PHP程序里面

<?php $queryt1=urlencode('select sum(nse) as sumdata from dp_1_qiye_form_shuishou where cid=$t.id');?>

{sql sql='$queryt1' return=t2}

    {$t2.sumdata}

{/sql}

sum标签统计的没有带小数点，sql标签  where cid=$t.id  条件这个写法有错误，求指点