280期：⑤不中{23,36,40,21,47}开01 26 28 29 03 05 = 15 <对>
281期：⑤不中{43,34,13,26,01}开22 19 21 32 48 38 = 10 <对>
282期：⑤不中{44,13,18,04,27}开44 03 37 46 29 20 = 23 <错>)
283期：⑤不中{13,09,31,41,05}开35 08 15 06 21 01 = 18 <对>
284期：⑤不中{36,17,38,49,37}开？<对>