Click on the above “Mechanical and Electronic Engineering Technology” to follow us 1. API In Linux system programming, file read and write involve a series of standard POSIX APIs. Here are some commonly used file operation-related APIs and their detailed descriptions: open() Function The open() function is used to open a file and returns a … Read more
Linux | Red Hat Certified | IT Technology | Operations Engineer 👇 Join the technical exchange QQ group with 1000 members, note 【Public Account】 for faster approval 1. Getting Input When building a simple Shell, the first step is to get input and obtain environment variables: it can run like a shell and retrieve some … Read more
Linux | Red Hat Certified | IT Technology | Operations Engineer 👇 Join the technical exchange QQ group with 1000 members, note 【public account】 for faster approval 1. Concept of Newline In the Linux system, \n and \r are two important escape characters, representing newline and carriage return respectively, each having different functions and application … Read more
New User Registration for June Breadboard Community Get a Free IoT Learning Package The package includes: 1. 500 copies of “RT-Thread Device Driver Development Guide” 2. 16 lectures of RT-Thread online teaching courses 3. 10GB of IoT data downloads 👇 Scan to register and receive the package 👇 1 Introduction In my previous article, I … Read more
Recently, NetEase Cloud Classroom opened a course called Linux Kernel Analysis. I have always been interested in operating systems and the essence of computers, so I took a look. In the first class, the teacher asked students to write a blog about the first lesson as an assignment. I was quite surprised by this novel … Read more
Click the blue text Follow us Due to changes in public account push rules, please click “View” and mark as “Star” to get exciting technical shares in the first time Source from the internet, infringement will be deleted 1. About C Language Structures: First, why do we need to use structures? We have already learned … Read more
Pointer arithmetic allows arithmetic operations on pointers in C, such as addition and subtraction. However, since pointers store addresses, performing arithmetic operations with integer types will result in a pointer. When subtracting one pointer from another, the result will be an integer value. In C, you can perform the following arithmetic operations on pointers: Increment … Read more
Huazhong University of Science and Technology IT Home hkithome The official WeChat platform of the School of Computer Science, North China University of Science and Technology, focused on technological innovation, dedicated to resource sharing, the latest updates from the college, fashionable and fun IT news, we have everything you want to know! Algorithms are the … Read more
Although C language has been developed for many years and is no longer as popular, it remains one of the most widely used low-level languages. Whether it’s C++ or microcontrollers, C language algorithms are essential. Below are 15 C language algorithms that can help a beginner quickly master microcontrollers. 1. Sorting Algorithms There are many … Read more
Errors are problems or faults that occur in a program, causing abnormal behavior, and even experienced developers can encounter these errors. Programming errors are also referred to as bugs or faults, and the process of eliminating these errors is called debugging. These errors are detected during compilation or execution. Therefore, errors must be removed from … Read more