278期：五不中{47,46,15,30,10}开06 40 24 29 44 01 = 02 准
279期：五不中{49,09,17,19,20}开29 32 47 38 06 26 = 10 准
280期：五不中{32,14,39,47,16}开01 26 28 29 03 05 = 15 准
281期：五不中{14,20,27,38,37}开22 19 21 32 48 38 = 10 错
282期：五不中{27,38,31,36,26}开准