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举一反三
【单选题】下列关于Visual FoxPro的数组描述，错误的是______。
A.
数组中各元素的数据类型必须相同
B.
与简单内存变量不同，数组在使用之前要用DIMENSION或DECLARE命令创建
C.
Visual FoxPro只支持一维数组和二维数组
D.
数组的下标值下限为1
【单选题】有如下事件过程：Private Sub Form_Load() Show Dim Arr() As Variant Arr = Array(1, 3, 5, 7, 9, 11, 13, 15) Call converse(Arr) For i = 0 To 7 Print arr(i); Next iEnd Sub 以上程序的功能是，通过调用Converse过程，将数组Arr中的元素逆序存放并输出...
A.
Private Sub converse(dim a() as Variant ) Dim T For i = LBound(A) To UBound(A) T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub
B.
Private Sub converse(dim a() as Variant) Dim T Dim J As Integer J = (LBound(A) + UBound(A)) / 2 For i = LBound(A) To J T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub
C.
Private Sub converse(a() As Variant) Dim T For i = LBound(A) To UBound(A) T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub
D.
Private Sub converse(a() As Variant) Dim T Dim J As Integer J = Int((LBound(A) + UBound(A)) / 2) For i = LBound(A) To J T = a(i) a(i) = a(UBound(A) - i) a(UBound(A) - i) = T Next i End Sub
【单选题】下列关于数组的描述，正确的是（）。
A.
在一个数组中不同的数组元素可以赋不同类型的值
B.
用DIMENSIONA（6）命令定义的数组共有7个元素
C.
数组定义好后，如果没有赋值，则每个数组元素的初值都是T
D.
数组的长度是可变的，而其中元素的数据类型必须相同