记不住就去死吧！！

FILE *fopen(    const char *filename,   const char *mode );size_t fread(    void *buffer,//Storage location for data.   size_t size,//Item size in bytes.   size_t count,//Maximum number of items to be read.   FILE *stream //Pointer to FILE structure.); size_t fwrite(   const void *buffer,   size_t size,   size_t count,   FILE *stream ); int fclose(    FILE *stream );

void *memcpy(   void *dest,   const void *src,   size_t count );void *memset(   void *dest,   int c,   size_t count );