vba - 创建生成唯一随机数的excel VBA宏

Question

我想创建一个宏，它基本上会根据用户输入返回随机数，但是，我希望每个输出都是唯一的(这就是 randbetween() 函数不适用于此的原因)。以下是我到目前为止的内容，但我不断收到引用错误。我从网上找到的几个不同示例中将这段代码拼接在一起，因此以任何方式进行优化也将不胜感激。

代码:

Sub RandomSample()
Dim cell As Range
Dim rng As Range
Low = 1
High = Application.InputBox("Enter population total", Type:=1)
Sample = Application.InputBox("Enter the Sample Size", Type:=8)
Set rng = Application.Range(ActiveCell, ActiveCell.Offset(Sample, 0))
For Each cell In rng.Cells
    If WorksheetFunction.CountA(Selection) = (High - Low + 1) Then Exit For
    Do
        rndNumber = Int((High - Low + 1) * Rnd() + Low)
    Loop Until Selection.Cells.Find(rndNumber, LookIn:=xlValues, lookat:=xlWhole) Is Nothing
    cell.Value = rndNumber
Next
End Sub

错误窗口:
Error image

Answer 1

尝试这个

Sub RandomSample()
    Dim cell As Range
    Dim Sample As Range  'declare Sample as Range
    Low = 1
    High = Application.InputBox("Enter population total", Type:=1)
    Set Sample = Application.InputBox("Enter the Sample Size", Type:=8)
    For Each cell In Sample   'use sample in loop
        If WorksheetFunction.CountA(Sample) = (High - Low + 1) Then Exit For
        Do
            rndnumber = Int((High - Low + 1) * Rnd() + Low)
        Loop Until Sample.Cells.Find(rndnumber, LookIn:=xlValues, lookat:=xlWhole) Is Nothing
        cell.Value = rndnumber
    Next
End Sub

编辑:

Sub RandomSample()
    Dim cell As Range
    Dim rng As Range
    Dim High As Long, Sample As Long
    Low = 1
    High = Application.InputBox("Enter population total", Type:=1)
    Sample = Application.InputBox("Enter the Sample Size", Type:=1)
    Set rng = Application.Range(ActiveCell, ActiveCell.Offset(Sample, 0))
    For Each cell In rng.Cells
        If WorksheetFunction.CountA(rng) = (High - Low + 1) Then Exit For
        Do
            rndNumber = Int((High - Low + 1) * Rnd() + Low)
        Loop Until rng.Cells.Find(rndNumber, LookIn:=xlValues, lookat:=xlWhole) Is Nothing
        cell.Value = rndNumber
    Next
End Sub