dedecms织梦怎么用runphp='yes'运行php

{wmd:arclist row=14 titlelen=32 noflag='h'}
<li><a href="[field:arcurl/]">[field:title/]</a>
[field:id runphp='yes']
if(@me==5){
    @me='选中';
}else{
    @me='没选中';
}
[/field:id]
</li>
{/wmd:arclist}

global $dsql;
$a="SELECT game.assprice,game.msg,game.bigpic,game.model,game.sptype,gameetime,game.brand
FROM wmd_addongame_tg as game where game.aid=@me";
$dsql->Execute()

{wmd:field.description runphp='yes'}
if (@me <> '') {
　　@me = '<div>'.@me.'</div>';
} else {
　　@me = '';
}
{/wmd:field.audio}

{wmd:arclist row='10'}
    [field:array runphp='yes']
        if (@me['shorttitle'] == '') {
            @me = @me['title'];
        } else {
            @me = @me['shorttitle'];
        }
    [/field:array]
{/wmd:arclist}