分类求和

就是找到不重复值，并对相同名下的值进行累加：

 1 Sub 分类求和()
 2 Dim arry(1 To 9, 1 To 2)
 3 Set Rng = Cells(Rows.Count, 3).End(xlUp)
 4 ''k = Cells.Row
 5 'Rng.Select
 6 arr = Range([b2], Rng)
 7 For i = 1 To Rng.Row - 1
 8     For j = 1 To UBound(arry, 1)
 9         If arr(i, 1) = arry(j, 1) Then
10             arry(j, 2) = arry(j, 2) + arr(i, 2)
11             GoTo 100:
12         End If
13     Next j
14     k = k + 1
15     arry(k, 1) = arr(i, 1)
16     arry(k, 2) = arr(i, 2)
17 100:
18 Next i
19 [i2].Resize(k, 2) = arry
20 End Sub