按分类查找:
全部()
{query:name=favorite as f,category as c where=f.user_id eq $user_id and f.cat_id eq c.id fields=count(*) as num,c.name,c.id group=cat_id}
{set:$favoriteSum+=$item['num']}
{$item['name']}({$item['num']})
{/query}
{set:$user_id = $this->user['user_id']} {set:$favoriteSum = 0}