已知数字1,2,3,4,怎么用excel排列出所有组合

Question

如题所述

Answer 1

在Excel中排列数字1,2,3,4的所有组合，可以通过编写一个VBA宏来实现。首先打开Excel，按下Alt+F11进入VBA编辑器，插入一个新模块，然后输入以下代码：

Sub Permutations()

Dim arr() As Integer

Dim i As Integer

Dim j As Integer

Dim temp As Integer

Dim n As Integer

Dim count As Integer

Dim k As Integer

arr = Array(1, 2, 3, 4)

n = UBound(arr) - LBound(arr) + 1

For k = 1 To n

count = 0

Do

count = count + 1

For i = 1 To n

For j = i + 1 To n

If arr(i) > arr(j) Then

temp = arr(i)

arr(i) = arr(j)

arr(j) = temp

End If

Next j

Next i

Loop Until count = n

For i = 1 To n

Debug.Print arr(i)

Next i

End Sub

这段代码将生成所有可能的排列组合，并在立即窗口中显示。你可以通过更改数组中的数字来处理不同的集合。

此外，如果你需要将结果保存到文件，可以在代码中添加文件写入功能。例如，你可以使用以下代码将每个排列写入文本文件：

Sub PermutationsToFile()

Dim arr() As Integer

Dim i As Integer

Dim j As Integer

Dim temp As Integer

Dim n As Integer

Dim count As Integer

Dim k As Integer

Dim fp As Object

arr = Array(1, 2, 3, 4)

n = UBound(arr) - LBound(arr) + 1

Set fp = CreateObject("Scripting.FileSystemObject").CreateTextFile("C:\Permutations.txt", True)

For k = 1 To n

count = 0

Do

count = count + 1

For i = 1 To n

For j = i + 1 To n

If arr(i) > arr(j) Then

temp = arr(i)

arr(i) = arr(j)

arr(j) = temp

End If

Next j

Next i

fp.WriteLine Join(arr, "")

Loop Until count = n

fp.Close

End Sub

这样，排列组合的结果将被保存到指定的文本文件中。

通过这种方式，你可以轻松地在Excel中生成和保存数字1,2,3,4的所有排列组合。