1x2+2x3+3x4+·······+101x101=什么
问题描述：
1x2+2x3+3x4+·······+101x101=什么
答
应该是：“1x2+2x3+3x4+·······+100x101”吧?Dim i As Long, Isum As Long Isum = 0 For i = 1 To 100Isum = Isum + i * (i + 1) Next i Debug.Print Isum运行结果：Isum= 343400...