Today, we won’t waste time on small talk; let’s dive directly into a design principle that isextremely important in program design — the Table-Driven Method (Table-Driven Methods). Many students, when writing code, encounter multiple branching conditions and their first reaction is to write a bunch of if-else or switch-case. While writing, it feels logical, but … Read more
For the GESP Level 3 exam: C++ 202403 Level 3 Letter SummationThis problem is relatively simple, but the main difficulties are:1. Confusing character type conversions can lead to chaotic results, with conversions going back and forth.2. Candidates often struggle to remember ASCII codes; what should they do? How much to subtract or add?Look at the … Read more
The first bad habit is that string concatenation is done one by one, especially when concatenating multiple strings, which results in multiple value copies. Only an 18-year-old freshman would really nitpick every word. In the end, code is just code; when you see a mess, you won’t care about these archaic writing styles that you … Read more
In the process of embedded software development, it is generally true that more time is spent on testing than on coding, often at a ratio of 3:1 (or even more). This ratio decreases as your programming and testing skills improve, but regardless, software testing is crucial for most people. Many years ago, a developer asked … Read more
Introduction to Sorting Algorithms In the world of programming, sorting algorithms act like diligent “organizers,” arranging chaotic data in a specific order. Their applications are extensive; for instance, on e-commerce platforms, sorting algorithms allow products to be sorted by price, sales volume, and other factors, making it easier for users to find their desired items. … Read more
Click the blue text above to follow us01IntroductionIn the world of PLC programming, addresses are like the “house numbers” of devices. In traditional programming, these “house numbers” are often hard-coded. Imagine having to write nearly identical control logic for 10 identical motors just because their addresses are different; or when a production line needs to … Read more
The first step is to look at embedded issues from the perspective of PC programming; The second step is to learn to use embedded programming concepts; The third step is to combine PC and embedded thinking and apply it to real projects. Many friends transition from PC programming to embedded programming. In China, very few … Read more
Source: Fast Technology Recently, the floppy disk driver in the Linux kernel has received a maintenance update after three years, which was submitted by Intel engineer Andy Shevchenko, primarily focusing on code cleanup and optimization. The update includes: removing the unused CROSS_64KB() macro from arch/code, replacing the custom SZ_64K constant, and sorting the headers alphabetically. … Read more
Follow + Star, learn new Python skills every day Source: Internet “Python is a truly wonderful language. When someone has a good idea, it takes about a minute and 5 lines of code to write something that can almost achieve what you want. Then it takes just an hour to expand the script to 300 … Read more
1. Background of ConsiderationRecently, I used the Hechuan M500S to create a single-station hinge drill, and the results were quite good. This led me to wonder if I could continue using the M500S for a wired dual-station hinge drill.2. Detailed Analysis2.1 Hardware LevelThe single-station hinge drill used two EtherCAT servos, while the wired dual-station hinge … Read more
