283期━┳━半数粒中特━┳━《01,03,06,09,11,14,17,18,20,21,23,24,28,30,32,33,34,35,36,37,39,40,42,44,45,46,48,49》━┳━开：18准
284期━┳━半数粒中特━┳━《02,03,04,05,07,08,09,12,14,18,20,21,23,24,25,26,28,29,30,31,32,35,37,38,39,42,44,47》━┳━开：20准
285期━┳━半数粒中特━┳━《03,04,05,06,08,11,14,15,16,17,18,20,22,23,24,25,27,29,30,31,32,37,39,42,44,47,48,49》━┳━开：06准
286期━┳━半数粒中特━┳━《02,03,05,07,08,09,10,12,15,16,18,19,21,22,23,24,25,27,28,29,33,34,37,42,43,46,47,48》━┳━开：48准
287期━┳━半数粒中特━┳━《01,03,07,08,09,11,12,14,15,16,17,18,21,22,24,25,27,30,33,34,37,41,42,43,45,46,47,48》━┳━开：04错
288期━┳━半数粒中特━┳━《02,04,05,06,09,11,14,15,16,18,19,21,24,26,27,28,29,30,31,33,34,35,37,40,42,43,46,47》━┳━开：01错
289期━┳━半数粒中特━┳━《03,07,08,09,11,12,13,14,15,16,19,22,23,24,25,26,28,32,34,35,37,38,39,40,45,46,47,48》━┳━开：24准
290期━┳━半数粒中特━┳━《02,03,08,09,12,13,14,15,17,18,19,20,21,23,24,27,29,32,33,34,36,37,39,41,44,45,46,49》━┳━开：34准
291期━┳━半数粒中特━┳━《01,03,04,05,08,09,10,11,13,14,16,18,19,20,21,22,23,24,25,28,29,30,41,43,44,45,47,48》━┳━开：？？？