如何让{if $myfile.filename=="1"}的判断条件等于1至100的任意数

{module module=MOD_DIR catid=21 order=updatetime num=1 return=t} 

   <?php $t['tuchuang'] = array_slice($t['tuchuang'], 0, 8);?>

   <?php if ($t['tuchuang']) { $key=0; foreach ($t['tuchuang'] as $c) { ?> 

   {php $myfile=\Phpcmf\Service::C()->get_attachment($c);}                   

<img class='am05 bai100' src='{dr_get_file($c)}'/>

<p>{if $myfile.filename=="1"}{$t.title}{else}{$myfile.filename}{/if}</p>

 <?php $key++;} } ?>

{/module}

如何让{if $myfile.filename=="1"}的判断条件等于1至100的任意数组，