From “Command Novice” to “Terminal Expert”: Unlocking the Efficiency Secrets of Linux in Just 3 Minutes a Day In the server room at 2 AM, operations engineer Xiao Lin stares at the scrolling logs on the screen, his fingers flying over the keyboard. While his colleagues struggle to find files in the graphical interface, he … Read more
bit7z: A Powerful C++ Compression Library In modern software development, file compression and decompression are common requirements. bit7z is a cross-platform C++ static library that provides a simple and easy-to-use interface for interacting with the 7-Zip dynamic library, enabling file compression and decompression. Feature-Rich to Meet Various Needs bit7z supports multiple compression and decompression formats. … Read more
(Note: The code in this article is run using PyCharm) (Content is concise, reading time is only a few minutes) In today’s lesson, we will learn how to handle files, which allows our programs to process large amounts of data. py01 Reading Data from a FilePython is easy to use01Reading the Entire File First, we … Read more
The eof function in C++ is primarily used to detect whether the input stream has reached the end of the file. Below is a detailed explanation of its usage and considerations: 1. Basic Usage eof is a member function of the istream class (including ifstream and cin), with the syntax: istreamVar.eof() where istreamVar is the … Read more
We know that calling the open() method to open a file is the process of establishing a connection between the file stream object and the file. Therefore, calling the close() method to close an opened file can be understood as severing the connection between the file stream object and the file. Note that the close() … Read more
When reading and writing files, sometimes you want to jump directly to a certain position in the file to start reading or writing. This requires first setting the file’s read/write pointer to that position before performing read or write operations. The ifstream class and fstream class have the seekg member function, which can set the … Read more
The black hole in Linux refers to /dev/null—a file that only accepts input but never outputs anything. Anything you throw into it disappears forever, commonly used for “silencing” or “placeholder” purposes. 1. Why is it called a black hole? Reading from it: Immediately returns EOF (end of file). Writing to it: The system directly discards … Read more
1. Problem DescriptionIn the course of teaching, we often need to process some text materials for creating a corpus. For example, in a folder named 【Four-Level Papers】, there are multiple folders containing past four-level exam papers, each with files like Four-Level Exam Papers.docx and Exam Paper Analysis.docx. I want to extract the files that contain … Read more
How to Read Files First, we create a file that contains our daily to-do list: example.txt Daily To-Do List ============ 【Today's Tasks】 1. Submit last week's work summary by 8:30 AM 2. Attend the departmental meeting at 10:00 AM, take notes on key points 3. Meet with the client to revise requirements at 2:00 PM, … Read more
This article is based on practical experience and summarizes the reading and parsing of local HTML files in a Python environment, especially focusing on encoding checks and error issues. Introduction In a Python environment, the most commonly used method for reading local HTML files is the built-in file operation function open().The basic syntax of the … Read more