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chip Guest
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Posted: Thu Apr 01, 2004 5:53 pm Post subject: Prepisovani, dopisovani do souboru |
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Mel bych dotaz,
1. jak provest prepsani existujiciho souboru
2. a jak pripisovat text k jiz vytvorenemu souboru
zkousel jsem
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mc_set_type (b, t_ext_txt);
fd = mc_open (b, FILE_APPEND);
mc_append (fd,"ahoj", 4);
mc_close (fd);
...
bohuzel umi vytvorit pouze novy soubor treba i se stejnym jmenem a nevim jak jak se tohoto zbavit.
Predem dik za odpovedi |
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pz Guest
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Posted: Fri Apr 02, 2004 6:15 am Post subject: |
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Zkuzte nejdriv nalezt existujici soubor pomoci mc_find.
Pr.
u8 PROGMEM t_nazev_meho_souboru[]="muj soubor";
b32 b=mc_find(0, t_nazev_meho_souboru, FS_FIND_STRING);
if(b<0)
{
//neexistuje
}
else
{
//existuje
MCFILE *fd=mc_open(b, FILE_APPEND); // pripsani na konec nebo MC_REWRITE pro prepsani lib. existujici pozice
...
}
pro vymazani obsahu souboru pouzijte mc_clear(b)
P. |
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