do websites, many famous websites like Zhihu and YouTube are written in Python;

Can be used as the backend of online games. The backends of many online games are developed in Python.

In short, you can do many, many things!

Of course there are things that Python cannot do.

For example, writing an operating system can only be written in C language;

Writing mobile applications can only be written in Objective-C ( For iPhone) and Java (for Android);

Write 3D games, preferably in C or C++.

Many large websites are developed using Python, such as YouTube, Instagram, and domestic Douban.

Many large companies, including Google, Yahoo, etc., and even NASA (National Aeronautics and Space Administration) use Python extensively.

If I am a novice, what conditions do I meet to learn Python?

――I know how to use a computer, but I have never written a program;

――I still remember the equations and a little bit of algebra I learned in junior high school mathematics; Programming novice becomes a professional software architect;

How can I gain a place in the python world?

In addition to the above three items, you must also have:

--The perseverance to study without interruption from 9:00 am to 10:30 pm for 4 months

- ―The determination to not be arrogant, not arrogant, not to shrink back, and not to admit defeat

If I were a novice, what should I prepare to learn Python?

The indispensable tools for learning Python are definitely tools, one is the encoder, and the other is the interpreter:

The encoder is Python. Currently, Python has two versions, one is version 2.x and the other is version 3.x. These two versions are incompatible because Python is now evolving towards version 3.x. In the process of evolution, a large number of The code for version 2.x needs to be modified before it can run. Therefore, many third-party libraries are currently not available for use on 3.x.

IDE tools. IDE integrated development environment (IDE for short) software is an application used in a program development environment, generally including code editors, compilers, debuggers and graphical user interface tools.

Commonly used tools are:

Pycharm: PyCharm is a Python IDE with a set of tools that can help users improve their efficiency when developing in the Python language, such as debugging, syntax enhancement Liang, Project management, code jump, smart prompts, auto-completion, unit testing, version control.

IDLE: Idle is a fairly basic IDE written in pure Python using Tkinter.

Ipython: ipython is an interactive shell for python, which is much easier to use than the default python shell.

What can you do after learning Python?

Operation and maintenance, web development, application development, big data, data mining, scientific computing, machine learning, artificial intelligence, natural language processing... You can also write very, very long...

Zhiyou Python, you deserve it!

Zhiyou python major is divided into two courses:

Python development: focusing on testing and operation and maintenance. The courses cover network programming, database operations, web crawlers, network monitoring, automated testing, and automation Operation and maintenance and other Python's most mainstream technologies. Example teaching from shallow to deep enables every student to become an excellent 2881064151Python engineer.

Python+big data: that is, Python enterprise-level development and big data operation and maintenance. As a language that is seamlessly integrated with big data operation and maintenance, Python+big data is the real big data. After studying this course, you can not only use Python to do enterprise-level development, but also do "big data operation and maintenance" that is higher than "big data development" and become a scarce big data operation and maintenance engineer in the market.