297期：黑牛<<03,04,08,10,13,15,16,17,19,26,28,29,30,31,32,34,35,36,38,40,41,44,45,49>>开：44有
298期：黑牛<<01,05,06,08,13,16,17,18,20,21,22,26,29,30,32,35,38,40,41,42,43,44,47,49>>开：23没
299期：黑牛<<05,06,07,08,10,13,14,19,21,22,23,24,25,26,27,28,29,30,33,40,41,44,48,49>>开：49有
300期：黑牛<<02,04,06,07,09,13,15,18,22,23,24,25,26,28,29,31,32,35,36,38,39,42,45,47>>开：00