!! +exec+ +ins+
$lst_tit insdraw$lst_titend$type_pexec
  $lst_alias inspaint
  $(lst_syntax)insdraw $emph drawsource $emphend</tt>
  $lst_mean 服务器将调用画图程序($emph flydraw$emphend), 把 $emph drawsource$emphend
  (经过变量替换后)作为命令, 把结果插入网页. <br/>

