<form action="<?php echo url('system', array('s'=>'soft', 'a'=>'search'));?>" method="get">
<input type="hidden" name="s" value="soft" />
<input type="hidden" name="a" value="search" />
<input type="hidden" name="sid" value="<?php echo $this->getOwner()->sid();?>" />
<input type="hidden" name="st" value="2" />
<input name='key' title='搜索内容' type='text' size='10' /><select name="class"><option value="1">名字</option><option value="2">介绍</option></select><input type="submit" value="搜索" />
</form>