Key 方法

在 Dictionary 对象中设置键。

语法

object.Key(key) = newkey

参数：

• Object：必需。始终为 Dictionary 对象的名称。

• Key：必需。要更改的键值。

• Newkey：必需。用于替换指定键的新值。

注释

如果更改键时未找到键，则创建新键，并将其关联项留空。

以下示例说明了 Key 属性的用法：

示例 1：

Function ChangeKey
    Dim d   ' Create some variables.
    Set d = CreateObject("Scripting.Dictionary")

    ' Add some keys and items.
    d.Add "a", "Athens"
    d.Add "b", "Belgrade"
    d.Add "c", "Cairo"

    ' Change the key "c" to "d"
    d.Key("c") = "d"

    ' Return the associated item for the new key "d"
    ChangeKey = d.Item("d")
End Function

' Usage
Dim result
result = ChangeKey()
' Output: Cairo

示例 2：

Function UpdateKeysAndDisplay
    Dim d, s   ' Create some variables.
    Set d = CreateObject("Scripting.Dictionary")

    ' Add some keys and items.
    d.Add "m", "Moscow"
    d.Add "n", "New York"
    d.Add "p", "Paris"

    ' Update keys
    d.Key("m") = "r"   ' Change "m" to "r"
    d.Key("n") = "s"   ' Change "n" to "s"

    ' Display all items with updated keys
    s = ""
    For Each Key In d.Keys
        s = s & "Key: " & Key & ", Item: " & d.Item(Key)
    Next

    UpdateKeysAndDisplay = s
End Function

' Usage
Dim result
result = UpdateKeysAndDisplay()
' Output: Key: r, Item: Moscow Key: s, Item: New York Key: p, Item: Paris