如何按对象属性vbscript对字典进行排序

Question

我正在尝试使用我在网上找到的对象属性（即 Id）函数对字典进行排序，但在这一行For Each i In dict我收到此错误消息 Microsoft VBScript 运行时错误：对象不支持此属性或方法。我已经尝试过，For Each i In dict.Items但我收到与“dict.Items”相同的错误消息我使用的是旧版本的 VBScript，因此它不具有以下功能dict.Count

VBScript 类：

Class TestClass
    Public ID
    Public TestText
    Private Sub Class_Initialize
            TestText  = ""
    End Sub
End Class

Set gDic = CreateObject("Scripting.Dictionary")


For i = 1 to 5
    Set temp = new TestClass
    temp.ID = i
    temp.TestText = "Test" & i

    gDic.Add i,temp
Next


Set NewDic = SortDict(gDic)
msgbox NewDic.Items()(1).TestText

排序功能：

Function SortDict(ByVal dict)
    Dim i, j, temp
    For Each i In dict
        For Each j In dict
            If(dict.Item(i) <= dict.Item(j)) Then
                temp = dict.Item(i)
                dict.Item(i) = dict.Item(j)
                dict.Item(j) = temp
            End If
        Next
    Next
    Set SortDict = dict
End Function

Answer 1

尝试将您的函数修改为：

Function SortDict(dict)
    Dim i, j, arrKeys, arrItems
    arrKeys = dict.keys                                               'Array containing the keys
    arrItems = dict.Items                                             'Array containing the Items(which are nothing but objects of class TestClass)
    Set tempObj = New TestClass
    For i=0 To UBound(arrItems)-1                                     'From 1st element to the penultimate element
        For j=i+1 To UBound(arrItems)                                 'From i+1th element to last element
            If arrItems(i).id < arrItems(j).id Then                  'Sorting in DESCENDING ORDER by the Property "ID"
                tempObj.ID = arrItems(i).ID
                tempObj.TestText = arrItems(i).testText
                dict.item(arrKeys(i)).ID = arrItems(j).ID
                dict.item(arrKeys(i)).TestText = arrItems(j).TestText
                dict.item(arrKeys(j)).ID = tempObj.ID
                dict.item(arrKeys(j)).TestText = tempObj.TestText
            End If
        Next
    Next
    Set SortDict = dict
End Function

排序前：

|Key             |Value                |
|----------------|---------------------|
|1               |1,Test1              |
|2               |2,Test2              |
|3               |3,Test3              |
|4               |4,Test4              |
|5               |5,Test5              |

排序后：

|Key             |Value                |
|----------------|---------------------|
|1               |5,Test5              |
|2               |4,Test4              |
|3               |3,Test3              |
|4               |2,Test2              |
|5               |1,Test1              |

我找不到更好的方法来交换值。我确信有更好的方法可以做到这一点。一旦我得到东西就会更新它。