Tue, Dec 11, 2007
彩票知识
是指号码中每个号码乘以它所在的位置数,然后把每个积相加就得到了位积和。例如:375的位积和是3*1+7*2+5*3=32
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12月 11th, 2007 at 5:43 上午
[...] 位积和定制过滤公式: r1*1+r2*2+r3*3+r4*4+r5*5 定制过滤, 彩票知识 [...]
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