Fputs and Fgets read and write files by line

1) Use of fputs

#include "stdio.h"
#include "stdlib.h"
#include "string.h"
void Main ()
{
	int i = 0;
	FILE *FP = NULL;
	Char a[100] = "NBBBBCEJFMFMLMNKDFVN";
	Char *fname = "C:/1.txt";
	fp = fopen (fname, "r+");//r+ Read and write
	if (NULL = = fp)
	{
		printf ("Func fopen () err:%s\n", fname);
		return;
	}
        Fputs (A,FP);
	if (fp! = NULL)
	{
		fclose (FP);
	}
	System ("pause");	
}

2) Use of fgets

#include "stdio.h"
#include "stdlib.h"
#include "string.h"
void Main ()
{
	int i = 0;
	FILE *FP = NULL;
	Char buf[100];
	char *p = NULL;
	Char *fname = "C:/1.txt";
	fp = fopen (fname, "R");
	if (NULL = = fp)
	{
		printf ("Func fopen () err:\n");
	}
	while (!feof (FP))
	{
		p = fgets (BUF,100,FP);//returns BUF's first address
		printf ("%s\n", p);
	}
	if (fp! = NULL)
	{
		fclose (FP);
	}
	System ("pause");	
}

Compared to the function name can be easily found differences, (FPUTC and Fgetc) VS (fputs and Fgets), C for Char, character, and S is the string, strings, so, fgets and fputs two functions for " Reads a C-style string from the input file into the character array and writes a C-style string to the output file.
The prototypes for the two functions are:
char * fgets (char * str, int n, FILE * fpin);
int fputs (const char * str, FILE *fpout);
Similarly, Fpin must be a file pointer opened in either read or read-only mode, and Fpout must be a file pointer opened in write, read-write, or append mode.
For the fgets function, n must be a positive integer, indicating that the number of characters read from the file is not more than n-1, stored in the character array str, and the end sign ' + ' at the end, in other words, n represents the length of the character array, or sizeof (str). If the read process encounters a newline character or a file end flag, the read operation ends. If read normally, returns a pointer to str that represents a string, otherwise returns null (NULL pointer).