有如下程序:Private Sub Form_Click()Dim Check, CounterCheck = TrueCounter = 0DoDo While Counter 20Counter = Counter + 1If Counter = 10 ThenCheck = FalseExit DoEnd IfLoopLoop Until Check = FalsePrint Counter, CheckEnd Sub程序运行后,单击窗体,输出结果为( )。A.15 0B.20 -1C.10 TrueD.10 False

有如下程序:

Private Sub Form_Click()

Dim Check, Counter

Check = True

Counter = 0

Do

Do While Counter < 20

Counter = Counter + 1

If Counter = 10 Then

Check = False

Exit Do

End If

Loop

Loop Until Check = False

Print Counter, Check

End Sub

程序运行后,单击窗体,输出结果为( )。

A.15 0

B.20 -1

C.10 True

D.10 False


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