fat

jhyanlin

 while(i<250)
 {
  i++;
  if(*fname=='\0')break;//偏移到了最后了.
  fname++;
 }
这是exfun.c的内容，我不明白这个地方的i为什么是小于250的


#define _MAX_LFN 255  /* Maximum LFN length to handle (12 to 255) */
/* The _USE_LFN option switches the LFN support.
/
/   0: Disable LFN feature. _MAX_LFN and _LFN_UNICODE have no effect.
/   1: Enable LFN with static working buffer on the BSS. Always NOT reentrant.
/   2: Enable LFN with dynamic working buffer on the STACK.
/   3: Enable LFN with dynamic working buffer on the HEAP.
/
/  The LFN working buffer occupies (_MAX_LFN + 1) * 2 bytes. To enable LFN,
/  Unicode handling functions ff_convert() and ff_wtoupper() must be added
/  to the project. When enable to use heap, memory control functions
/  ff_memalloc() and ff_memfree() must be added to the project. */

正常不应该是小于255吗，请原子哥解释一下哈，知道你很忙，呵呵，还有红色的哪句话跟我这个问题有关系吧？？，麻烦原子哥也帮忙说一下。

正点原子

我这里只是取250个而已,你可以改为255.
实际上,只有神经病才会去取这名长的名字.