[C언어] IO

//****************************************************************************
// IO
//****************************************************************************

#include <stdio.h>
#include <conio.h>

void main()
{
// int i;
 int a,b,c;
 char buf[32];
 FILE *fp;
 //fopen : 파일 열기 함수!!
 /*if((fp = fopen("bit.txt","w"))==NULL)
 {
  puts("파일 열기 실패!!");
  return;
 }*/
 if((fp = fopen("bit.txt","r"))==NULL)
 {
  puts("파일 열기 실패!!");
  return;
 }
//****************************************************************************
//파일 작업들...
//****************************************************************************
//쓰기 - Text모드
//1) 문자 쓰기
//****************************************************************************

// i=0;
// while(buf[i]!=NULL)
// {
//  fputc(buf[i],fp);
//  i++;
// }
//****************************************************************************
//2) 문자열 쓰기
//****************************************************************************
// fputs(buf,fp);

//****************************************************************************
//3) 형시확된 쓰기
//****************************************************************************

// fprintf(fp,"%s %d %d",buf, 100, 200);
//****************************************************************************
//파일에서 읽어 오기!!!
//****************************************************************************
//1) 문자단위
//****************************************************************************
// printf("%a",fgetc(fp));
/*
 while((i=fgetc(fp)) != EOF)
 {
  putch(i);
 }*/
//****************************************************************************
//2) 문장단위
//****************************************************************************
/* while(fgets(buf, 32, fp) != NULL)
 {
  printf(buf);
 }*/
//****************************************************************************
//3) 형식화된 입출력
//****************************************************************************
 while(fscanf(fp,"%s %d %d %d",buf,&a,&b,&c) != EOF)
  printf("%s %d %d %d \n",buf,a,b,c);

//****************************************************************************
//파일 닫기..
//****************************************************************************

// fclose(fp);
//****************************************************************************

}
by 훈강