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() Dim i As Integer 39。定義i為整型變量 Dim j As Integer 39。定義j為整型變量答案:①abs(i)②print str。③i Dim str As String For i = 2 To 2 str = For j = 1 To 3 _______ str = str amp。 * Next j _______ Print 39。換行 Next _______End Sub223:輸出以下圖形:*********Private Sub Form_Click()Dim i As Integer 39。定義i為整型變量答案:①abs(i)②print “*”。③iDim j As Integer 39。定義j為整型變量For i = 2 To 2 For j = 1 To 3 _________ _________ Next j Print 39。換行Next _________End Sub604:填空完成程序,編程計(jì)算11/2+1/31/4+...+1/991/100,單擊窗體后,在窗體上顯示結(jié)果。注:請不要更改源程序結(jié)構(gòu),刪除(1)、(2)、(3),并在對應(yīng)位置填寫正確的代碼。Private Sub Form_Click() Dim s As Single Dim i As Integer答案:①0②100③s1/i s = (1) For i = 1 To (2) Step 1 If i Mod 2 0 Then s = s + 1 / i Else s = (3) End If Next i Print s=。 sEnd Sub607:填空完成程序,使得單擊顯示按鈕后,隨機(jī)產(chǎn)生10個(gè)屬于區(qū)間[0,100)的自然數(shù),并保存于數(shù)組a中。然后在窗體上顯示這10個(gè)數(shù)的平均值。注:學(xué)生運(yùn)算結(jié)果有可能跟樣圖中數(shù)值不一致。注:請不要更改源程序結(jié)構(gòu),刪除(1)、(2),并在對應(yīng)位置填寫正確的代碼。Private Sub Command1_Click() Dim a(9) As Integer Dim s As Single Dim i As Integer 答案:①9②s+a(i) s = 0 Randomize For i = 0 To (1) Step 1 a(i) = Int(Rnd * 1