vba dictionary排序
时间: 2023-11-09 09:45:35 浏览: 187
vba 表名排序
在 VBA 中,Dictionary 对象是无序的,它会根据键的哈希值进行存储和访问。因此,它没有内置的排序功能。但你可以通过一些额外的步骤来实现对 Dictionary 对象的排序。
一种常见的方法是将 Dictionary 对象中的键和值复制到一个数组中,然后对数组进行排序。下面是一个示例代码:
```vba
Sub SortDictionary()
Dim dict As Object
Set dict = CreateObject("Scripting.Dictionary")
' 添加键值对到 Dictionary 对象
dict.Add "C", "C语言"
dict.Add "A", "ASP.NET"
dict.Add "B", "Basic"
' 将键和值复制到数组
Dim keys() As Variant
Dim values() As Variant
Dim i As Integer
ReDim keys(0 To dict.Count - 1)
ReDim values(0 To dict.Count - 1)
i = 0
For Each key In dict.keys
keys(i) = key
values(i) = dict(key)
i = i + 1
Next key
' 对键数组进行排序
Call QuickSort(keys, LBound(keys), UBound(keys))
' 输出排序后的结果
For i = LBound(keys) To UBound(keys)
Debug.Print keys(i) & ": " & values(Application.Match(keys(i), keys, 0) - 1)
Next i
End Sub
Sub QuickSort(arr() As Variant, low As Long, high As Long)
Dim pivot As Variant
Dim i As Long
Dim j As Long
Dim temp As Variant
If low < high Then
pivot = arr(low)
i = low
j = high
Do While i < j
Do While arr(j) >= pivot And i < j
j = j - 1
Loop
Do While arr(i) < pivot And i < j
i = i + 1
Loop
If i < j Then
temp = arr(i)
arr(i) = arr(j)
arr(j) = temp
End If
Loop
temp = arr(low)
arr(low) = arr(i)
arr(i) = temp
Call QuickSort(arr, low, i - 1)
Call QuickSort(arr, i + 1, high)
End If
End Sub
```
在上面的示例代码中,我们首先创建了一个 Dictionary 对象,并向其中添加了三个键值对。然后,我们将键和值复制到数组中,并使用快速排序算法对键数组进行排序。最后,我们遍历排序后的键数组,并根据键获取对应的值。
请注意,上述示例代码仅针对键进行排序,如果你希望同时对键和值进行排序,可以使用类似的方法进行修改。
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