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Chapter 1: example demonstration ① Pyecarts version 1.9.1 installation and data preparation First, you need to install the pyecarts library. Just PIP install pyecarts directly. The new version does not need to be installed separately. If it is version 0.5, it needs to be installed separately. At present, the latest version 1.9.1 is demons ...

Content of this article: This section mainly introduces how to read, write and parse the configuration file yaml.                  Basic introduction: In daily development, we can always encounter some scenarios that may need to be changed. At this time, we need a configuration file to change th ...

0 project planning 0.1 project overview In the game alien invasion, players control a spaceship that appears at the bottom and center of the screen. Players can use the up, down or left keys to move the ship, and can also use the space bar to shoot. At the beginning of the game, an alien Legion appeared at the top of the screen. While moving ...

1, Foreword    this article mainly explains the basic operation of files in Python. It is the basic explanation of file operation. It will be used in subsequent automation tests. Below is the portal of a series of articles. Interested partners can also go to check it. Let's have a look at it together~ Series of articles: ...

Introduction This is RabbitMQ in Depth's learning notes. AMQ The AMQ(Advanced Message Queuing) model defines three abstract components: Exchange - Message broker component that routes messages to queuesQueue - Data structure for storing messagesBinding - Rule that tells Exchange which Queue messages should be stored In addition to bein ...

Basic syntax and variables print('hello world!') 1, Basic grammar 1. Common shortcut keys ctr + / - add or remove comments ctr + s - save ctr + c - copy ctr + v - paste ctr + x - shear ctr + a - select all ctr + z - undo ctr + shift + z - reverse undo 2. Notes Comments are the parts of the code that will not be compiled and executed (not ...

summary Python Dictionary (dict) is an unordered and variable sequence. Its elements are stored in the form of "key value". In contrast, list s and tuple s are ordered sequences, and their elements are stored next to each other at the bottom. The dictionary type is the only mapping type in Python. "Mapping" is a term ...

When understanding basic data types, we need to know what basic data types are? Number int, Boolean bool, string str, list, tuple, dictionary dict, etc., including their basic usage and common methods, which will be listed here for reference. Then we need to know some operators, because these basic data types are often used for some operations ...

The crawler function is realized bit by bit. If we want to crawl qq music, we must first crawl one of the songs. We open the official website of qq music, randomly find a song, enter the playback page, and then press F12 to enter the detection interface. If no data appears, refresh the page. Then we find the file with the size of a song her ...

catalogue Array creation 1. Create ndarray based on existing data (a) It is created through the array() function. (b) It is created through the asarray() function (c) It is created through the fromfunction() function 2. Fill according to ones and zeros (a) Zero array (b) 1 array (c) Empty array (d) Unit array (e) Diagonal array (f) ...