fopen_s in c code example

Example 1: fopen function in c

#include<stdio.h>
#include<conio.h>
void main(){
  FILE *fp;
  //r means read file
  fp=fopen("sam.txt","r");
  fclose(fp);
  getch();
}

Example 2: fopen c

FILE *fopen(const char *filename, const char *mode)