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VB5 引入枚举变量，使用它，我们可以显著地改变应用程序的易读性：

Public Enum TimeOfDay

Morning = 0

Afternoon = 1

Evening = 2

End Enum

Sub Main()

Dim RightNow As TimeOfDay

If Time >= #12:00:00 AM# And Time < #12:00:00 PM# Then

RightNow = Morning

ElseIf Time >= #12:00:00 PM# And Time < #6:00:00 PM# Then

RightNow = Afternoon

ElseIf Time >= #6:00:00 PM# Then

RightNow = Evening

End If

End Sub