Anzhihe | 安志合

Original link: https://chegva.com/5474.html The most professional English learning navigation UP-6 Learn foreign languages ​​online for free Word memory and English muscle memory exercise software Qwerty Learner Online English Sentence Grammar Analysis Address Enpuz Pronunciation Corrector Address Pronunciation-corrector Online English Listening Practice ELLLO Learn English Listening Speaking Babel English Online English Number Listening Exercise English Number […]

Original link: https://chegva.com/5473.html ◎Knowledge points The use of the with statement and exception handling with statement execution flow ◎Script practice “””with statement””” “”” If a class object implements the special methods __enter__() and __exit__(), then the class object is said to comply with the context management protocol, Also, an instance object of this class object

Original link: https://chegva.com/5472.html ◎Knowledge points custom exception exceptions and functions Get exception information ◎Script practice ▽ Custom exception “”” Although python’s built-in exception class objects can meet most of our needs, sometimes we may want to create custom exception class objects. Just as the base class of all built-in exception class objects is Exception, custom

Original link: https://chegva.com/5471.html ◎Knowledge points Add an else clause after the try-except statement Add a finally clause after the try-except statement Manually throwing exceptions using the raise statement ◎Script practice ▽ Add the else clause after the try-except statement “”” You can add an else clause after a while statement or a for-in statement, so

Original link: https://chegva.com/5318.html ◎About Ouyang Xiu Ouyang Xiu (August 6, 1007 – September 22, 1072), courtesy name Uncle Yong, numbered Drunkard, Liuyi Lay, and posthumously named Wenzhong. His native place was Luling, Jizhou (now Ji’an City, Jiangxi Province), and he was born in Mianzhou (now Mianyang, Sichuan). He was a writer, historian and politician in

Original link: https://chegva.com/5469.html ◎Knowledge points Catch and handle exceptions with try-except statements ◎Script practice “”” When the program generates an exception during running, in order to allow the program to continue to run, the thrown exception instance object can be captured and processed. This is achieved with a try-except statement: Put the code that may

Original link: https://chegva.com/5468.html ◎Knowledge points What is an exception? Built-in exception class object ◎Script practice ▽ What is abnormal? “”” What is an exception? An exception refers to a specific error that occurs during the execution of a program under the premise that there is no syntax error. Each specific error corresponds to an exception

Original link: https://chegva.com/5465.html When debugging the front-end recently, I found that when creating and editing, a quick click will cause the interface to be called multiple times in an instant, and it is necessary to perform an anti-shake operation on the front-end. Specifically, when the form point is saved, the operation method is debounced, and

Original link: https://chegva.com/5463.html 2023 postgraduate entrance examination materials collection introduction This is a website for the collection of 2023 postgraduate entrance examination materials. It is free. The postgraduate entrance examination materials for each subject are all shared through the network disk. There is no need to register and log in. You can find what you

Original link: https://chegva.com/5455.html In recent work, it is necessary to judge the type of data obtained in order to perform corresponding operations. After learning it online, I have developed a method for convenience, as follows: /** * @name: $determineType * @cname: Determine the type* @desc: Determine the Javascript data type* @param (*) datatype pass in

Original link: https://chegva.com/5445.html ◎Knowledge points Call the built-in function dir to view all properties of the module __doc__ of special attributes of modules __name__ of special attributes of modules Single underscore for data access control within a module Special attribute for data access control within a module _ _all__ ◎Script practice ▽ Call the built-in

Original link: https://chegva.com/5444.html ◎Knowledge points The searched modules are compiled into pyc bytecode files run the imported module Reload an already imported module Install and configure Anaconda ◎Script practice ▽ The searched modules are compiled into pyc bytecode files “”” When importing a module using the import statement, if the module has not been imported,

Original link: https://chegva.com/5430.html WEB technology basic knowledge points Simple and practical ES6 approach ES6 common syntax recommendation Commonly used front-end JavaScript method encapsulation love-u.js A js library that allows people to get off work earlier Collection of common regular expressions This article is reprinted from: https://chegva.com/5430.html This site is for inclusion only, and the copyright