Original link: https://chegva.com/5384.html First Normal Form: Fields are not subdividable The first normal form is that attributes are indivisible, each field should be indivisible, and a field only stores one piece of information. (atomicity) mistake connect Lao Wang, 1381234**, Beijing correct name Telephone Place Lao Wang 1381234** Beijing Second Normal Form: Primary Key Constraint The …
Original link: https://chegva.com/5381.html Understand RESTful Architecture RESTful API Design Guidelines HTTP backend: RESTful API interface design Follow Github to learn Restful HTTP API design RESTful Web API as I understand it [Web Standards] RESTful Web API as I understand it [Design] I summarize 22 best practices for API design Front-end and back-end interface specifications Feishu …
RESTful API interface design and front-end and back-end interface specifications Read More »
Original link: https://chegva.com/5379.html Today, I used the Modal dialog to call the FormModel form and couldn’t get the data of the form. I thought it was a problem with the dialog box. The log output can’t get form data, and no error is reported. It’s really vomiting blood! https://1x.antdv.com/components/form-model-cn/#API First look at the use of …
The Modal dialog in Vue2 calls the FormModel form Read More »
Original link: https://chegva.com/5371.html “Lianshan” , later also known as ” Lianshan Yi “, in ancient times only called “Lianshan”, its name first appeared in “Zhou Li·Chunguan Zongbo·Dabu”, it is said that it was created by the emperor. In ancient times, there were three changes, and ” Zhou Li ” said: “The method of Taibu Zhang’s …
Original link: https://chegva.com/5370.html You need to use git commands frequently at work, and using some shorthand commands can still improve the efficiency. Just put it under ~ /.zshrc on mac, execute source ~/.zshrc after adding, create ~/.bash_aliases in linux, add [[ -f ~/.bash_aliases ]] && source ~/. bash_aliases content First add the following configuration to …
Original link: https://chegva.com/5366.html A set of git quick-start practical tutorials, which are more practical for production. ◎Tutorial document download Take you to learn git.pdf ◎Online video tutorial Take you to learn Git ◎Document online viewing [real3dflipbook id=”75″] This article is reprinted from: https://chegva.com/5366.html This site is for inclusion only, and the copyright belongs to the …
Original link: https://chegva.com/5362.html ◎Knowledge points Overview of modules Use modules from the standard library How to import modules ◎Script practice ▽ Module overview “””I. Overview of the module””” “”” 1. What is a module? A module is a .py file of python. Variables, functions, and classes can be defined in a module. The variables, functions, …
Advanced Python (17)—using modules from the standard library Read More »
Original link: https://chegva.com/5307.html ◎Knowledge points The special method of class object __del__() The special method of class object __getattr__() The special method of class object __getitem __ () The special method of class object __call__() ◎Script practice ▽ The special method of class object __del__() “””One, the special method of class object __del__()””” “”” Objects …
Python Advanced (16) – Special Methods of Class Objects (3) Read More »
Original link: https://chegva.com/5226.html “Reincarnation” A light can remove a thousand years of darkness One Wisdom Destroys Ten Thousand Years of Stupidity The Six Paths of Reincarnation are happening all the time Space folds, people’s roles change Heaven and hell are on earth Birth, old age, sickness and death, joys and sorrows Upside-down dreams, love-hate hatred …
Original link: https://chegva.com/5304.html ◎Knowledge points Special methods of class objects __str__() and __repr__() The special method of class object __new__() ◎Script practice ▽ Special methods of class objects __str__() and __repr__() “””One, special methods of class objects __str__() and __repr__()””” “”” The special methods __str__() and __repr__() of class objects are used to customize and …
Python Advanced (15) – Special Methods of Class Objects (2) Read More »
Original link: https://chegva.com/5351.html Vue2 lifecycle hooks Vue3 lifecycle hooks The difference between life cycle created and mounted in Vue instance (specific details analysis) This article is reprinted from: https://chegva.com/5351.html This site is for inclusion only, and the copyright belongs to the original author.
Original link: https://chegva.com/5349.html Comparison of official positions in ancient and modern China A brief table of the official system of Chinese past dynasties List of lineages and eras of Chinese emperors This article is reprinted from: https://chegva.com/5349.html This site is for inclusion only, and the copyright belongs to the original author.
Original link: https://chegva.com/5348.html Recently I learned to encapsulate some common components of vue2 antdv1.x. There are still some problems in the two-way binding of parent and child components for complex components such as forms and tables. It can work on Vue3, but not on Vue2, which is also very painful. Sooner or later, you still …