Found a total of 10000 related content
C language file operation: How to close a file?
Article Introduction：C language file operation: How to close a file? Preface file operation is a very important topic in C language. After opening a file, it must be closed to free up system resources and ensure data integrity. This article will guide you how to close files in C language. Syntax To close a file, use the fclose() function. The syntax is as follows: intfclose(FILE*fp); where fp is the file pointer to be closed. Return value The fclose() function returns 0 to indicate successful closing of the file, otherwise it returns EOF (indicating the end file). Practical case: Read the file and close Let's write a C program, read data from the file and display it on the screen. The program also demonstrates
2025-04-04
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In-depth analysis of C language file operation problems
Article Introduction：In-depth analysis of C language file operation problems Preface file operation is an important function in C language programming. However, it can also be a challenging area, especially when dealing with complex file structures. This article will deeply analyze common problems in C language file operation and provide practical cases to clarify solutions. When opening and closing a file, there are two main modes: r (read-only) and w (write-only). To open a file, you can use the fopen() function: FILE*fp=fopen("file.txt","r"); After opening the file, it must be closed after use to free the resource: fclose(fp); Reading and writing data can make
2025-04-04
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The truth behind the C language file operation problem
Article Introduction：The truth about file operation problems: file opening failed: insufficient permissions, wrong paths, and file occupied. Data writing failed: the buffer is full, the file is not writable, and the disk space is insufficient. Other FAQs: slow file traversal, incorrect text file encoding, and binary file reading errors.
2025-04-04
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Where to Find Contra: Operation Galuga Save File Location on PC
Article Introduction：Contra: Operation Galuga is a newly released shooter video game published by Konami. Here this post on php.cn Software focuses on Contra: Operation Galuga save file location and explains how to back up Contra: Operation Galuga save files.
2025-04-11
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490
Why Must Java File and Public Class Names Match?
Article Introduction：Why the File and Public Class Names Must Match in JavaIn Java, it is a convention that the filename and the public class name within that file...
2024-12-04
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C language file operation: How to read files?
Article Introduction：C language file operation: Read file introduction File processing is a crucial part of C language programming, which allows programs to interact with external storage devices such as disks and flash drives. This article will explore how to read files in C language. Steps to read a file to open the file: use the fopen function to open the file. This function requires two parameters: file name and open mode. Check whether the file is open: Check whether the pointer returned by the fopen function is NULL. If NULL, the file cannot be opened. Read file: Use the fread function to read data from the file to the buffer. This function requires four parameters: buffer address, buffer element size, number of elements to be read, and file pointer. Close the file: Use f
2025-04-04
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C language file operation: How to deal with temporary files?
Article Introduction：C language file operation: Processing temporary files Temporary files are temporary files used to store temporary data. In some cases, this is very useful when you need to store some data that needs to be deleted later. In C, you can use the tmpfile() function to create temporary files. This function returns a FILE pointer to a temporary file, which will be automatically deleted when the program exits. For example, the following code creates a temporary file and writes some data: #include#includeintmain(){FILE*fp;fp=tmpfile();if(fp==NULL){
2025-04-04
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