<{foreach key=g_key item=g_class_id from= $data.g_class_list }>
<{foreach key=c_key item=class_id from= $g_class_id }>
<{if ($data.class_set[$c_key])}>
<{$data.class_list_c[$c_key]}>_<{ $data.class_teach[$c_key]}>
<{else}>
<{$data.class_list_c[$c_key]}>
<{/if}>
<{/foreach }>