“Leia de um arquivo c” Respostas de código

Escreva no arquivo em C

#include<stdio.h>
int main(){
	FILE *out=fopen("name_of_file.txt","w");
	fputs("Hello File",out);
	fclose(out);
	return 0;
}
JJSE

Leia os arquivos em C

#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;
}
JJSE

Leia de um arquivo c

// 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;
}
Snehasish Dhar

Leia o arquivo c

#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;
}
Eyal_Amsalem

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