从9个中选择四个随机数而不重复

我想生成9个随机数。然后我会从这9个随机数中得到4个，但是四个随机条目*不能重复。有28个可能的结果。随机化工作正常，但我不明白为什么我不能让复选框得到检查。我一直在尝试了一整天，请帮助从9个中选择四个随机数而不重复

Dim rn As New Random 
    Dim n(9) As Integer 
    n(1) = rn.Next(1, 2) 
    n(2) = rn.Next(1, 3) 
    n(3) = 1 
    n(4) = rn.Next(1, 3) 
    n(5) = 1 
    n(6) = rn.Next(1, 4) 
    n(7) = rn.Next(1, 7) 
    n(8) = rn.Next(1, 4) 
    n(9) = rn.Next(1, 3) 

    Dim loopcount As Integer = 4 
    Dim l(4), ln, lm As Integer 
    ln = 1 
    lm = 1 

    l(1) = rn.Next(1, 9) 
    l(2) = rn.Next(1, 9) 
    While l(2) = l(1) 
     l(2) = rn.Next(1, 9) 
    End While 
    l(3) = rn.Next(1, 9) 
    While l(3) = l(2) Or l(3) = l(1) 
     l(3) = rn.Next(1, 9) 
    End While 
    l(4) = rn.Next(1, 9) 
    While l(4) = l(3) Or l(4) = l(2) Or l(4) = l(1) 
     l(3) = rn.Next(1, 9) 
    End While 

    MsgBox(l(1) & l(2) & l(3) & l(4)) 
    MsgBox(n(1) & n(2) & n(3) & n(4) & n(5) & n(6) & n(7) & n(8) & n(9)) 

    While loopcount > 0 
     If ln = 1 Then lm = l(1) 
     If ln = 2 Then lm = l(2) 
     If ln = 3 Then lm = l(3) 
     If ln = 4 Then lm = l(4) 

     If l(ln) = 1 & n(lm) = 1 Then 1.CheckState = 1 
     If l(ln) = 1 & n(lm) = 2 Then 2.CheckState = 1 
     If l(ln) = 2 & n(lm) = 1 Then 3.CheckState = 1 
     If l(ln) = 2 & n(lm) = 2 Then 4.CheckState = 1 
     If l(ln) = 2 & n(lm) = 3 Then 5.CheckState = 1 
     If l(ln) = 3 & n(lm) = 1 Then 6.CheckState = 1 
     If l(ln) = 4 & n(lm) = 1 Then 7.CheckState = 1 
     If l(ln) = 4 & n(lm) = 2 Then 8.CheckState = 1 
     If l(ln) = 4 & n(lm) = 3 Then 9.CheckState = 1 
     If l(ln) = 5 & n(lm) = 1 Then 10.CheckState = 1 
     If l(ln) = 6 & n(lm) = 1 Then 11.CheckState = 1 
     If l(ln) = 6 & n(lm) = 2 Then 12.CheckState = 1 
     If l(ln) = 6 & n(lm) = 3 Then 13.CheckState = 1 
     If l(ln) = 6 & n(lm) = 4 Then 14.CheckState = 1 
     If l(ln) = 7 & n(lm) = 1 Then 15.CheckState = 1 
     If l(ln) = 7 & n(lm) = 2 Then 16.CheckState = 1 
     If l(ln) = 7 & n(lm) = 3 Then 17.CheckState = 1 
     If l(ln) = 7 & n(lm) = 4 Then 18.CheckState = 1 
     If l(ln) = 7 & n(lm) = 5 Then 19.CheckState = 1 
     If l(ln) = 7 & n(lm) = 6 Then 20.CheckState = 1 
     If l(ln) = 7 & n(lm) = 7 Then 21.CheckState = 1 
     If l(ln) = 8 & n(lm) = 1 Then 22.CheckState = 1 
     If l(ln) = 8 & n(lm) = 2 Then 23.CheckState = 1 
     If l(ln) = 8 & n(lm) = 3 Then 24.CheckState = 1 
     If l(ln) = 8 & n(lm) = 4 Then 25.CheckState = 1 
     If l(ln) = 9 & n(lm) = 1 Then 26.CheckState = 1 
     If l(ln) = 9 & n(lm) = 2 Then 27.CheckState = 1 
     If l(ln) = 9 & n(lm) = 3 Then 28.CheckState = 1 

     ln = ln + 1 
     loopcount = loopcount - 1 
    End While 

    Call Generate()

来源

2014-02-27 Jan

我认为你需要可以重命名复选框或使用方括号：

[1].CheckState = 1 'for example.

而且，你已经使用&这应该是And。 ..

If l(ln) = 1 & n(lm) = 1 Then 1.CheckState = 1

...应该是...

If l(ln) = 1 And n(lm) = 1 Then [1].CheckState = 1

虽然这可以缩短为...

[1].CheckState = 1 And (l(ln) = 1) And (n(lm) = 1)

来源

2014-02-27 10:20:11 Paul

感谢您的答复，复选框有不同的名称。我只是将它们改为数字，因为它们很长，并显示它们是28，但如果它有帮助，我可以在原始代码中提供原始名称。 – Jan

@Jan：对不起 - 刚更新了我的答案。 – Paul

谢谢你会马上尝试 – Jan

从9个中选择四个随机数而不重复

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