[in depth learning] 60 questions PyTorch simple introduction guide to be a trendsetter of Technology

1. Get to know PyTorch 1.1 tensor 1. Import pytorch package import torch 2. Create an empty 5x3 tensor x = torch.empty(5, 3) print(x) 3. Create a randomly initialized 5x3 tensor x = torch.rand(5, 3) print(x) 4. Create a 5x3 0 tensor of type long x = torch.zeros(5, 3, dtype=torch.long) print(x) 5. Create tensors directly from the a ...

Posted by jbbadaz on Wed, 22 Sep 2021 22:07:11 -0700

Opencv basics cropping images using OpenCV

First, why do we need crops? Clipping is to remove all unnecessary objects or areas from the image or to highlight a special feature of the image. Unlike Numpy, which uses slicing to achieve clipping, OpenCV does not have a specific function to perform clipping. Each image read is stored in a 2D array (for each color channel). Just specify the ...

Posted by rebelo on Wed, 22 Sep 2021 17:23:28 -0700

Computer level 2 Python pre exam sprint!! Ten thousand word notes, I wish you pass the customs!

Consolidate some simple codes before the exam. I wish everyone can pass, excellent!! catalogue   1. Simple output 2. for loop 3,eval()   Dequote 4. abs() absolute value   divmod() Division   pow() Power max min Min 5. Bit operation    & |  ^  ~    It should be a multiple-choice que ...

Posted by xbase on Wed, 22 Sep 2021 11:01:19 -0700

Python basic learning DAY2 (9.22)

1. Chain assignment: used to assign the same object to multiple variables. a=b=123 print(a) #123 print(b) #123 2. Series unpacking assignment: the series data is assigned to variables corresponding to the same number, and the number must be consistent. a,b,c=1,2,3 print(a) #1 print(b) #2 print(c) #3 a,b,c=1,2,3 a,b=b,a print(a) #2 print ...

Posted by ozzy on Wed, 22 Sep 2021 08:57:50 -0700

Not technically, because the Pytest framework

summary pytest is a very mature and full-featured Python testing framework. Its main features are as follows: Simple and flexible, easy to use, rich documents; Support parameterization, which can fine-grained control the test cases to be tested; It can support simple unit testing and complex function testing, and can also be used for selen ...

Posted by bough on Wed, 22 Sep 2021 07:16:59 -0700

python + uiautomator2 Chinese usage rules

python + uiautomator2 Chinese usage rules 1, Installation 1. Install uiautomator2 #Since uiautomator2 is still under development, you must add '– pre' to install the development version. pip install --pre uiautomator2 #You can also install from source git clone https://github.com/openatx/uiautomator2 pip install -e uiautomator2 ...

Posted by SonnyKo on Wed, 22 Sep 2021 01:32:32 -0700

Pygame actual combat: the work of God worship inherited for 40 years - bomber college game! [source code attached]

Introduction In this impetuous age: Xiaobian's glory of the king every time he lands, and stimulating battlefield Z every time he lands! Look at the chat interface inside, all kinds of generation calls and all kinds of search cp. Xiaobian feels that we have lost our original intention to play games. Next, xiaotai will lead you back to your c ...

Posted by Shuriken1 on Tue, 21 Sep 2021 23:36:44 -0700

Day 10 | day 28 learn PyQt5, box layout

In most programming languages, the menu bar and toolbar will provide the corresponding layout, and the layout manager is required for the of the work area. Of course, in PyQt5, most components can be positioned and placed with x-axis and y-axis coordinates, but it takes time and effort. There will also be problems that the size and position of ...

Posted by xisle on Tue, 21 Sep 2021 21:23:08 -0700

Detailed explanation of ansible automatic operation and maintenance tool for batch management of tens of millions of servers in large enterprises[ ⭐ Suggested collection ⭐]

Detailed explanation of ansible automatic operation and maintenance tools About the author Author introduction 🍊 Blog home page: Author URI 🍊 Introduction: high quality creators in the field of cloud computing 🏆, The it story of the school's official account Creator 🎓, At school, he participated in many computer related provin ...

Posted by bennyboywonder on Tue, 21 Sep 2021 18:02:55 -0700

The way of learning python 21-30 questions

**We have updated 1-20 questions for you. We have been learning python for half a year. We first understand these basic questions, which is of great benefit to the improvement of your ability. Here we update 21-30 questions, and later we will update some basic knowledge of python. I hope you will pay more attention. 21. Questions: The robot mov ...

Posted by JayFM on Tue, 21 Sep 2021 17:45:51 -0700