VB實驗任務11答案

1、.實驗任務11課程名稱：程序設計基礎VB實驗名稱實驗十一 數組（1）一、實驗目的：1掌握數組的聲明和數組元素的引用2掌握定長數組使用3掌握一維數組的基本操作算法二、實驗內容（包括實驗要求(題目)、實驗步驟、程序清單、運行情況）：注意：其中每個同學實驗1自行寫結果驗證，實驗2實驗6發(fā)老師郵箱，盡量課上發(fā)。實驗1 人工寫出如下程序的運行結果，并利用單步調試工具驗證執(zhí)行流程和運行結果，進一步深入弄清和理解數組的訪問。（1）在窗體上畫一個命令按鈕（其Name屬性為Command1），然后編寫如下代碼：Private Sub Command1_Click() Dim a(5) As Integer, i

2、 As Integer, t As Integer For i = 0 To 4 a(i) = i + 1 t = i + 1 If t = 3 Then Print a(i); a(t - 1) = a(i - 2) Else a(t) = a(i) End If If i = 3 Then a(i + 1) = a(t - 4) : Exit For a(4) = 1 Print a(i); Next IEnd Sub運行程序，單擊命令按鈕，輸出結果是 。（2）下面的事件過程執(zhí)行結束后，K的值是 ，A(2)的值是 ，A(7)的值是 ，程序中第二個循環(huán)被執(zhí)行了 次，程序中第三個循環(huán)被執(zhí)行了

3、次。Option ExplicitOption Base 1 將數組的下界的默認值設為1Private Sub Command1_Click() Dim A(10) As Integer, i As Integer, K As Integer For i = 1 To 10 A(i) = 1 Next i K = 1 For K = 1 To K Step K A(K) = 0 K = K + 2 Next K For K = K To 10 Step -1 A(K) = K K = K + 2 Next KEnd Sub（3）執(zhí)行下面程序，單擊命令按鈕Command1后，數組元素A(1, 2

4、)的值是 ，數組元素A(2, 2)的值是 ，數組元素A(3, 3)的值是 。Private Sub Command1_Click() Dim A(3, 3) As Integer, i As Integer, j As Integer, k As Integer Dim B i = 3: j = 1 A(i, j) = 1 For k = 2 To 9 If i + 1 3 Or j + 1 3 Then If j = 1 Then i = i - 1 ElseIf A(i - 1, j - 1) = 0 Then i = i - 1: j = j - 1 ElseIf j = 3 Then

5、i = i - 1 Else j = j + 1 End If ElseIf j = 1 Or i = 1 Then If A(i + 1, j + 1) = 0 Then i = i + 1: j = j + 1 Else j = j + 1 End If Else If A(i - 1, j - 1) = 0 Then i = i - 1: j = j - 1 End If End If A(i, j) = k Next k For Each B In A Print B Next End Sub實驗2實驗7-1 隨機生成12個二位正整數，分別賦值給一個34的數組，找出每一行中的最大元素，

6、運行后界面如圖7-6所示。（參看例7-10）部分程序代碼如下請?zhí)羁铡ption ExplicitOption Base 1 將數組的下界的默認值設為1Dim a(3, 4) As IntegerPrivate Sub Form_Click() Dim i As Integer, j As Integer, mmax As Integer Randomize Print 數組: For i = 1 To 3 For j = 1 To 4 a(i, j) = Int(Rnd*(99-10+1)+10) Print a(I,j); Next j Print Next i Print 其中: For i = 1 To 3 mmax = a(I,1) For j = 2 To 4 If mmax max Then max = col(j): maxcol = j End If Ne