执行以下程序段，则第一行输出结果是_______，第二行输出结果是_______。Dim a(-6 To 7) As SingleDim b(2, 6) As IntegerPrint UBound(a), UBound(b, 1)Print LBound(a), LBound(b, 2)

执行以下程序，单击命令按钮后，输出结果是______。Private Sub Command1_Click()Dim a(5) As IntegerDim bFor i = 1 To 5a(i) = i*iNext iFor Each b In aPrint b;Next bEnd Sub

执行以下程序，单击命令按钮后，如果从键盘上输入5，则第一行输出结果是______，第二行输出结果是______。Private Sub Command1_Click()Dim a() As IntegerDim n As Integer, i As Integern =InputBox("input n:")ReDim a(n)For i = 1 To na(i) = 2*iPrint a(i);Next iPrintReDim a(10)For i =0 To 10Print a(i);Next iEnd Sub

执行下列程序，单击命令按钮在窗体上输出结果为______。Option Base 1Private Sub Command1_Click()Dim a(3, 3) As Integer, k As IntegerDim i As Integer, j As Integer, n As Integern = UBound(a, 1)For i = 1 To n - 2For j = i To n - ia(i, j) = k + 4a(j, n +1 - i) = k + 3a(n + 1- i, n + 1 - j) = k + 2a(n + 1 - j, i) = k + 1k = k + 4Next jNext iIf n Mod 2 <> 0 Thena((n + 1) / 2, (n + 1) / 2) = k + 1End IfPrint a(1, 2); a(2, 3); a(3, 3)End Sub

执行下面程序，第二行输出结果是______，第五行输出结果是______，第七行输出结果是______。Private Sub Command1_Click()Dim a(4, 5) As Integer, i As Integer, j As IntegerFor i = 1 To 4For j = 1 To 5a(i, j) = i * 8 + j - 1Print a(i, j);Next jPrintNext iFor i = 2 To 4a(i, i + 1) = a(i - 1, i) + 4Next iFor i = 1 To 4For j = 1 To 5Print a(i, j);Next jPrintNext iEnd Sub

执行下面程序，若依次输入1，2，3，4，5，6，则输出结果是______。Option Base 1Private Sub Command1_Click()Dim a(3, 2) As IntegerDim i%, j%, tFor i = 1 To 3For j = 1 To 2a(i, j) = InputBox("请输入数组元素的值")Next jNext iFor Each t In aPrint t;Next tEnd Sub

运行下列程序，单击命令按钮后，在窗体上输出结果为______。Option Base 1Private Sub Command1_Click()Dim a(3, 3), s(3)Dim x, i%For i = 1 To 3s(i) = 0For j = 1 To 3a(i, j) = i *js(i) = s(i) + a(i, j)Next jNext iFor Each x In sPrint x;Next xEnd Sub

若有定义float y[5]={1，2，3};则下列描述正确的是( )

A. y并不代表数组元素
B. 定义此数组时不指定数组的长度，定义效果相同
C. 数组含有3个元素
D. y[3]的值为3

下列程序的运行结果是（ ） main（） {int z,y[3]={2,3,4}; z=y[y[2]]=10; printf(“%d”,z);}

A. 10
B. 2
C. 3
D. 运行时出错

若有定义语句int a[]={1,8,2,8,3,8,4,8,5,8}; 则数组a的大小是（ ）

A. 10
B. 11
C. 5
D. 不定