?♂? Personal homepage: @ aiperson’s personal homepage ?About the author: Python learner I hope everyone will support us and we will make progress together! If the article is helpful to you, Welcome to comment Like Collection Add follow + Table of Contents 1.Project background 2. Introduction to data sets 3.Technical Tools 4. Experimental process 4.1 […]
Tag: views
SQL logic and optimization (must know for interviews)
What we often need to operate in development is SQL statements. SQL statements greatly determine this function. In complex businesses, there are nothing more than complex SQL statements. Like MQ and Redis, they are actually auxiliary SQL functions. So how to parse and optimize SQL? , today I will use a simple example to help […]
VTK+QT implementation, displaying three two-dimensional three-dimensional views of the three-dimensional model
The renderings are as follows: This code uses QT and VTK libraries to display three three-dimensional views of the three-dimensional model on the interface. First, read the NIFTI image data through vtkNIFTIImageReader, and then create three rendering windows (coronal, sagittal, and axial views) to display images of the coronal, sagittal, and axial views respectively. Next, […]
Springboot integrates logs and views them locally
Table of Contents 1. Import dependencies 2.Write configuration 3.Use 4.Verification 5. Print error message 1. Import dependencies <!– logback, backward compatible with log4j, also supports SLF4J–> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> </dependency> 2. Write configuration Including configuring color fonts, saving location, etc. In the log storage path column, I set it to be stored in the log […]
Views, triggers and stored procedures
Python operates MySQL The origin of SQL: MySQL itself is a C/S architecture, with a server and a client. It comes with a client: mysql.exe The python language has become the client of MySQL (for a server, there can be many clients) Steps: 1. Connect to MySQL first host, port, username, password, charset, library, etc. […]
Python operates MySQL, SQL injection issues, views, triggers, transactions, stored procedures, built-in functions, process control, indexes
1. Python operates MySQL Import third-party module: pymysql Operation steps (text description): 1. Connect to MySQL first host, port, username, password, charset, library, autocommit, etc. 2. Write SQL statements in python 3. Start executing the SQL statement and get the result 4. Processing in python (further processing of data) Code implementation: # 1. Link mysql […]
Python crawls Ctrip travel website attraction reviews
Project Introduction Problem Solved All codes Crawl the attraction review data of Ctrip.com and use selenium to crawl the webpage text data of the edge browser. Ctrip’s review data is relatively easy to crawl. Unlike Dianping, which requires you to log in and verify, you only need to find the web link you want to […]
Redirection and application of views in django
Redirection and application of views in django 1. In Django, we can use view redirection to jump the page displayed on the client to a different URL. For example, if we now want to link to the home page of Fujian Normal University Union College (cuc NO1) on the existing page (index1.html), how to achieve […]
Get started quickly with VUE —vue project structure (api, assets, components, router, services, store, styles, views, App.vue, main.js)
vue project structure Structure display myapp/ ├── public/ # Public resource directory │ ├── index.html # Entry HTML file of the project │ └── favicon.ico # Website icon │ ├── src/ # Project source code directory │ ├── api/ # Define and manage the directory of modules or services that send requests to the backend […]
Django 05Django-DRF (ModelViewSet), routing components, custom functions
1. Django-DRF (ModelViewSet) 1.1 What is DRF? ModelViewSet is a viewset class provided by Django REST framework, which encapsulates common model operation methods. The model class provides the default addition, deletion, modification and query functions. It inherits from GenericViewSet, ListModelMixin, RetrieveModelMixin, CreateModelMixin, UpdateModelMixin, DestoryModelMixin. Knowledge points Request url Features GenericViewSet Provides a set of common […]