Question

可能重复：
tic tac toe coding for tie

我有一个tic tac toe程序，我已经按照应有的方式工作了。但是，我对这个编码的最后一个问题是，我似乎无法弄清楚何时存在如何编码的关系。这是我到目前为止所拥有的。

Public Class Form1

Private turn As Integer = 1
Private play() As String = {"O", "X"}
Private board(2, 2) As String

Private Structure arrayIndex
    Dim x As Integer
    Dim y As Integer
End Structure

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    For x As Integer = 1 To 9
        Dim b As New Button With { _
            .Width = 80, _
            .Height = 80, _
            .Text = "", _
            .Location = New Point(60 + (((x - 1) Mod 3) * 80), 60 + (((x - 1) \ 3) * 80)), _
            .Tag = New arrayIndex With {.x = (x - 1) Mod 3, .y = (x - 1) \ 3}}
        Me.Controls.Add(b)
        AddHandler b.Click, AddressOf buttons_click

    Next
    Me.SetClientSizeCore(360, 360)

End Sub

Private Sub buttons_click(ByVal sender As System.Object, ByVal e As System.EventArgs)
    If DirectCast(sender, Button).Text <> "" Then Return
    DirectCast(sender, Button).Text = play(turn Mod 2)
    Dim index As arrayIndex = DirectCast(DirectCast(sender, Button).Tag, arrayIndex)
    board(index.x, index.y) = play(turn Mod 2)
    turn += 1
    winner()
End Sub

Private Sub winner()
    Dim rows(7) As String
    rows(0) = board(0, 0) & board(1, 0) & board(2, 0)
    rows(1) = board(0, 1) & board(1, 1) & board(2, 1)
    rows(2) = board(0, 2) & board(1, 2) & board(2, 2)
    rows(3) = board(0, 0) & board(0, 1) & board(0, 2)
    rows(4) = board(1, 0) & board(1, 1) & board(1, 2)
    rows(5) = board(2, 0) & board(2, 1) & board(2, 2)
    rows(6) = board(0, 0) & board(1, 1) & board(2, 2)
    rows(7) = board(2, 0) & board(1, 1) & board(0, 2)

    For x As Integer = 0 To 7
        If rows(x).Length = 3 AndAlso (rows(x)(0) = rows(x)(1) AndAlso rows(x)(0) = rows(x)(2)) Then
            If MessageBox.Show(rows(x)(0) & "'s winsssss!", "We have a winner!", MessageBoxButtons.OKCancel, MessageBoxIcon.Information) = DialogResult.OK Then
                turn = 1
                ReDim board(2, 2)
                For Each ctrl As Control In Controls
                    ctrl.Text = ""
                Next
                Return
            Else
                Me.Close()


            End If

        End If
    Next

End Sub


End Class

Answer 1

你有Me.close()的地方，那就是说你有平局的地方。基本上你投入到这里的逻辑很简单，如果一方（x或者o）获胜，那么会有一个显示它的消息框。然后你重置游戏并返回。之后有else语句Me.close() else表示没有人赢得游戏，因此假设存在平局。（如果所有空格都已填满）

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