/*------------------------------------------------------------/
/?Open?or?create?a?file?in?append?mode
/------------------------------------------------------------*/

FRESULT?open_append?（
????FIL*?fp????????????/*?[OUT]?File?object?to?create?*/
????const?char*?path????/*?[IN]??File?name?to?be?opened?*/
）
{
????FRESULT?fr;

????/*?Opens?an?existing?file.?If?not?exist?creates?a?new?file.?*/
????fr?=?f_open（fp?path?FA_WRITE?|?FA_OPEN_ALWAYS）;
????if?（fr?==?FR_OK）?{
????????/*?Seek?to?end?of?the?file?to?append?data?*/
????????fr?=?f_lseek（fp?f_size（fp））;
????????if?（fr?!=?FR_OK）
????????????f_close（fp）;
????}
????return?fr;
}


int?main?（void）
{
????FRESULT?fr;
????FATFS?fs;
????FIL?fil;

????/*?Open?or?create?a?log?file?and?ready?to?append?*/
????f_mount（&fs?““?0）;
????fr?=?open_append（&fil?“logfile.txt“）;
????if?（fr?!=?FR_OK）?return?1;

????/*?Append?a?line?*/
????f_printf（&fil?“%02u/%02u/%u?%2u:%02u\n“?Mday?Mon?Year?Hour?Min）;

????/*?Close?the?file?*/
????f_close（&fil）;

????return?0;
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-08-25?23:50??STM32F4+USB?bulk???FS?2016.12.16\
?????目錄???????????0??2017-08-25?23:50??STM32F4+USB?bulk???FS?2016.12.16\Crack\
?????文件?????4516576??2017-04-10?15:09??STM32F4+USB?bulk???FS?2016.12.16\Crack\USBTrace.exe
?????文件??????????73??2012-06-07?17:17??STM32F4+USB?bulk???FS?2016.12.16\Crack\utlicense.dat
?????目錄???????????0??2017-08-25?23:50??STM32F4+USB?bulk???FS?2016.12.16\fat\
?????目錄???????????0??2017-08-25?23:50??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\
?????文件????????5950??2013-01-24?00:06??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\00index_e.html
?????文件????????5940??2013-01-24?00:06??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\00index_j.html
?????文件????????3152??2013-01-27?02:23??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\css_e.css
?????文件????????3477??2013-01-27?02:23??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\css_j.css
?????文件?????????125??2014-05-19?00:56??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\css_p.css
?????目錄???????????0??2017-08-25?23:50??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\en\
?????文件???????26796??2013-01-24?01:31??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\en\appnote.html
?????文件????????2518??2013-01-27?01:04??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\en\chdir.html
?????文件????????1760??2013-01-27?01:18??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\en\chdrive.html
?????文件????????2922??2013-01-27?01:17??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\en\chmod.html
?????文件????????1987??2013-01-27?01:17??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\en\close.html
?????文件????????1965??2014-06-15?23:20??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\en\closedir.html
?????文件????????1784??2013-02-11?21:23??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\en\dinit.html
?????文件????????3721??2013-01-27?01:17??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\en\dioctl.html
?????文件????????3066??2013-01-27?01:17??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\en\dread.html
?????文件????????2125??2013-01-27?01:16??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\en\dstat.html
?????文件????????2526??2013-01-27?01:16??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\en\dwrite.html
?????文件????????1664??2013-01-27?01:18??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\en\eof.html
?????文件????????1565??2013-01-27?01:13??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\en\error.html
?????文件????????1538??2013-01-23?22:32??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\en\fattime.html
?????文件????????3777??2013-01-27?01:19??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\en\fdisk.html
?????文件????????6632??2013-01-24?02:08??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\en\filename.html
?????文件????????5476??2013-01-27?01:19??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\en\forward.html
?????文件????????2038??2013-01-27?01:18??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\en\getcwd.html
?????文件????????3261??2013-01-27?01:19??STM32F4+USB?bulk???FS?2016.12.16\fat\doc\en\getfree.html
............此處省略425個文件信息