我目前正在编写一个程序来解决脑筋急转弯，
这是如何工作的：仅使用数字 1-9 一次，制作四个角，每个对角线 = 26 提示使中间 7
无论如何，我的代码基本上从“111111111”开始并计数，每次检查它是否匹配所需的参数。
代码：
Public Class Main
Dim count As Integer
Dim split() As Char
Dim done As Boolean
Dim attempts As Integer
Private Sub IncreaseOne()
If count < 999999999 Then
count += 1
Else
done = True
End If
If CStr(count).Contains("0") Then
count = CStr(count).Replace("0", "1")
End If
End Sub
Private Sub Reset()
count = 111111111
attempts = 0
End Sub
Private Sub IntToLbl()
split = CStr(count).ToCharArray
lbl1.Text = split(0)
lbl2.Text = split(1)
lbl3.Text = split(2)
lbl4.Text = split(3)
lbl5.Text = split(4)
lbl6.Text = split(5)
lbl7.Text = split(6)
lbl8.Text = split(7)
lbl9.Text = split(8)
lblAttempts.Text = "Attempt: " & attempts
End Sub
Private Sub Check()
attempts += 1
If split(0) + split(1) + split(7) + Int(8) = 26 And split(0) + split(2) + split(4) + split(6) + split(8) = 26 And split(1) + split(3) + split(4) + split(5) + split(7) = 26 Then
If CStr(count).Contains("1") And CStr(count).Contains("2") And CStr(count).Contains("3") And CStr(count).Contains("4") _
And CStr(count).Contains("5") And CStr(count).Contains("6") And CStr(count).Contains("7") And CStr(count).Contains("8") _
And CStr(count).Contains("9") Then
ListBox1.Items.Add("A" & attempts & ": " & CStr(count))
End If
End If
End Sub
Private Sub Act()
While done = False
IncreaseOne()
IntToLbl()
Check()
End While
tr.Abort()
End Sub
Dim suspended As Boolean = False
Dim tr As New System.Threading.Thread(AddressOf Act)
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles btnSolve.Click
If suspended = True Then
tr.Resume()
suspended = False
Else
If tr.IsAlive = False Then
Reset()
tr.Start()
CheckForIllegalCrossThreadCalls = False
Else
Dim Reply = MsgBox("Thread is running! Stop the thread?", MsgBoxStyle.YesNo, "Error!")
If Reply = MsgBoxResult.Yes Then
tr.Suspend()
suspended = True
End If
End If
End If
End Sub
Private Sub Main_FormClosing(sender As Object, e As FormClosingEventArgs) Handles Me.FormClosing
tr.Abort()
End Sub
Private Sub tr2_Tick(sender As Object, e As EventArgs) Handles tr2.Tick
IncreaseOne()
IntToLbl()
Check()
End Sub
End Class