大家好，偷看，
我对 VB 非常陌生，我一直在使用一些网络代码来尝试创建一些非常简单的东西。我正在尝试让 excel 计算两个具有日期值的单元格之间的周数。第一个单元格位于固定位置，第二个单元格是该列使用范围内的最后一个单元格。
Last是我从网上摘下来的一个功能。我根本无法让它工作，任何帮助将不胜感激。
Sub test_date_calc()
Dim LastCell As String
Dim nwks As Integer
Dim rng As Range
Set rng = Sheets("data13").UsedRange
LastCell = Last(3, rng)
nwks = (Cells(3, 2) - LastCell.Value) / 7
If nwks > 13 Then
MsgBox "greater"
Else
MsgBox "Less"
End If
End Sub
下面的Last功能，这可能会有所帮助
Function Last(choice As Long, rng As Range)
'Ron de Bruin, 5 May 2008
' 1 = last row
' 2 = last column
' 3 = last cell
Dim lrw As Long
Dim lcol As Long
Select Case choice
Case 1:
On Error Resume Next
Last = rng.Find(What:="*", _
After:=rng.Cells(1), _
Lookat:=xlPart, _
LookIn:=xlFormulas, _
SearchOrder:=xlByRows, _
SearchDirection:=xlPrevious, _
MatchCase:=False).Row
On Error GoTo 0
Case 2:
On Error Resume Next
Last = rng.Find(What:="*", _
After:=rng.Cells(1), _
Lookat:=xlPart, _
LookIn:=xlFormulas, _
SearchOrder:=xlByColumns, _
SearchDirection:=xlPrevious, _
MatchCase:=False).Column
On Error GoTo 0
Case 3:
On Error Resume Next
lrw = rng.Find(What:="*", _
After:=rng.Cells(1), _
Lookat:=xlPart, _
LookIn:=xlFormulas, _
SearchOrder:=xlByRows, _
SearchDirection:=xlPrevious, _
MatchCase:=False).Row
On Error GoTo 0
On Error Resume Next
lcol = rng.Find(What:="*", _
After:=rng.Cells(1), _
Lookat:=xlPart, _
LookIn:=xlFormulas, _
SearchOrder:=xlByColumns, _
SearchDirection:=xlPrevious, _
MatchCase:=False).Column
On Error GoTo 0
On Error Resume Next
Last = rng.Parent.Cells(lrw, lcol).Address(False, False)
If Err.Number > 0 Then
Last = rng.Cells(1).Address(False, False)
Err.Clear
End If
On Error GoTo 0
End Select
End Function