Programmer Group

z case: Web carousel map Also known as focus map Functional requirements: When the mouse passes through the rotation chart module, the left and right buttons are displayed and the left and right buttons are hidden Click the button on the right once, and the picture will be played to the left once, and so on. The same is true for the left butto ...

In our work, we often use asynchronous processing tasks. For example, when we send mail on the website, the background will send mail. At this time, the foreground will cause the response to remain motionless. The response will not succeed until the mail is sent. Therefore, we generally use multithreading to process these tasks. There are also ...

Multiple threads can read and write the same file in several situations: Multiple threads read the same file at the same time. In this case, there is no conflict If multiple threads write the same file at the same time, write data will be lost Multiple threads write and read the same file at the same time, which will cause dirty reading ...

problem Using Linux server in k8s cluster linuxserver/docker-calibre-web The image is deployed janeczku/calibre-web , after 211011 upgraded the latest image, it was found that the web page was frequently unresponsive: the browser tab continued to rotate, and the timeout would not be reported until a long time later, and all requests could not b ...

backgroundAlthough there are rising stars such as Jenkins X, Drone and Tekton in the cloud native era, Jenkins, an old CI/CD tool, is still the mainstream use scheme of major companies.For example, the packaging and release of our private cloud products was completed by this old guy. However, the traditional Jenkins Slave one master multi slave ...

Mobile terminal adaptation scheme Concept: The so-called mobile terminal adaptation means that WebApp is displayed in equal proportion on screens of different sizes Method 1: JS dynamic modification with CSS preprocessor (less) // Calculate screen width var screen = document.documentElement.clientWidth; // Calculate the font size, taking o ...

preface I found that many explanations are about how to realize the control of a single interrupt, but there is basically no explanation of multiple interrupts. ZYNQ interrupt Interrupt classification Interrupts are divided into three categories 1) PPI private interrupt 2) SGI software interrupt 3) SPI share interrupt PPI private int ...

Today, I'd like to share with you my new skills of get recently. I use single thread, multi thread and collaborative process to crawl and download the small video of pear video. Without much talk, we begin to boom. Duck, duck!targetDownload and save the technology related video resources on the pear video to the local computertoolPython3.9Pycha ...

The completion quantity is designed based on the waiting queue, so it is obviously impossible to use the completion quantity in the interrupt context. struct completion { unsigned int done; wait_queue_head_t wait; }; Let's take a classic example of using completion quantity: struct kthread_create_info { /* Information passed to k ...

(1) . function parameter default value Initialization parameter. If it is not set, the default value of the parameter is undefined function test(a, b){ console.log(a); console.log(b); } test(1); // 1 // undefined Do not pass arguments, set default values for row parameters Only es6 supports formal parameter assignment function test(a ...