1、If Button = 2 Then Label1.Caption = X & , & YEnd If4、利用随机函数产生25个10到99之间的整数,按从小到大的顺序显示。Dim a(1 To 25)Cls a(i) = Int(Rnd * (99 - 10 + 1) + 10) Print a(i);For i = 1 To 25 - 1 For j = 1 To 25 - i If a(j) a(j + 1) Then tmp = a(j): a(j) = a(j + 1): a(j + 1) = tmp5、利用随机函数产生50个 1,6 之间的整数, 分别统计出1的个数,2的个数,3的个
2、数,4的个数,5的个数和6的个数。Dim a(1 To 6)For i = 1 To 6 a(i) = 0For j = 1 To 50 x = Int(Rnd * (6 - 1 + 1) + 1) a(x) = a(x) + 1Next j Print i &出现了 a(i);次6、在文本框中输入一些英语单词,统计空格的个数。Dim n%, x As String, s%n = Len(Text1.Text)x = Text1.TextFor i = 1 To n If Mid(x, i, 1) = Then s = s + 1Print 共出现了 s &个空格7、编程计算下列公式的值,其中
3、n (10)为从键盘输入的正整数。S=1!+3!+5!+(2*n-1)! Private Sub Form_Click()n = Val(InputBox(请输入一个不大于10的整数)s = 0For i = 1 To 2 * n - 1 Step 2 p = 1 For j = 1 To i p = p * j s = s + pPrint s8、编程计算下列公式的值,其中n ( max Then max = a(i): loc = i最大的数是; max在数组中是第 loc;个数14、利用随机函数产生并显示10个4位数的正整数,找出其中的最小数。Dim i%, min%, loc% a(i
4、) = Int(Rnd * (9999 - 1000 + 1) + 1000)min = 9999 If a(i) min Then min = a(i):最小的数是 min15、当按下鼠标左键时,窗体的背景色变为红色;松开鼠标左键时,窗体的背景色变为绿色。If Button = 1 Then Form1.BackColor = vbRedPrivate Sub Form_MouseUp(Button As Integer, Shift As Integer, X As Single, Y As Single)If Button = 1 Then Form1.BackColor = vbGre
5、en16、编制一个时钟程序,如下图:Label1.BackColor = vbWhiteTimer1.Enabled = TrueTimer1.Interval = 1000Private Sub Timer1_Timer()Label1.Caption = Time17、从键盘输入10个数,按输入的顺序和按输入顺序相反的顺序输出。Dim i%Dim a(1 To 10) As Single a(i) = Val(InputBox(请输入第 i &For i = 10 To 1 Step -1 18、计算圆面积的程序。程序运行时,单击窗体,然后在下图所示的输入框中输入圆的半径,即可在窗体上显示
6、计算出的圆面积。Dim r%, a As SingleConst pi As Single = 3.14159r = Val(InputBox(请输入圆半径 vbCrLf &(1-9):, 输入, 5)a = pi * r 2半径为 r;的圆面积为 a19、编写一个时钟程序,当选择“24小时”时,以24小时的方式显示如A,当选择“12小时”时,以12小时的方式显示如B。Select Case True Case Option1.Value Label1.Caption = Time Case Option2.Value Label1.Caption = Format(Time, HH:MM:S
7、S AM/PM)End Select20、设计一个程序,用户界面如图所示。程序运行后,用户在文本框中输入一段文字,然后按需要单击选择框,用以改变文本的字体、字型、颜色以及大小。Private Sub Check1_Click()If Check1.Value = 1 Then Text1.FontName = 黑体宋体Private Sub Check2_Click()If Check2.Value = 1 Then Text1.FontUnderline = True Text1.FontUnderline = FalsePrivate Sub Check3_Click()If Check3
8、.Value = 1 Then Text1.FontSize = 20 Text1.FontSize = 9Private Sub Check4_Click()If Check4.Value = 1 Then Text1.ForeColor = vbGreen Text1.ForeColor = vbBlackPrivate Sub Command1_Click()Text1.Text = Private Sub Command2_Click() End20做出2个周期的正弦波形. Private Sub Form_Click()Dim i%, x#, y#Const pi As String
9、 = 3.1415926Form1.Scale (-2 * pi, 1.2)-(2 * pi, -1.2)Form1.Line (-2 * pi, 0)-(2 * pi, 0)Form1.Line (0, 1.2)-(0, -1.2)For x = -2 * pi To 2 * pi Step 0.01 y = Sin(x) Form1.PSet (x, y)Next x21以窗体为中心,产生1000个半径颜色随机的同心圆.For i = 1 To 1000 x = Form1.ScaleWidth / 2 y = Form1.ScaleHeight / 2 r = Int(Rnd * y)
10、c = RGB(255 * Rnd, 255 * Rnd, 255 * Rnd) Form1.Circle (x, y), r, cNext22.九九乘法表Dim i%, j%Form1.Caption = 九九乘法表Print Tab(48); Caption-For i = 1 To 9 Print Tab(j - 1) * 12 + 1); i;* j;= i * j;23求最大公约数和最小公倍数Private Sub command1_Click()Dim m%, n%, r%, t%m = Val(Text1.Text)n = Val(Text2.Text)If m n Then t = m: m = n: n = tt = m * nDo r = m Mod n m = n n = rLoop Until r = 0Text3.Caption = 公约数: mText4.Caption = 公倍数 t / m24.用随机函数产生50个两位数,保存于一个一维数组中,要求找出其中的最大值,最小值及所在位置.
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