散分 ，顺便请问有关问题

散分 ，顺便请教问题
文本文件内容如下：
0x00,   0x00,   0x02,   0x30,   0x00,   0x00,   0x00,   0x00,   0x25,   0x01,   0x01,   0x10,   0x01,   0x02,   0x00,   0x00,
0x00,   0x00,   0x00,   0x00,   0x00,   0x00,   0x00,   0x00,   0x00,   0xb5,   0xd8,   0xcf,   0xc2,   0xa3,   0xb1,   0xb3,
0xac,   0xca,   0xd0,   0xa1,   0xa1,   0xa1,   0xa1,   0xa1,   0xa1,   0xa1,   0xa1,   0xa1,   0xa1,   0xca,   0x25,   0x01
比如说我现在想从这个文本文件的0x25开始读取，然后把读取出来的数据在屏幕上打印出来   ，请问这个读取数据的过程是怎样做的   ？具体是   如何实现的？谢谢，请高手帮帮我


------解决方案--------------------
从文件的头指针开始一个一个读下去，
当然，在这个过程中要保留四个字符
比如生成一个四个空间的字符数组
每读取下一个，那么就把
2-〉1，3-〉2，4-〉3移动一个位置，然后把新读取近来的字符
添加到末尾 4 这个位置，判断它是不是 0X25
然后

------解决方案--------------------
先接分，再看题目
------解决方案--------------------
同意楼上
------解决方案--------------------
/*-----------------------------

http://community.csdn.net/Expert/TopicView3.asp?id=5746261

*---------------------------*/

#include <stdlib.h>
#include <stdio.h>

#define WORD_MAXLEN 8
char buf[WORD_MAXLEN];
int idx;
/**
@ret
0 - ok
-1 -error
**/
int read(FILE *fp)
{
int c;
while(1)
{
c = getc(fp);
switch(c)
{
case ', ':
buf[idx] = '\0 ';
idx=0;
return 0;;
case '\n ':
break;
case EOF:
return -1;

default:
buf[idx++] = c;
}
}
}

/* just for demostration , no error handler */
int main(int argc, char**argv)
{
FILE *in = stdin;
int data;
int started = 0;

if(argc> 1)
{
in = fopen(argv[1], "r ");
if (!in)
exit(1);
}



while (read(in) != -1)
{

/* str form */
printf ( "\nstr: %4s ", buf);

/* int form */
sscanf (buf, "%x ", &data);
if (data == 0x25)
started = 1;

if (started)
printf ( ", int: %x ", data);
}

if (argc> 1)
fclose (in);
}

-------------------- output -------------------
tr: 0x00
str: 0x00
str: 0x02
str: 0x30
str: 0x00
str: 0x00
str: 0x00
str: 0x00
str: 0x25, int: 25
str: 0x01, int: 1
str: 0x01, int: 1
str: 0x10, int: 10
str: 0x01, int: 1
str: 0x02, int: 2
str: 0x00, int: 0
str: 0x00, int: 0
str: 0x00, int: 0
str: 0x00, int: 0
str: 0x00, int: 0
str: 0x00, int: 0
str: 0x00, int: 0
str: 0x00, int: 0
str: 0x00, int: 0
str: 0x00, int: 0
str: 0x00, int: 0
str: 0xb5, int: b5
str: 0xd8, int: d8
str: 0xcf, int: cf
str: 0xc2, int: c2
str: 0xa3, int: a3
str: 0xb1, int: b1
str: 0xb3, int: b3
str: 0xac, int: ac
str: 0xca, int: ca
str: 0xd0, int: d0
str: 0xa1, int: a1
str: 0xa1, int: a1
str: 0xa1, int: a1
str: 0xa1, int: a1
str: 0xa1, int: a1
str: 0xa1, int: a1