[Python] Introduction to Multithreading and Synchronization

Thread is the smallest unit that the operating system can perform operation scheduling; the thread itself does not own system resources, but only has a few resources that are necessary for operation, but it can share the process owned by other threads belonging to the same process. All resources. thread implementation There are two ways o ...

Posted by VLE79E on Tue, 04 Oct 2022 14:22:42 +0300

Quickly experience Spring Boot, learn how to use, run and package | SpringBoot 2.7.2 Learning Series

🚀 Quality resource sharing 🚀 Learning route guidance (click to unlock)Knowledge orientationCrowd positioning🧡 Python actual WeChat ordering applet 🧡Progressive classThis course is a perfect combination of python flask+WeChat applet, from project construction to Tencent cloud deployment and online, to build a full stack meal ordering syst ...

Posted by dimitar on Mon, 26 Sep 2022 21:24:21 +0300

2. Summary of test interview questions

Summary of test interview questions function test 1. Similarities and differences between app and web testing *** Same point: A.The test cases are the same. B.The same test method: will be checked according to the renderings UI,Test functionality against requirements documentation. C.Compatibility testing is required D.All need to test the s ...

Posted by Capnstank on Fri, 16 Sep 2022 21:56:24 +0300

Pytorch Essay (Introduction to the Speed ​​of Light)

This article is only for novices like me, please detour! When I was flipping through my notes, I found this blog post: Aha~ Take a day to quickly get started with Pytorch (probably the most complete process in the entire network from 0 to deployment) But I found that there is a part about the gradient that is not clear, because I disagree ...

Posted by paulspoon on Mon, 05 Sep 2022 20:59:18 +0300

In python -- try except ion exception exception capture, regularization and replacement of exception values

1. Exception handling process Exception Name:describeBaseExceptionBase class for all exceptionsSystemExitInterpreter request exitKeyboardInterruptUser interrupts execution (usually enter ^ C)ExceptionBase class for general errorStopIterationThe iterator has no more valuesGeneratorExitAn exception occurs in the generator to notify the exitStand ...

Posted by mduran on Fri, 26 Aug 2022 02:54:37 +0300

python loop keywords and lists

1, Nested loop comparison (code runtime management) In python, if we want to pursue the simplicity of the code, we need to understand that more code will take more time to run, which will reduce the work efficiency. Next, we observe the effect through python's time library import time start=time.time() for x in range(0, 35): # y stan ...

Posted by paulsiew2 on Fri, 26 Aug 2022 00:29:49 +0300

matplotlib draws a row and three columns graph (usually used as a document picture)

Use matplotlib to draw a parallel line graph that often appears in the literature. Attached code, and will explain some difficult points in drawing. catalogue design sketch Drawing code: 1 data tuple 2. Subplot position: subplot setting 3. Line color and legend 4. tight_layout: fill in blanks and modify spacing design sketch The ...

Posted by dearsina on Wed, 24 Aug 2022 10:39:26 +0300

Regular + Python: a lightweight interface documentation tool

ApiFormatMd lightweight Java interface document generation tool characteristic Execute Java code completely based on native code without reference to additional dependenciesGenerate MarkDown format documents. You can use ShowDoc to generate online documents Configuration item main.py Author = 'River fire is like a firefly' (corre ...

Posted by maseeha on Wed, 24 Aug 2022 07:29:09 +0300

python --opencv image processing Canny operator edge detection (Roberts operator, Prewitt operator, Sobel operator, Laplacian operator, Scharr operator, LOG operator)

edge detection Edge detection is a common method of image segmentation based on gray level mutation. Its essence is to extract the features of discontinuous parts in the image. At present, the common edge detection operators include difference operator, Roberts operator, Sobel operator, Prewitt operator, Log operator and Canny operator. Amon ...

Posted by robot_nader on Wed, 24 Aug 2022 04:20:26 +0300

seaborn notes: plotting the distribution of points

1 Histogram 1.0 Dataset import seaborn as sns penguins = sns.load_dataset("penguins") penguins 1.1 Univariate Histogram 1.1.1 displot sns.displot(penguins, x="flipper_length_mm") 1.1.2  histplot sns.histplot(penguins, x="flipper_length_mm") 1.1.3 binwidth Set Histogram Interval Width sns.displot(penguins, x="flipper_length_mm", ...

Posted by cyprus on Wed, 17 Aug 2022 00:19:44 +0300