Next i
ReDim arr(1 To m)
For j = 1 To m
For i = 3 To k
If Cells(i, 1) = arr1(j, 1) And Cells(i, 2) <> "" Then
x = x + 1
ReDim Preserve ar(1 To x)
ar(x) = Cells(i, 2)
End If
Next i
arr(j) = Join(ar, "、")
x = 0
Erase ar
Next j
这段代码什么意思?解释下哦,里面的I J代表哪一列?