{dede:name runphp='yes'}
    $str = "hello";
    @me = $str;
    @me .= "world" 
{/dede:name}

{dede:include runphp='yes' source='value' file=''/}

{dede:field runphp='yes'}
$aaa=200;
$DedeMeValue=100;
$DedeMeValue += $aaa;
{/dede:field}

{dede:field runphp='yes'}
$aaa = 200;
@me=100;
@me += $aaa;;
{/dede:field}

[field:id runphp="yes"]
$dsql = new DedeSql(false);
$a="select a.address FROM xudaoshan_addonarticle as a where a.aid=@me";
$arcRow = $dsql->GetOne($a);
@me=''.$arcRow[address].'';
[/field:id]
{/dede:list}