259期：<<02/03/04/06/18/19/21/22/23/26/27/28/29/35/43/44>>开：22对
260期：<<02/05/07/08/11/22/25/29/30/33/38/42/43/44/48/49>>开：20错
261期：<<03/08/11/12/13/15/19/20/23/36/38/39/40/43/45/49>>开：24错
262期：<<04/05/06/08/15/22/24/25/30/32/36/37/41/42/47/48>>开：30对
263期：<<02/05/06/07/08/17/22/23/28/31/34/35/38/42/46/48>>开：//