njuhuangmy兄谢谢你帮我解决问题，奉上另外的90分，

[poemlake]

我发了这个贴，你回复就给你加分啊，呵呵
我遇到一个难题，我是学pb的，对于C语言一点也不懂，我往27c512 的eprom中写文件(文件最大512K)，这个文件为扩展名为bin的，是由几个扩展名为.e80的二进制文件合并在一起的，反过来，用eprom读写器读出来以后，为一个整体的二进制文件为.bin 现在要做两个程序，一个是把几个文件(001.e80,002.e80 003.e80 ......)合并在一起，存成.bin文件，一个是把这个 bin文件再分成几个文件，分别存成单个e80文件(001.e80,002.e80,003.e80..... )我注意过，每个e80的文件结尾是 80 80
但数据中间也有 80 80 但可以判断每个e80文件的结尾是80 80 ff ，不能增加e80文件的长度，
我把单个的e80文件和bin文件上传一个打包文件
http://go.6to23.com/poemlake/e80.rar
有哪位热心的朋友帮写一段代码，我在pb中做了一半，但速度太慢，所以想用C，有哪位朋友提供帮助的，我给500分，分不够，我另加，QQ:70237855

[poemlake]

楼上的大哥，你分的倒是对，但分割后出现几个空的文件，这个没法解决吗？

[njuhuangmy]

没多生成文件阿

阿，我知道了，你的那个是因为 .bin 后面多了许多许多 0xff

明天改好了再发给你：）

下面的还没有改， 你自己也可以改的

就在 separate 里面 ，两个 while 之间控制一下

我是放在之间的，可能 放在 第二个 while 里面会比较好

现在的条件判定的 还不是 很好

测试这个程序，有一个法子就是，你先 combine ，用combine的再去 separate

#include <stdio.h>
#include <string.h>
#include <stdio.h>
#include <io.h>

unsigned char mark[16];
unsigned char mark2[10];

unsigned int notend(unsigned char* rbuf)
{
int i;
// i 0 ---- 7

mark2[0] = 0x80;
mark2[1] = 0x80;

memset(mark2 + 2, 0xff, 8);

for (i = 0; i < 7; i++)
{
if (memcmp(rbuf++, mark2, 10) == 0)
return i + 10;
}

return 16;
}

void combine(int n, char **fn)
{
int i, rnum;

unsigned char wbuf[16];

FILE* out = fopen(fn[n + 1], "wb+");

for (i = 1; i <= n; i++)
{
FILE* in = fopen(fn[i], "rb+");

while (!feof(in))
{
memset(wbuf, 0xff, 16);
rnum = fread(wbuf, 1, 16, in);

if (rnum != 0)
fwrite(wbuf, 1, 16, out);
}

fclose(in);
fwrite(mark, 1, 16, out);
}

fclose(out);
}

void separate(char *fn)
{
int i = 0, rnum, wnum;

// less than 10 files, filename is less than 30 characters
char e80[10][30] = {"001.e80", "002.e80",
"003.e80", "004.e80",
"005.e80", "006.e80",
"007.e80", "008.e80",
"009.e80", "010.e80"};

unsigned char rbuf[16];

FILE* in = fopen(fn, "rb+");

while ( (i < 10) && (!feof(in)) )
{
FILE* out;

rnum = fread(rbuf, 1, 16, in);
if (rnum > 0)
out = fopen(e80[i++], "wb+");

while (!feof(in))
{
if (memcmp(rbuf, mark, 16) != 0)
{
wnum = notend(rbuf);
fwrite(rbuf, 1, wnum, out);
fread(rbuf, 1, 16, in);
}
else
break;
}
fclose(out);
}

fclose(in);
}


int main(int argc, char* argv[])
{
memset(mark, 0xff, 16);

if (argc == 1)
{
printf("Usage: cmd filename[filename......]\n");
return 1;
}
else if (argc == 2)
{
puts("separate .e80 from .bin\n");
separate(argv[1]);
return 0;
}
else
{
puts("combine .e80 to .bin\n");
combine(argc - 2, argv);
return 0;
}
}

[poemlake]

明天你帮我改好啊，我对C一点也不懂啊，谢谢了，我有事先出去了，明天晚上能回来。

[poemlake]

我现在结贴了，你要帮我改一下然后直接回贴就行了，谢谢了。我真的一点不懂C语言。

[njuhuangmy]

我一共做两种修改，你看看那一种对你的程序比较适用

#include <stdio.h>
#include <string.h>
#include <stdio.h>
#include <io.h>

unsigned char mark[16];
unsigned char mark2[10];

unsigned int notend(unsigned char* rbuf)
{
int i;
// i 0 ---- 7

mark2[0] = 0x80;
mark2[1] = 0x80;

memset(mark2 + 2, 0xff, 8);

for (i = 0; i < 7; i++)
{
if (memcmp(rbuf++, mark2, 10) == 0)
return i + 10;
}

return 16;
}

void combine(int n, char **fn)
{
int i, rnum;

unsigned char wbuf[16];

FILE* out = fopen(fn[n + 1], "wb+");

for (i = 1; i <= n; i++)
{
FILE* in = fopen(fn[i], "rb+");

while (!feof(in))
{
memset(wbuf, 0xff, 16);
rnum = fread(wbuf, 1, 16, in);

if (rnum != 0)
fwrite(wbuf, 1, 16, out);
}

fclose(in);
fwrite(mark, 1, 16, out);
}

fclose(out);
}

void separate(char *fn)
{
int i = 0, rnum, wnum;

// less than 10 files, filename is less than 30 characters
char e80[10][30] = {"001.e80", "002.e80",
"003.e80", "004.e80",
"005.e80", "006.e80",
"007.e80", "008.e80",
"009.e80", "010.e80"};

unsigned char rbuf[16];

FILE* in = fopen(fn, "rb+");

while ( (i < 10) && (!feof(in)) )
{
FILE* out;

rnum = fread(rbuf, 1, 16, in);
if ((rnum > 0) && (memcmp(rbuf, mark, 16) != 0))
/*上面这一行被修改了*/
out = fopen(e80[i++], "wb+");

while (!feof(in))
{
if (memcmp(rbuf, mark, 16) != 0)
{
wnum = notend(rbuf);
fwrite(rbuf, 1, wnum, out);
fread(rbuf, 1, 16, in);
}
else
break;
}
fclose(out);
}

fclose(in);
}


int main(int argc, char* argv[])
{
memset(mark, 0xff, 16);

if (argc == 1)
{
printf("Usage: cmd filename[filename......]\n");
return 1;
}
else if (argc == 2)
{
puts("separate .e80 from .bin\n");
separate(argv[1]);
return 0;
}
else
{
puts("combine .e80 to .bin\n");
combine(argc - 2, argv);
return 0;
}
}

[njuhuangmy]

我认为这一个可能对你的程序比较管用，先try这个吧！
#include <stdio.h>
#include <string.h>
#include <stdio.h>
#include <io.h>

unsigned char mark[16];
unsigned char mark2[10];

unsigned int notend(unsigned char* rbuf)
{
int i;
// i 0 ---- 7

mark2[0] = 0x80;
mark2[1] = 0x80;

memset(mark2 + 2, 0xff, 8);

for (i = 0; i < 7; i++)
{
if (memcmp(rbuf++, mark2, 10) == 0)
return i + 10;
}

return 16;
}

void combine(int n, char **fn)
{
int i, rnum;

unsigned char wbuf[16];

FILE* out = fopen(fn[n + 1], "wb+");

for (i = 1; i <= n; i++)
{
FILE* in = fopen(fn[i], "rb+");

while (!feof(in))
{
memset(wbuf, 0xff, 16);
rnum = fread(wbuf, 1, 16, in);

if (rnum != 0)
fwrite(wbuf, 1, 16, out);
}

fclose(in);
fwrite(mark, 1, 16, out);
}

fclose(out);
}

void separate(char *fn)
{
int i = 0, rnum, wnum;

// less than 10 files, filename is less than 30 characters
char e80[10][30] = {"001.e80", "002.e80",
"003.e80", "004.e80",
"005.e80", "006.e80",
"007.e80", "008.e80",
"009.e80", "010.e80"};

unsigned char rbuf[16];

FILE* in = fopen(fn, "rb+");

while ( (i < 10) && (!feof(in)) )
{
FILE* out;

rnum = fread(rbuf, 1, 16, in);
while (memcmp(rbuf, mark, 16) == 0)
rnum = fread(rbuf, 1, 16, in);

if (rnum > 0)
out = fopen(e80[i++], "wb+");

while (!feof(in))
{
if (memcmp(rbuf, mark, 16) != 0)
{
wnum = notend(rbuf);
fwrite(rbuf, 1, wnum, out);
fread(rbuf, 1, 16, in);
}
else
break;
}
fclose(out);
}

fclose(in);
}


int main(int argc, char* argv[])
{
memset(mark, 0xff, 16);

if (argc == 1)
{
printf("Usage: cmd filename[filename......]\n");
return 1;
}
else if (argc == 2)
{
puts("separate .e80 from .bin\n");
separate(argv[1]);
return 0;
}
else
{
puts("combine .e80 to .bin\n");
combine(argc - 2, argv);
return 0;
}
}