• 2022-06-06
    设有如下事件过程:Private Sub Command1_Click() ch = "ABCDEFG" n = Len(ch) k = 1 Do Print Mid(ch, k, 1); Mid(ch, n, 1); k = k + 1 n = n - 1 Loop Until k > nEnd Sub运行此过程所产生的输出是
    A: AGBFCEDD
    B: AGBFCED
    C: GFEDCBA
    D: GAFBECD
  • 举一反三