fread() fread() is a standard library function in C language for reading data from a file or stream. It is a very powerful and versatile function that is often used to read binary files, but can also be used to read text files. Function prototype: size_t fread(void *ptr, size_t size, size_t count, FILE *stream); Parameters: […]
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How to use fread in R language?
How to use fread in R language? The note content shared today is about the data reading artifact fread, which is extremely fast. In R language, the fread function is a powerful data reading function in the data.table package, which can be used to quickly read large data files. It is faster than the basic […]
How to use python for text proofreading, python shortcut keys for adjusting alignment
Hello everyone, the editor is here to answer the following questions for you, how to use python to proofread text, and the shortcut keys for adjusting alignment in python. Now let us take a look! Use Python to process Word files Install the external module python-docx pip install python-docx 1. View Word file structure from […]
Standard IO_file reading and writing_fgetc, getchar, ungetc, fgets, fputs, fread, fwrite
Directory 1. Single-character file reading and writing 1.1 Single character read file 1.1.1 fgetc function 1.1.2 getc function 1.1.3 getchar function 1.1.4 ungetc function 1.1.5 Comprehensive sample code for reading single-character files 1.2 Single-character write file 1.2.1 fputc function 1.2.2 putc function 1.2.3 putchar function 1.2.4 Comprehensive sample code for single-character write file 2. Multi-character […]
Standard IO process thread functions: fopen, perror, fclose, fprintf, fscanf, fputc, fgetc, buffer, fputs, fgets, fwrite, fread, fseek, ftell,
Standard IO functions: 1. Stream pointer (FILE*): FILE* fp=fopen(“1.txt”,”r”): This fp is a stream pointer. When this file is opened in read-only mode, a buffer will be applied for at the same time. At this time, the stream pointer fp It will contain the information of the current reading position of the file, if it […]
The content written by fwrite is garbled when the txt is opened. When calling fread again to read txt, the command window will always be stuck.
#include <stdio.h> #include <stdlib.h> #define year 4 //Define the university year as 4 years #define MAX 10 //Define the maximum value typedef //add structure name struct Student{ char name[10]; //store student name int id; int yw[4]; int sx[4]; int yy[4]; } stu; //Modify the structure name stu student[10], temp; //declare student array and temp int […]
File operations and related functions fwrite, fread, fseek, ftell, rwind, feof
Blogger’s homepage: @. Yihuai Mingyue? ?Column Series: Linear Algebra, C Beginner Training, Problem Solving C, C Use Articles, “Beginner” C++ Motto: “Don’t wait until you have nothing before you make up your mind to do it” If you feel good, I beg you to pay more attention, a little love, give pointers Directory File operation […]
C language file operation, introduction of fopen, fclose, fgetc, fgets, fputc, fputs, fwrite, fread, feof, ferror, fprintf, fscanf and other file functions
Article directory Why use files what is a file file opening and closing file pointer file opening and closing Sequential reading and writing of files Compare a set of functions Random reading and writing of files fseek ftell function rewind function text files and binary files Judgment of the end of file reading misused feof […]