Programmer Group

1, What is fetch()? fetch() is the browser's built-in global JavaScript method. It is used to issue http requests. It can be used directly without downloading and installing. // A simple http request fetch('http://example.com/movies.json') .then(function (response) { return response.json(); }) .then(function (myJson) { ...

IntroductionThe 2021 Tencent game annual conference was held online. This year, with the strategic concept of "super digital scene" as the core, the press conference conveyed constructive thinking on game cognition and industrial boundary, and demonstrated the rich experience and diversified value brought by Tencent games to players t ...

Operation ① 1.1 operation content Assignment ①: Requirements: be familiar with Selenium's search for HTML elements, crawling Ajax web page data, waiting for HTML elements, etc. Use Selenium framework to crawl the information and pictures of certain commodities in Jingdong Mall. Candidate sites: http://www.jd.com/ Key words: Students' free choic ...

      It is said that RT thread OS developed by Chinese people has been for some time and has not been tried. After all, learning a new platform takes a lot of time and energy. The main purpose of testing RT thread this time is to use its dynamic library function. Now the Cortex-M series Arm processor is very powerful. However, ...

Have you mastered these 10 knowledge points of TS?   The day before yesterday The following article comes from the way of cultivating immortals in the whole stack  ， Author a Baoge The whole stack is the way to cultivate immortals Focus on sharing technical dry goods such as TS, Vue3, front-end architecture and source code anal ...

In the last blog post, I introduced the use of MySQL database to obtain pymysql. For reference: https://www.cnblogs.com/minseo/p/15597428.html This article introduces the use of asynchronous MySQL asynchronous driver aiomysql 1. Install asynchronous module If there is no module, install the module using pip first pip3 install asyncio pip3 inst ...

This article briefly introduces how to dynamically create the implementation instance object of the interface, including two knowledge points: 1. How to obtain all implementation instance objects of the interface? 2. How to judge whether the constructor of an instance object has parameters? preparation First, create an interface object named IA ...

Article catalog What is spring MVC A long time ago, SSH was the most popular architecture mode(   Spring   Struts encapsulates servlet s   hibernate  );–> Baidu Encyclopedia SSH Framework Then came SSM(   Spring   Struts   Mybatis  ) ; Note that it's not working here yet   Spring MVC &nbs ...

Jenkins+harbor+gitlab+k8s deploy maven project 1, Overview The deployment flow chart of maven project is as follows:       Environment introduction operating system ip role edition ubuntu-16.04.4-server-amd64 192.168.10.122 Jenkins+harbor Jenkins 2.176.2，harbor 1.8.1 ubuntu-16.04.4-server-amd64 192.168.10.134 gitlab gitlab-ce_12.1. ...

1. Overview of extern "C" The main function of extern "C" is to implement other C codes in C++ code. The format is as follows: cplusplus is the default macro defined by the C + + compiler, and the code block part is the C language implementation code. Extern "C" instructs the compiler to compile this part of ...