266期：<<01/02/03/06/08/10/12/14/20/27/34/41/42/43/44/49>>开：41对
267期：<<01/04/10/13/14/18/22/23/24/27/29/32/40/42/43/48>>开：29对
268期：<<05/09/12/14/15/17/18/22/25/27/28/35/36/45/47/49>>开：10错
269期：<<01/04/05/07/12/13/15/19/22/23/25/29/37/38/39/48>>开：31错
270期：<<01/03/05/09/10/12/16/23/25/26/29/30/33/38/43/48>>开：//