http://m.22321a.com/doc/label/all/521.html
描述：指定欄目搜索
{eyou:searchform type='sonself' typeid='2'}
<form class="sidebar-search" method="get" action="{$field.action}">
<input type="text" class="form-control" name="keywords" placeholder="請輸入關(guān)鍵詞" />
<input type="submit" name="btn" value="搜索" />
{$field.hidden}
</form>
{/eyou:searchform}
大佬給的教程，感謝?。。?/p>