271期：<<03,04,08,10,11,15,22,24,28,31,32,38,40,42,46,48>>开：22有
272期：<<03,04,06,08,11,13,25,28,30,32,34,37,40,42,45,49>>开：34有
273期：<<01,07,08,11,13,15,24,25,26,30,33,35,36,42,44,48>>开：42有
274期：<<01,06,10,12,13,18,19,25,26,27,33,35,36,38,40,41>>开：08无
275期：<<04,08,09,12,13,15,16,18,25,26,36,38,39,43,44,48>>开：24无
276期：<<01,03,08,10,12,16,19,20,24,32,34,35,37,39,45,46>>开：88