vb 编写一个抽奖程序

vb\u8bbe\u8ba1\u968f\u673a\u62bd\u5956\u7a0b\u5e8f

'5\u4e2a\u6587\u672c\u6846\u6539\u6210\u63a7\u4ef6\u6570\u7ec4\uff0c\u7d22\u5f15\u4ece0\u52304Private isStop As BooleanPrivate Sub Command1_Click() '\u6570\u5b57\u6eda\u52a8 Randomize Dim rndIndex As Integer isStop = False Do Until isStop '\u5faa\u73af\u8bed\u53e5\u6eda\u52a8\u6570\u5b57\u592a\u5feb\u4e86\uff0c\u5e94\u8be5\u653e\u5728\u65f6\u949f\u63a7\u4ef6\u4e2d\u8f83\u597d\uff0c\u53ef\u4ee5\u63a7\u5236\u901f\u5ea6 rndIndex = Int(Rnd * 5) '\u4ea7\u751f\u4e00\u4e2a\u968f\u673a\u7684\u6587\u672c\u6846\u6570\u7ec4\u7d22\u5f15 Text1(rndIndex) = (Val(Text1(rndIndex)) + 1) Mod 10 '\u5bf9\u6587\u672c\u6846\u589e\u52a0\u4e00\u4e2a\u503c DoEvents LoopEnd SubPrivate Sub Command2_Click() '\u505c\u6b62\u6eda\u52a8 isStop = TrueEnd Sub

'\u968f\u673a\u51fd\u6570\uff0c\u968f\u673a\u6392\u5e8f\u3002Private Sub Command1_Click()Dim a1(4) As Stringa = Array("\u59d3\u540d\u4e00","\u59d3\u540d\u4e8c", "\u59d3\u540d\u4e09", "\u59d3\u540d\u56db", "\u59d3\u540d\u4e94", "\u59d3\u540d\u516d","\u59d3\u540d\u4e03", "\u59d3\u540d\u516b", "\u59d3\u540d\u4e5d", "\u59d3\u540d\u5341")For i = 0 To 4 Randomize i1 = Int((10 - i) * Rnd) a1(i) = a(i1) For i2 = i1 To 3 a(i2) = a(i2 + 1) Next Print a1(i) NextEnd Sub'\u8bf7\u53c2\u8003\u91c7\u7eb3\uff01\u8c22\u8c22\uff01

command1用来随机抽取，text2显示
text1用来自己输入
command2用来判断
基本思想：假设连续有a位相同，经过验证如果为真则得出结果，如果为假，则假设a=a-1位相同……直到a=0
也可以自己输入text2数据来检验程序
这段程序不局限于7位数

Private Sub Command2_Click()
Dim a$, b$, i%, j%, k%
a = CStr(Text1)
b = CStr(Text2)
For i = Len(a) To 1 Step -1
For j = 1 To Len(a) - i + 1
If Mid(a, j, i) = Mid(b, j, i) Then
k = i
Exit For
End If
Next
If k <> 0 Then Exit For
Next
Print k, Mid(a, j, i)'输出相同位数和相同数字
If len(a)+1-k>5 Then
MsgBox "对不起，无奖项"
Else
MsgBox Len(a) + 1 - k & "等奖"'判断奖项
End If
End Sub

Private Sub Command1_Click()
a = CStr(Text1)
Text2 = 10 ^ (Len(a) - 1) + Int(Rnd * 0.9 * 10 ^ Len(a))
End Sub

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