smarty 二维数组的问题~

Question

{section name=customer loop=$custid}
id: {$custid[customer]}<br>
name: {$name[customer]}<br>
address: {$address[customer]}<br>
{section name=contact loop=$contact_type[customer]}
{$contact_type[customer][contact]}: {$contact_info[customer][contact]}<br>
{/section}
<p>
{/section}
{section name=customer loop=$contacts}
name: {$contacts[customer].name}<br>
home: {$contacts[customer].home}<br>
cell: {$contacts[customer].cell}<br>
e-mail: {$contacts[customer].email}<p>
{/section}