!! +var+ +exec+ +string+
$lst_tit item$lst_titend$type_both
  $lst_alias items
  $(lst_syntax)item $emph numlist$emphend of $emph string$emphend</tt>
  $lst_mean 根据 $emph numlist$emphend 选取 $emph string$emphend 中用逗号分隔的项. <p>
  !set numlist_type=项
  !read cmd/numlist
  

