world!\n")file.write("Welcome to Python file handling.\n")# 移动文件指针到开头file.seek(0)# 读取文件的第一行first_line=file.readline()print("第一行内容:",first_line.strip())# 移动文件指针到第二行的开头file.seek(len(first_line),0)second_line=file.readline()print("第二行...
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The fseek() function in C is a powerful tool for file manipulation, enabling precise control over the positioning of the file pointer within a file. This function plays a crucial role in handling file operations, allowing developers to navigate through files, read or write data at specific loca...
1、文件大小查询file_size.c 方法一:fseek + ftell; 方法二:ftell 1#include <stdio.h>2#include <fcntl.h>3#include <stdlib.h>4#include <string.h>5#include <errno.h>67voiderrHandling(constchar*errMsg)8{9printf("%s: %s\n", errMsg, strerror(errno));10exit(-1);11}1213longgetFileSize1...
Function: streams a complete file and returns the content between two search strings with their search strings (multi byte safe) Hope it helps anyone. PS: It lacks any boolean checks / exception handling for non existing files / read errors. <?php /** * Reads txt-files blockwise * Usage...
File positioning ftell fgetpos fseek fsetpos rewind Error handling clearerr feof ferror perror Operations on files remove rename tmpfiletmpfile_s (C11) tmpnamtmpnam_s (C11) Defined in header<stdio.h> intfseek(FILE*stream,longoffset,intorigin); ...
C Library - fseek() function - The C library fseek(FILE *stream, long int offset, int whence) function sets the file position of the stream to the given offset.This function is a part of the C Standard Library and is used for file handling.
Programmers may managebig files, access data structures in binary files, and modify metadata sections with the help offseek(). Additionally, the function has error-handling features that make it possible to identify and fix problems like looking outside of file boundaries or using closed files. ...