从书上写了这个程序不明白为什么会出现这个结果
Private Sub Command1_Click()
a = 1: b = 0
Select Case a
Case 1
Select Case b
Case 0
Print "**0**"
Case 1
Print "**1**"
End Select
Case 2
Print "**2**"
End Select
End Sub
Private Sub Command1_Click()
a = 1: b = 0
Select Case a
Case 1
Select Case b
Case 0
Print "**0**"
Case 1
Print "**1**"
End Select
Case 2
Print "**2**"
End Select
End Sub