题
在之前已被问到这个问题,但我找不到答案很容易适用于ExcelVBA。
基本上我想做什么是这张海报已经问过的,但在VBA。我想创建一个数组,n x 2 ^ n,其中每行代表n个变量的不同排列,可以是0或1。
我已经播放了这一段时间,很容易为带有负载循环的组,但是对于变量n,我找不到任何有效的东西。
任何代码或只是对此的方式的建议将非常感谢!
解决方案
这将列出列中的值 a
Sub EasyAsCounting()
Dim N As Long, M As Long, K As Long
N = Application.InputBox(Prompt:="Enter N", Type:=1)
M = 2 ^ N - 1
For K = 0 To M
Cells(K + 1, 1) = "'" & Application.WorksheetFunction.Dec2Bin(K, N)
Next K
End Sub
.
编辑#1
这将在 vba 中存储阵列:
Sub EasyAsCounting()
Dim N As Long, M As Long, K As Long, ary, s As String
Dim J As Long
N = Application.InputBox(Prompt:="Enter N", Type:=1)
M = 2 ^ N - 1
ReDim ary(1 To M + 1, 1 To N)
For K = 0 To M
s = Application.WorksheetFunction.Dec2Bin(K, N)
For J = 1 To N
ary(K + 1, J) = Mid(s, J, 1)
Next J
Next K
'
'display the array
'
msg = ""
For K = 1 To M + 1
For J = 1 To N
msg = msg & " " & ary(K, J)
Next J
msg = msg & vbCrLf
Next K
MsgBox msg
End Sub
. 其他提示
如果您不在Excel中,请不要访问功能。或者如果您的数字大于511。
Sub MakePerms()
Dim i As Long, j As Long
Dim n As Long
Dim aPerms() As Byte
Dim lCnt As Long
Dim sOutput As String
Const lVar As Long = 4
ReDim aPerms(1 To 2 ^ lVar, 1 To lVar)
For i = 0 To UBound(aPerms, 1) - 1
n = i
lCnt = lVar
aPerms(i + 1, lCnt) = CByte(n Mod 2)
n = n \ 2
Do While n > 0
lCnt = lCnt - 1
aPerms(i + 1, lCnt) = CByte(n Mod 2)
n = n \ 2
Loop
Next i
For i = LBound(aPerms, 1) To UBound(aPerms, 1)
sOutput = vbNullString
For j = LBound(aPerms, 2) To UBound(aPerms, 2)
sOutput = sOutput & Space(1) & aPerms(i, j)
Next j
Debug.Print sOutput
Next i
End Sub
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