Programmer Group

print function Print (variable name) Print (variable) print("hello world") # hello world myString = "hi"; print(myString); # hi Single-Line Comments Single line notes begin with # # Here are the notes print("hi"); # Here are the notes Continuation character A continuation character is required because a line is too long If ...

In python, the use of multiple processes can bypass the limitation of GIL, so as to make full use of multi-core CPU to speed up tasks. However, if the process is not handled properly, it is easy to cause Zombie process or Orphan process , resulting in a waste of system resources. This paper analyzes the writing methods of these two processes t ...

In the previous article [software testing], 0 basic pure Xiaobai can also write python. Nanny level tutorial (III) shares the basic knowledge of Python. We will continue to share other contents this time. catalogue 1, List 2, List element NEW 3, List element modification 4, Query list elements 5, Other actions for the list 6, List sortin ...

In order to play the star water cup, I studied it with my teammates in fishing raids, mainly the knowledge of multithreading, multi process and decorators. I know a little about it Multithreading My understanding is to open a new thread to execute the functions I assigned to it _ ...

Introduction: continuous learning, continuous evolution, get logging new skillsIn general, we often use the logging module to record logs. Before using it, we need to configure the template and set the Handler and Formatter to preprocess, such as log output location, output format, log blocking and backup. When using logs in different projects, ...

Function (I) Function parameters do not need to declare types, nor do they need to specify the return value type of the functionFunction does not accept arguments, but also keep a pair ()After the brackets: Basic syntax of function definition and call Example 1: Fibonacci sequence def fib(n): a, b = 1, 1 while a < n: pri ...

1. Difference between = = and is ==Operator compares values between objects for equality.The is operator compares whether the identities of objects are equal, that is, whether they are the same object and point to the same memory address. In Python, the identity of each object can be obtained through the function id(object). Therefore, the is ...

Today we demonstrate how to use Keras, Redis, Flask, and Apache for in-depth learning in a production environment Over the years, Dega has also sorted out a lot of learning materials about artificial intelligence (including learning roadmap, two deep learning framework videos, image recognition, OpenCV, computer vision, deep learning and neura ...

1. What is an exception When an error is detected, the interpreter cannot continue to execute. Instead, some error prompts appear, which is the so-called "exception". 2. Exception presentation # operator # print(10/0) # File exception f = open('python.txt', 'r') content = f.readlines() print(content) 3. Exception capture Basic ...

preface Over the past few years, I have been struggling in the it industry. Along the way, many have summarized some high-frequency interviews in the python industry. I see most of the new blood in the industry, and I still have all kinds of difficult questions for the answers to all kinds of interview questions or collection Therefore, I dev ...