我已经用尽了所有选择，并且非常渴望帮助，因为我无法弄清楚代码中的错误在哪里，或者是否有我不明白的地方。
我正在尝试创建一个“我认为它是黄鼠狼！” 模仿理查德·道金斯 80 年代后期关于进化的纪录片。目标是通过遗传算法取得进展，直到算法通过变异和适应度锦标赛猜出正确答案。
现在，问题来了：
Private Function fitnessTourney(ByVal editGuess() As Guess, ByVal popIndex As Integer, ByVal tourneySize As Integer, ByVal popNum As Integer)
Dim randInt(tourneySize - 1) As Integer
Dim loopCount1 As Integer = 0
Dim fitnessWinner As New Guess
fitnessWinner.setFitness(-50)
...而且，这个循环是我遇到严重错误的地方...
For i = 0 To tourneySize - 1
Randomize()
randInt(i) = Int(Rnd() * popNum)
While editGuess(randInt(i)).Used = True
If loopCount1 > tourneySize Then
loopCount1 = 0
For i2 = 0 To popNum - 1
editGuess(i2).setUsed(False)
Next
i = -1
Continue For
End If
loopCount1 += 1
randInt(i) = Int(Rnd() * popNum)
End While
editGuess(randInt(i)).determineFitness(correctPhrase)
editGuess(randInt(i)).setUsed(True)
Next
For i = 0 To popNum - 1
editGuess(i).setUsed(False)
Next
这个循环试图做的是挑选出四个随机的 editGuess 对象数组实例。这个循环试图防止一个被多次使用，因为人口正在与 10 个成员中的一个竞争（应该是 4 个被选中的候选人中的最高适应度获胜）。
严重的错误是我神秘地得到了一个无限循环，其中任何 editGuess(randInt(i)).Used 实例将始终评估为真。如果它循环太多次，我试图通过将所有实例重置为 False 来解决这个问题。
难点是我会让所有实例在调试器中评估为 False。然后，当我到达“editGuess(randInt(i)).setUsed(True)”（与“editGuess(randInt(i)).Used = True”完全相同）时，它为数组的每个成员设置这个值.
有没有人可以看到正在发生的事情？我非常接近完成这个！
这是猜测类：
Public Class Guess
Dim Fitness As Integer
Dim strLength As Integer
Dim strArray(30) As String
Dim guessStr As String
Dim Used As Boolean
Public Sub New()
Fitness = 0
guessStr = ""
strLength = 0
Used = 0
End Sub
Public Sub determineFitness(ByVal correctPhrase As String)
Dim lowerVal
If guessStr.Length <= correctPhrase.Length Then
lowerVal = guessStr.Length
Else
lowerVal = correctPhrase.Length
End If
strArray = guessStr.Split("")
Fitness = 0 - Math.Abs(correctPhrase.Length - guessStr.Length)
For i = 0 To lowerVal - 1
If correctPhrase(i) = guessStr(i) Then
Fitness = Fitness + 1
End If
Next
End Sub
Public Sub Mutate(ByVal mutatepercentage As Decimal, ByVal goodLetters As String)
If mutatepercentage > 100 Then
mutatepercentage = 100
End If
If mutatepercentage < 0 Then
mutatepercentage = 0
End If
mutatepercentage = mutatepercentage / 100
If Rnd() < mutatepercentage Then
strLength = Int(Rnd() * 25) + 5
If strLength < guessStr.Length Then
guessStr = guessStr.Remove(strLength - 1)
End If
End If
For i = 0 To strLength - 1
If Rnd() < mutatepercentage Then
If i < guessStr.Length Then
guessStr = guessStr.Remove(i, 1).Insert(i, goodLetters(Int(Rnd() * goodLetters.Length)))
Else
guessStr = guessStr & goodLetters(Int(Rnd() * goodLetters.Length))
End If
End If
Next
End Sub
Public Sub setFitness(ByVal num As Integer)
Fitness = num
End Sub
Public Sub setStrLength(ByVal num As Integer)
strLength = num
End Sub
Public Sub initializeText()
End Sub
Public Sub setUsed(ByVal bVal As Boolean)
Used = bVal
End Sub
结束类
最后，这里是函数的调用位置和方式
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
population1(counter) = fitnessTourney(population1, counter, 4, 10)
population2(counter) = fitnessTourney(population2, counter, 4, 10)
population1(counter).Mutate(2, goodLetters)
population2(counter).Mutate(20, goodLetters)
Label1.Text = population1(counter).guessStr
Label2.Text = population2(counter).guessStr
counter += 1
If counter > 9 Then
counter = 0
End If
End Sub
结束类
编辑1：谢谢你们的评论。
这是我用于表单的自定义构造函数。这用于填充使用 editGuess 传递给 FitnessTourney 函数的人口数组。
Public Sub New()
InitializeComponent()
Randomize()
For i = 0 To 9
population1(i) = New Guess
population2(i) = New Guess
Next
counter = 0
correctPhrase = "Methinks it is a weasel!"
goodLetters = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ !@#$%^&*()_+-=?></.,;\|`'~"
goodLettersArr = goodLetters.Split("")
For i = 0 To 9
population1(i).setStrLength(Int(Rnd() * 25) + 5)
population2(i).setStrLength(Int(Rnd() * 25) + 5)
For i2 = 0 To population1(i).strLength
population1(i).guessStr = population1(i).guessStr & goodLetters(Int(Rnd() * goodLetters.Length))
Next
For i2 = 0 To population2(i).strLength
population2(i).guessStr = population2(i).guessStr & goodLetters(Int(Rnd() * goodLetters.Length))
Next
Label1.Text = population1(i).guessStr
Label2.Text = population2(i).guessStr
Next
population1(0).guessStr = correctPhrase
population1(0).determineFitness(correctPhrase)
End Sub