請舉一個簡單的例子說明Switch 函數的用法.

題目：

請舉一個簡單的例子說明Switch 函數的用法.

解答：

Function MatchUp (CityName As String)
Matchup = Switch(CityName = "London", "English", CityName _
= "Rome", "Italian", CityName = "Paris", "French")
End Function