执行程序后，a数组各元素是（ ） Dim a(1 To 7) As Integer
a(1) = 14: a(2) = 15: a(3) = 0: a(4) = 11: a(5) = 13: a(6) = 21: a(7) = 17
i = 6: flag = True
Do While i > 1 And flag
If a(i) Mod 3 = 0 And a(i) <> 0 Then
t = a(i): a(i) = a(i + 1): a(i + 1) = t
ElseIf a(i) = 0 Then
flag = flase
ElseIf a(i + 1) Mod 2 = 1 Then
a(i) = Abs(a(i) - a(i + 1))
End If
i = i - 1
Loop
