用vb编写程序：求a+aa+aaa+…+aaaa(n个)的和。如计算3+33+333+3333+33333的和。要完整代码，谢谢
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帮你用VB.NET写了个哈，，你自己用当n=4的时候，a=4的时候！测试结果为4936
Dim a, n, i As Integer Dim b, temp As String a = 4 n = 4 b = a.ToString() temp = a.ToString() Dim sum As Long
For i = 1 To n sum += a b &= temp a = CInt(b) Next
MsgBox(sum)
Dim a, n, i As Integer Dim b, temp As String a = 4 n = 4 b = a.ToString() temp = a.ToString() Dim sum As Long
For i = 1 To n sum += a b &= temp a = CInt(b) Next
MsgBox(sum)
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