Programmer Think

Object can encapsulate multiple associated data to better describe a thing. Using objects to describe things is more conducive for us to separate real things into a data structure in the code: therefore, some programming languages are pure object-oriented programming languages, which are better than Java; When creating any class, you need to ab ...

Reference ----- > https://www.cnblogs.com/arnoldlu/p/13055501.html   Test environment: Linux al-B250-HD3 4.15.0-99-generic #100~16.04.1-Ubuntu SMP Wed Apr 22 23:56:30 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux 1. Introduction to overlayfs OverlayFS is a stacked file system. It relies on and builds on other file systems, does not directly partic ...

The design principle is a summary of some experience guiding our code design, that is, "mental method"; Object oriented is our "weapon"; Design pattern is "move". Based on mental skill, use weapon moves to deal with complex programming problems. Me: sister, what do I think you've been busy lately? Didn't you chang ...

Python: process control and built-in methods while+else of process control Yesterday, we talked about adding the keyword "break" to end the while loop. The usage of while+else is that when the while loop ends normally without using the keyword "break", else code can be executed. Take a look at the code structure: ''' while ...

Do you feel that Go's sync package is not enough? Have you ever encountered a type without sync/atomic support? Let's take a look at some value-added additions of go zero's syncx package to the standard library. https://github.com/tal-tech/go-zero/tree/master/core/syncx name effect AtomicBool bool ty ...

Batch automatic matting of pictures to remove backgroundToday, I found a good thing called pickwant.com, which is an online website that automatically extracts pictures to remove the background. As long as you upload the picture, you can automatically remove the background and pull out the target object.Whether animals, cars or various products ...

Recursion & iterationrecursionRecursion is often used to describe the process of repeating things by self similar method. In mathematics and computer science, it refers to the method of using function itself in function definition. (A calls A)iterationRepeat the activity of the feedback process, and the result of each iteration will be used ...

The quick start series has reached Chapter 6, and we are finally going to touch the content of programming practice. The content in this tutorial assumes that you have a certain basic grasp of Python language development:   Understand Python data results Understand the concept of object-oriented programming Can use control statements t ...

Currying Currying It is a high-order technology about function. It is used not only in JavaScript, but also in other programming languages. Coriolism is a function conversion, which refers to converting a function from callable f(a, b, c) to callable f(a)(b)(c). Corellization does not call functions. It just converts functions. Let's take a ...

computed: calculated attribute, which is generally used when a variable depends on the change of multiple variables or needs some processing. The value is responsiveThe data is cached Calculation attribute: cache based on their response type. It will be re evaluated only when the related response type dependency changes. The following i ...