不应该在多线程之间传递FILE指针

不然程序会发生错误,并定位到 __cdecl _lock_file (

void __cdecl _lock_file (
        FILE *pf
        )
{
        /*
         * The way the FILE (pointed to by pf) is locked depends on whether
         * it is part of _iob[] or not
         */
        if ( (pf >= _iob) && (pf <= (&_iob[_IOB_ENTRIES-1])) )
        {
            /*
             * FILE lies in _iob[] so the lock lies in _locktable[].
             */
            _lock( _STREAM_LOCKS + (int)(pf - _iob) );
            /* We set _IOLOCKED to indicate we locked the stream */
            pf->_flag |= _IOLOCKED;
        }
        else
            /*
             * Not part of _iob[]. Therefore, *pf is a _FILEX and the
             * lock field of the struct is an initialized critical
             * section.
             */
            EnterCriticalSection( &(((_FILEX *)pf)->lock) );
}

http://blog.csdn.net/leechiyang/article/details/6873952
这里有解决办法: http://kongchuipin.blog.163.com/blog/static/507395992011720480182/