我正在尝试从一系列值中选择一个随机值并将该值输出到单元格 E6 中。
有些单元格是空白的，所以我需要从一个包含值的单元格中选择。
可供选择的值的范围是 H127:1127。
Sub Generate()
Dim i As Double
Dim ws As Worksheet
Set ws = Sheets("Upstream-Overall")
For Each Cell In ws.Range("H127:H1127")
If ActiveCell.Value <> "" Then
Range("E6") = Random_Number = Application.WorksheetFunction.RandBetween(0.1, 5)
End If
Next Cell
End Sub
【问题讨论】：
Sub Generate()
Const wsName As String = "Upstream-Overall"
Const sRangeAddress As String = "H127:H1127"
Const dCellAddress As String = "E6"
' Reference the worksheet in the workbook containing this code.
Dim ws As Worksheet: Set ws = ThisWorkbook.Worksheets(wsName)
' Write the values from the first column of the range to an array.
Dim Data As Variant: Data = ws.Range(sRangeAddress).Columns(1).Value
Dim sr As Long, dr As Long
' Shift the numeric values (up) to the beginning of the array.
For sr = 1 To UBound(Data, 1)
If VarType(Data(sr, 1)) = 5 Then ' is a number
dr = dr + 1
Data(dr, 1) = Data(sr, 1)
'Else ' is not a number; do nothing
End If
Next sr
' Check if at least one number was found.
If dr = 0 Then
MsgBox "No numbers in the first column of the range.", vbCritical
Exit Sub
End If
' Write the number from a random element
' of the numeric part of the array to the cell.
ws.Range(dCellAddress).Value = Data(Int(dr * Rnd + 1), 1)
' Inform of success.
MsgBox "New random number generated.", vbInformation
End Sub
【讨论】：
你可以这样做：
Sub Generate()
Dim ws As Worksheet, rng As Range, i As Long, v
Set ws = Sheets("Upstream-Overall")
Set rng = ws.Range("H127:H1127")
Do
i = Application.RandBetween(1, rng.Cells.Count)
v = rng.Cells(i).Value
Loop While Len(v) = 0 'loop until selected cell has a value
ws.Range("E6").Value = v
End Sub
（假设范围永远不会完全为空）
【讨论】：