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Database Introduction concept A Database for storing data, which organizes, stores and manages data according to a certain data structure. classification Relational databases: mysql, sql server, oracle, DB2, etc. Non-relational databases: redis, etc. How python operates on databases pymysql: pure Python development, supporting python2 and ...

catalogue introduce Why use a separate reasoning container? Dependency Dockerfile Building and running containers generalization Download project file - 4.8 MB introduce Container technologies such as Docker significantly simplify the dependency management and portability of software. In this series of articles, we explore Docker Use ...

Built in function Some functions have been used before. Some people will ask why I can use them directly without importing this function? Because these functions are defined in a module called builtins, which is automatically imported when the Python environment is started by default, you can use these functions directly. We can output in ...

Series index: Chapter 1 Python Basics (1) Python Libraries - numpy, matplotlib Here is an example to understand the use of two important Python libraries. import numpy as np import matplotlib.pyplot as plt x = np.arange(0, 6, 0.1) y1 = np.sin(x) y2 = np.cos(x) plt.plot(x, y1, label="sin") plt.plot(x, y2, linestyle="--", label ...

In this article, we will learn how to use the * args parameter to define a variable function. Tuple unpacking The following example unpacks a tuple into two variables: x, y = 10, 20 Element 10 is given variable x and element 20 is given variable y. In fact, the parameters of the function are similar: def add(x, y): return x + y add ...

template matching Template matching is often used in image processing. This algorithm is mainly used to find the same area in the image as the template image. In addition, it is also used for image positioning. The specified position is found through template matching, and then subsequent processing is carried out. The principle of templa ...

catalogue 1, Converter and estimator 2, Classification algorithm K-nearest neighbor algorithm Case code: Model selection and tuning Case code: Naive Bayesian algorithm: Summary of naive Bayesian algorithm Case code: Decision tree summary: Case code: Use random forest to achieve: Random forest summary summary Code set of this ca ...

preface This article mainly introduces the related contents of dictionary, tuple, boolean type and read-write file. 1, Dictionary Dictionary (also known as dict) is a data storage method similar to list. But unlike lists, which can only get data with numbers, dictionaries can get data with anything. You can think of a dictionary as a ...

preface: Interface automation refers to the automation at the interface level of analog program. Because the interface is not easy to change and the maintenance cost is less, it is deeply loved by major companies. Interface automation includes two parts: functional interface automation test and concurrent interface automation test. This articl ...

The original text was posted on the TesterHome forum by xinxi, Original linkbackgroundDuring the Spring Festival holiday, I chased a TV series "perfect partner", starring the goddess "Gao Yuanyuan". There are about 45 episodes. I feel that the overall plot is OK, and the acting skills and appearance of the goddess are still ...