/*------------------------------------------------------------/
/?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
-----------?---------??----------?-----??----

?????文件???????8704??2020-09-21?13:08??fatfs\doc\00index_e.html

?????文件??????10059??2020-09-21?13:08??fatfs\doc\00index_j.html

?????文件???????3481??2020-09-21?13:08??fatfs\doc\css_e.css

?????文件???????3896??2020-09-21?13:08??fatfs\doc\css_j.css

?????文件??????34978??2020-09-21?13:08??fatfs\doc\en\appnote.html

?????文件???????2517??2020-09-21?13:08??fatfs\doc\en\chdir.html

?????文件???????1796??2020-09-21?13:08??fatfs\doc\en\chdrive.html

?????文件???????2951??2020-09-21?13:08??fatfs\doc\en\chmod.html

?????文件???????2168??2020-09-21?13:08??fatfs\doc\en\close.html

?????文件???????1965??2020-09-21?13:08??fatfs\doc\en\closedir.html

?????文件??????14194??2020-09-21?13:08??fatfs\doc\en\config.html

?????文件???????1810??2020-09-21?13:08??fatfs\doc\en\dinit.html

?????文件???????7465??2020-09-21?13:08??fatfs\doc\en\dioctl.html

?????文件???????3503??2020-09-21?13:08??fatfs\doc\en\dread.html

?????文件???????2266??2020-09-21?13:08??fatfs\doc\en\dstat.html

?????文件???????3357??2020-09-21?13:08??fatfs\doc\en\dwrite.html

?????文件???????1711??2020-09-21?13:08??fatfs\doc\en\eof.html

?????文件???????1600??2020-09-21?13:08??fatfs\doc\en\error.html

?????文件???????5068??2020-09-21?13:08??fatfs\doc\en\expand.html

?????文件???????1658??2020-09-21?13:08??fatfs\doc\en\fattime.html

?????文件???????4262??2020-09-21?13:08??fatfs\doc\en\fdisk.html

?????文件???????9448??2020-09-21?13:08??fatfs\doc\en\filename.html

?????文件???????5254??2020-09-21?13:08??fatfs\doc\en\findfirst.html

?????文件???????2470??2020-09-21?13:08??fatfs\doc\en\findnext.html

?????文件???????5427??2020-09-21?13:08??fatfs\doc\en\forward.html

?????文件???????2305??2020-09-21?13:08??fatfs\doc\en\getcwd.html

?????文件???????3410??2020-09-21?13:08??fatfs\doc\en\getfree.html

?????文件???????2687??2020-09-21?13:08??fatfs\doc\en\getlabel.html

?????文件???????2811??2020-09-21?13:08??fatfs\doc\en\gets.html

?????文件???????6892??2020-09-21?13:08??fatfs\doc\en\lseek.html

............此處省略121個文件信息