Écrire dans le fichier en c
#include<stdio.h>
int main(){
FILE *out=fopen("name_of_file.txt","w");
fputs("Hello File",out);
fclose(out);
return 0;
}
JJSE
#include<stdio.h>
int main(){
FILE *out=fopen("name_of_file.txt","w");
fputs("Hello File",out);
fclose(out);
return 0;
}#include<stdio.h>
int main(){
FILE *in=fopen("name_of_file.txt","r");
char c;
while((c=fgetc(in))!=EOF)
putchar(c);
fclose(in);
return 0;
}// C program to implement
// the above approach
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// Driver code
int main()
{
FILE* ptr;
char ch;
// Opening file in reading mode
ptr = fopen("test.txt", "r");
if (NULL == ptr) {
printf("file can't be opened \n");
}
printf("content of this file are \n");
// Printing what is written in file
// character by character using loop.
do {
ch = fgetc(ptr);
printf("%c", ch);
// Checking if character is not EOF.
// If it is EOF stop eading.
} while (ch != EOF);
// Closing the file
fclose(ptr);
return 0;
}#include <stdio.h>
#include <stdlib.h>
int main()
{
int num;
FILE *fptr;
if ((fptr = fopen("C:\\program.txt","r")) == NULL){
printf("Error! opening file");
// Program exits if the file pointer returns NULL.
exit(1);
}
fscanf(fptr,"%d", &num);
printf("Value of n=%d", num);
fclose(fptr);
return 0;
}