垂形的。可以去看看这款哦http://auction1.taobao.com/auction/17-1705/item_detail-0db2-26fc52528cc84bdb0151aadbe22df5c5.jhtml或者http://auction1.taobao.com/auction/17-1705/item_detail-0db2-3f522b2399d445881306663323b59426.jhtml