{dede:channel type="top" row=1}
[field:array runphp='yes']
global $dsql;
@me =@me['id'];
$sql = "select * from arctype where id=1"; /*顶级栏目id
$dsql->Execute('a',$sql);
$one = $dsql->GetArray('a');
@me =substr(Html2Text($one['content']),0,800);
[/field:array]...
{/dede:channel}
3.效果如下图所示: