如何在另一个单元格中将一个单元格值重复X次？

Question

I have a sheet like this

How can I loop on column A based on column B and create comma separated entries ending with -0 , -1 .... in column C ?

Answer 1

Use a UDF.

Press Alt + F11 then right click in the Project column. Insert a new module and paste the code in module1.

Public Function textMul(ByVal target As String, ByVal n As Long) As String
    Dim tmpStr As String
    Dim i As Long
    For i = 1 To n
        If tmpStr <> "" Then tmpStr = tmpStr & ", "
        tmpStr = tmpStr & target & "-" & i - 1
    Next i
    textMul = tmpStr
End Function

Then back to your worksheet, typing textmul(A2,B2) generates the result.