Tag：programming
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Time：2021-10-20
Video address Headline address:https://www.ixigua.com/i676544267458235648…Station B address:https://www.bilibili.com/video/av78062009?…Netease cloud classroom address:https://study.163.com/course/introduction…. Explanation content 1. Write test #[cfg(test)] mod tests { #[test] fn it_works() { assert_eq!(2 + 2, 4); } } 2. Run test cargo test 3. Using the assert macro std::assert! std::assert_eq! std::assert_ne! rust Video tutorial Trust programming language This work adoptsCC agreement, reprint must indicate the […]
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Time：2021-10-20
#Here is a series of functions that define the server. It is the first example in Chapter 7 of Python Network programming# This is for the latter function to call, and then we will study network single thread programming, multi-threaded programming, asynchronous network programming, etc# Import the network programming socket, time, CMD parameter acquisition module […]
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Time：2021-10-20
With react16.8 addedHookFeatures to enhance the function of functional components; And vue3.0 introduces the composite API, which makes people wonder why the mainstream front-end framework advocates functional programming so much? Is object-oriented programming no longer popular? First, we need to understand the long-standing (longer than OO) programming paradigm of functional programming. What is functional programming […]
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Time：2021-10-19
“Is the first programming language C reliable?” “Does C have a future?” “Should I consider learning C?” “C is too old!” Have you ever heard similar words? I’ve heard countless times. Some are face-to-face conversations, while others come from a forum. Although the answer is “depends on the specific situation”, in my humble opinion, learning […]
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Time：2021-10-19
Mongodb series: Install mongodb using yum Command operation of mongodb Programming operation of mongodb Before introducing the specific operation and use of mongodb, it is necessary to introduce some basic concepts of mongodb. With these foundations and knowledge, you can master the following operations more solidly and understand them more thoroughly. Mongodb database is different […]
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Time：2021-10-18
Mongodb series: Install mongodb using yum Command operation of mongodb Programming operation of mongodb The previous article first introduced the installation of mongodb database system, then introduced the shell tool of mongodb to operate the database, and mastered the four basic operations of adding, deleting, modifying and querying the database from the command line. Now […]
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Time：2021-10-17
This paper is organized by colodoo (paper umbrella) QQ 425343603 Java learning exchange group (717726984) Reference book the art of Java Concurrent Programming The original text will be attached to the notes. If you don’t want to see the original text, you can only look at the summary of the list Context switching Single core […]
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Time：2021-10-17
I have great enthusiasm for research technology, 18 this year. Since junior high school, the seed of the desire to control computers freely has been planted. In senior one, I saw the word programming from the information technology textbook for the first time, and took a small example of drawing quadratic function images written in […]
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Time：2021-10-16
1. =： In C language, the equal sign (=) is the assignment operator. The following is a brief description of the use of the assignment operator 1) Assignment of variables: inta; a = 10; Here is the assignment of 10 to A. after the assignment, the value of a is 10 2) Assignment of pointer […]
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Time：2021-10-14
Many engineers like to encapsulate some existing functions of the standard library. In fact, the functions encapsulated by themselves are not necessarily better than the standard library. Sometimes, the code is more redundant and has bugs. Let’s share some common standard libraries of C language. Standard header files include: 1、 Standard definition（） fileIt contains […]
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Time：2021-10-14
1. Use Ali’s fastjason 1.1 project pom.xml dependency <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.58</version> </dependency> public static void main(String[] args) { String jsonString = “{\”_index\”:\”book_shop\”,\”_type\”:\”it_book\”,\”_id\”:\”1\”,\”_score\”:1.0,” + “\”_ Source \ “: {\” name \ “: \” Java programming ideas (4th Edition) \ “, \” author \ “: \” [US] Bruce Eckel \ “, \” category \ “: \” […]
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Time：2021-10-13
Ruffian Heng embedded semi monthly: issue 41 Here we share some interesting projects / tools and some hot news in the embedded field. The lunar year is divided into 24 solar terms. We hope to release one issue on time on each festival day. This journal is an open source project (GitHub:JayHeng/pzh-mcu-bi-weekly）, you are welcome […]
