Fgets and fgetc Read File instances

Fgetc reads information from the file (EOF value:-1)

 
# Include <stdio. h>

IntMain (Void)
{
File * stream;
IntCh;

Stream = fopen ("/Home/chenyadong/desktop/temp1","R +");

Do{
Ch = fgetc (Stream );
If(CH = EOF)
Break;
Putc (CH, stdout );
}While(1);

Fclose (Stream );
Return 0;
}
 

 

Fgets reads information from the file

# Include <stdio. h>

 Int Main ( Void )
{
File * stream;
 Char Ch [ 256 ];

Stream = fopen ( "  /Home/chenyadong/desktop/temp1  " , "  R +  " );

Do {
Fgets (CH, 256 , Stream );
 If (Feof (Stream ))
 Break ;
Fputs (CH, stdout );
} While ( 1 );

Fclose (Stream );
 Return   0 ;
}

 

If no judgment is added, do {} while (! Feof (Stream ));

For example:

 
Do{
Ch = fgetc (Stream );
Putc (CH, stdout );
}While(! Feof (Stream ));
 

 
Do{
Fgets (CH,256, Stream );
Fputs (CH, stdout );
}While(! Feof (Stream ));
 

Use fgetc to obtain:

Hello World
We are you
��

Use fgets to obtain:

Hello World

I love you

I love you

In the first two examples, the result is:

Hello World

I love you

Why are these different results? Is fgetc or fgets changing the position pointer of the file? Or other reasons?

 

But in the following example, do {} while (! Feof (Stream); (what is the difference between the first two examples ?)

# Include <stdio. h>
# Include < String . H>

 Int Main ( Void )
{
File * stream;
 Char * String = "  Hello world \ ni love you  " ;
 Char Ch [ 256 ];

Stream = fopen ( "  /Home/chenyadong/desktop/temp  " , "  W +  " );
Fwrite ( String , Strlen ( String ), 1 , Stream );
Fseek (stream, 0 , Seek_set );

 Do {
Fgets (CH, 256 , Stream );
Fputs (CH, stdout );
} While (! Feof (Stream ));

Fclose (Stream );
 Return  0 ;
}

Get:

Hello World

I love you

 

Huan HUan, a solution ~