求助以下源码如何读完后如何停止

#include <stdio.h>
int main()
{
    FILE *in;
    int i;
    int *a;
    in=fopen("stdin.c","r");
   
    for(;i!=EOF; i++)
        {     
    fscanf(in,"%c",&a);
        printf("%c\n",a);
        }
    fclose(in);
    return 0;
}

读的系以下文件
#include <string.h>

#include <stdio.h>

 

int main(void)

{

FILE *stream;

char string[] = "This is a test";

char msg[20];

 

/* open a file for update */

stream = fopen("DUMMY.FIL", "w+");

 

/* write a string into the file */

fwrite(string, strlen(string), 1, stream);

 

/* seek to the start of the file */

fseek(stream, 0, SEEK_SET);

 

/* read a string from the file */

fgets(msg, strlen(string)+1, stream);

 

/* display the string */

printf("%s", msg);

 

fclose(stream);

return 0;

}

[ 本帖最后由 莫桑比克 于 2011-8-2 22:14 编辑 ]

谢谢了。