VB五子棋问题，请高手赐教

近期做课程设计，做了个五子棋人机对战的程序，但是“悔棋”和“保存棋局”两个功能不会实现，请高手赐教
附源程序：

Option Explicit
Dim comable   As Boolean
Dim comturn   As Boolean
Dim blackturn   As Boolean
Dim whiteturn   As Boolean
Dim comcolor   As Long
Dim black   As Long
Dim white   As Long
Dim i   As Single
Dim j   As Single
Dim table(-5 To 20, -5 To 20)        As Integer '用此二维数组表示棋盘’

Private Sub restart()
Form_Paint
For i = 0 To 15
  For j = 0 To 15
  table(i, j) = 0
  Next j
Next i
black = RGB(0, 0, 0)
white = RGB(255, 255, 255)
If comturn = True Then Call goes(7, 7)
End Sub

Private Sub goes(i As Single, j As Single)         '电脑将子走到table(i,j)’
If comturn = True And table(i, j) = 0 Then
FillColor = comcolor
FillStyle = 0
Dim x   As Single
Dim y   As Single
x = i * 300 + 100
y = j * 300 + 100
Circle (x, y), 100
comturn = False
table(i, j) = 2
End If
End Sub

Private Sub about_Click()
frmAbout.Show
End Sub

Private Sub doubleman_Click()  '双人’
blackturn = True
whiteturn = False
comable = False
comturn = False
restart
End Sub

Private Sub 退出_Click()
Dim i As Integer
 i = MsgBox("你想退出游戏吗？", vbOKCancel + vbExclamation, "提示")
 If i = vbOK Then
  Unload Me
 End If
End Sub

Private Sub Form_Load()
Form_Paint
comturn = True
End Sub

Private Sub Form_MouseDown(Button As Integer, Shift As Integer, x As Single, y As Single)               '人走’
Dim a   As Single
Dim b   As Single
Dim m   As Single
Dim n   As Single
If (x - 100) Mod 300 < 150 Then
      a = x - (x - 100) Mod 300
      ElseIf (x - 100) Mod 300 > 150 Then
      a = x + 300 - (x - 100) Mod 300
End If
If (y - 100) Mod 300 < 150 Then
      b = y - (y - 100) Mod 300
      ElseIf (y - 100) Mod 300 > 150 Then
      b = y + 300 - (y - 100) Mod 300
End If

i = (a - 100) / 300
j = (b - 100) / 300
If (comturn = False) And (table(i, j) = 0) Then
If blackturn = True Then
  FillColor = black
  Else
FillColor = white
End If
FillStyle = 0
Circle (a, b), 100
table(i, j) = 1

If comable = False Then
blackturn = blackturn Xor True
End If   '双人

If comable = True Then
comturn = True
judgeman
comdo
judgecom
End If   '人机对战

End If
End Sub
Private Sub judgeman()  '判断人是否获胜’
  Dim i   As Single
  Dim j   As Single
  For i = 0 To 15
    For j = 0 To 15
    If table(i, j) * table(i, j + 1) * table(i, j + 2) * table(i, j + 3) * table(i, j + 4) = 1 Then
            MsgBox "你赢了，真棒！"
    ElseIf table(i, j) * table(i + 1, j) * table(i + 2, j) * table(i + 3, j) * table(i + 4, j) = 1 Then
            MsgBox "你赢了，真棒！"
    ElseIf table(i, j) * table(i + 1, j + 1) * table(i + 2, j + 2) * table(i + 3, j + 3) * table(i + 4, j + 4) = 1 Then
            MsgBox "你赢了，真棒！"
    ElseIf table(i, j) * table(i - 1, j + 1) * table(i - 2, j + 2) * table(i - 3, j + 3) * table(i - 4, j + 4) = 1 Then
            MsgBox "你赢了，真棒！"
    End If
  Next j
  Next i
End Sub
Private Sub judgecom()  '判断电脑是否获胜’
Dim i   As Single
Dim j   As Single
For i = 0 To 15
For j = 0 To 15
If table(i, j) * table(i, j + 1) * table(i, j + 2) * table(i, j + 3) * table(i, j + 4) = 32 Then
            MsgBox "你输了，继续努力哦！"
    ElseIf table(i, j) * table(i + 1, j) * table(i + 2, j) * table(i + 3, j) * table(i + 4, j) = 32 Then
            MsgBox "你输了，继续努力哦！"
    ElseIf table(i, j) * table(i + 1, j + 1) * table(i + 2, j + 2) * table(i + 3, j + 3) * table(i + 4, j + 4) = 32 Then
            MsgBox "你输了，继续努力哦！"
    ElseIf table(i, j) * table(i - 1, j + 1) * table(i - 2, j + 2) * table(i - 3, j + 3) * table(i - 4, j + 4) = 32 Then
            MsgBox "你输了，继续努力哦！"
End If
Next j
Next i
End Sub

Private Function wantfive(i, j, k) As Boolean        '定式1’
If table(i, j) = 0 And (table(i - 4, j) * table(i - 3, j) * table(i - 2, j) * table(i
4000
- 1, j) = k * k * k * k _
                                            Or table(i - 4, j - 4) * table(i - 3, j - 3) * table(i - 2, j - 2) * table(i - 1, j - 1) = k * k * k * k _
                                            Or table(i, j - 4) * table(i, j - 3) * table(i, j - 2) * table(i, j - 1) = k * k * k * k _
                                            Or table(i + 1, j - 1) * table(i + 2, j - 2) * table(i + 3, j - 3) * table(i + 4, j - 4) = k * k * k * k _
                                            Or table(i + 1, j) * table(i + 2, j) * table(i + 3, j) * table(i + 4, j) = k * k * k * k _
                                            Or table(i + 1, j + 1) * table(i + 2, j + 2) * table(i + 3, j + 3) * table(i + 4, j + 4) = k * k * k * k _
                                            Or table(i, j + 1) * table(i, j + 2) * table(i, j + 3) * table(i, j + 4) = k * k * k * k _
                                            Or table(i - 1, j + 1) * table(i - 2, j + 2) * table(i - 3, j + 3) * table(i - 4, j + 4) = k * k * k * k _
                                            Or table(i - 3, i) * table(i - 2, j) * table(i - 1, j) * table(i + 1, j) = k * k * k * k _
                                            Or table(i - 3, j - 3) * table(i - 2, j - 2) * table(i - 1, j - 1) * table(i + 1, j + 1) = k * k * k * k _
                                            Or table(i, j - 3) * table(i, j - 2) * table(i, j - 1) * table(i, j + 1) = k * k * k * k _
                                            Or table(i + 1, j - 1) * table(i + 2, j - 2) * table(i + 3, j - 3) * table(i - 1, j + 1) = k * k * k * k _
                                            Or table(i + 1, j) * table(i + 2, j) * table(i + 3, j) * table(i - 1, j) = k * k * k * k _
                                            Or table(i + 1, j + 1) * table(i + 2, j + 2) * table(i + 3, j + 3) * table(i - 1, j - 1) = k * k * k * k _
                                            Or table(i, j + 1) * table(i, j + 2) * table(i, j + 3) * table(i, j - 1) = k * k * k * k _
                                            Or table(i - 1, j + 1) * table(i - 2, j + 2) * table(i - 3, j + 3) * table(i + 1, j - 1) = k * k * k * k _
                                            Or table(i - 2, j) * table(i - 1, j) * table(i + 1, j) * table(i + 2, j) = k * k * k * k _
                                            Or table(i - 1, j - 1) * table(i - 2, j - 2) * table(i + 1, j + 1) * table(i - 2, j - 2) = k * k * k * k _
                                            Or table(i, j - 2) * table(i, j - 1) * table(i, j + 1) * table(i, j + 2) = k * k * k * k _
                                            Or table(i + 1, j - 1) * table(i + 2, j - 2) * table(i - 1, j + 1) * table(i - 2, j + 2) = k * k * k * k _
                                        ) Then wantfive = True
                                       
End Function
Private Function wantfour(i, j, k) As Boolean      '定式2’
If table(i, j) = 0 And ((table(i - 3, j) = 0 And table(i + 2, j) = 0 And table(i - 2, j) * table(i - 1, j) * table(i + 1, j) = k * k * k) _
                                          Or (table(i - 3, j - 3) = 0 And table(i + 2, j + 2) = 0 And table(i - 2, j - 2) * table(i - 1, j - 1) * table(i + 1, j + 1) = k * k * k) _
                                          Or (table(i, j - 3) = 0 And table(i, j + 2) = 0 And table(i, j - 2) * table(i, j - 1) * table(i, j + 1) = k * k * k) _
                                          Or (table(i + 3, j - 3) = 0 And table(i - 2, j + 2) = 0 And table(i + 2, j - 2) * table(i + 1, j - 1) * table(i - 1, j + 1) = k * k * k) _
                                          Or (table(i + 3, j) = 0 And table(i - 2, j) = 0 And table(i + 2, j) * table(i + 1, j) * table(i - 1, j) = k * k * k) _
                                          Or (table(i + 3, j + 3) = 0 And table(i - 2, j - 2) = 0 And table(i + 2, j + 2) * table(i + 1, j + 1) * table(i - 1, j - 1) = k * k * k) _
                                          Or (table(i, j + 3) = 0 And table(i, j - 2) = 0 And table(i, j + 1) * table(i, j + 2) * table(i, j - 1) = k * k * k) _
                                          Or (table(i - 3, j + 3) = 0 And table(i + 2, j - 2) = 0 And table(i - 2, j + 2) * table(i - 1, j + 1) * table(i + 1, j - 1) = k * k * k) _
                                        ) Then wantfour = True
                                                                                     
  End Function
  Private Function wantfour1(i, j, k) As Boolean      '定式3’
  Dim a(0 To 7)     As Single
  Dim n   As Single
  a(0) = table(i - 3, j) * table(i - 2, j) * table(i - 1, j)
  a(1) = table(i - 3, j - 3) * table(i - 2, j - 2) * table(i - 1, j - 1)
  a(2) = table(i, j - 3) * table(i, j - 2) * table(i, j - 1)
  a(3) = table(i + 3, j - 3) * table(i + 2, j - 2) * table(i + 1, j - 1)
  a(4) = table(i + 3, j) * table(i + 2, j) * table(i + 1, j)
  a(5) = table(i + 1, j + 1) * table(i + 2, j + 2) * table(i + 3, j + 3)
  a(6) = table(i, j + 1) * table(i, j + 2) * table(i, j + 3)
  a(7) = table(i - 1, j + 1) * table(i - 2, j + 2) * table(i - 3, j + 3)
  Dim b(0 To 7)     As Single
  b(0) = table(i + 1, j)
  b(1) = table(i + 1, j + 1)
  b(2) = table(i, j + 1)
  b(3) = table(i - 1, j + 1)
  b(4) = table(i - 1, j)
  b(5) = table(i - 1, j - 1)
  b(6) = table(i, j - 1)
  b(7) = table(i + 1, j - 1)
  For n = 0 To 7
  If table(i, j) = 0 And b(n) = 0 And a(n) = k * k * k Then
    wantfour1 = True
  End If
  Next n
   
  End Function
Private Function want231(i, j, k) As Boolean      '定式4’
Dim a(0 To 7)     As Single
  a(0) = table(i - 2, j) * table(i - 1, j)
  a(1) = table(i - 2, j - 2) * table(i - 1, j - 1)
  a(2) = table(i, j - 2) * table(i, j - 1)
  a(3) = table(i + 2, j - 2) * table(i + 1, j - 1)
  a(4) = table(i + 1, j) * table(i + 2, j)
  a(5) = table(i + 1, j + 1) * table(i + 2, j + 2)
  a(6) = table(i, j + 1) * table(i, j + 2)
  a(7) = table(i - 1, j + 1) * table(i - 2, j + 2)

    If table(i, j) = 0 And ((table(i - 3, j) <> 3 - k And table(i - 3, j - 3) <> 3 - k And a(0) * a(1) = k * k * k * k) _
                                          Or (table(i - 3, j) <> 3 - k And table(i, j - 3) <> 3 - k And a(0) * a(2) = k * k * k * k) _
                                          Or (table(i - 3, j) <> 3 - k And table(i + 3, j - 3) <> 3 - k And a(0) * a(3) = k * k * k * k) _
                                          Or (table(i - 3, j) <> 3 - k And table(i + 3, j + 3) <> 3 - k And a(0) * a(5) = k * k * k * k) _
                                          Or (table(i - 3, j) <> 3 - k And table(i, j + 3) <> 3 - k And a(0) * a(6) = k * k * k * k) _
                                          Or (table(i - 3, j) <> 3 - k And table(i - 3, j + 3) <> 3 - k And a(0) * a(7) = k * k * k * k) _
                                          Or (table(i - 3, j - 3) <> 3 - k And table(i, j - 3) <> 3 - k And a(1) * a(2) = k * k * k * k) _
                                          Or (table(i - 3, j - 3) <> 3 - k And table(i + 3, j - 3) <> 3 - k And a(1) * a(3) = k * k * k * k) _
                                          Or (table(i - 3, j - 3) <> 3 - k And table(i + 3, j) <> 3 - k And a(1) * a(4) = k * k * k * k) _
                                          Or (table(i - 3, j - 3) <> 3 - k And table(i, j + 3) <> 3 - k And a(1) * a(6) = k * k * k * k) _
                                          Or (table(i - 3, j - 3) <> 3 - k And table(i - 3, j + 3) <> 3 - k And a(1) * a(7) = k * k * k * k) _
                                          Or (table(i, j - 3) <> 3 - k And table(i + 3, j - 3) <> 3 - k And a(2) * a(3) = k * k * k * k) _
                                          Or (table(i, j - 3) <> 3 - k And table(i + 3, j) <> 3 - k And a(2) * a(4) = k * k * k * k) _
                                          Or (table(i, j - 3) <> 3 - k And table(i + 3, j + 3) <> 3 - k And a(2) * a(5) = k * k * k * k) _
                                          Or (table(i, j - 3) <> 3 - k And table(i - 3, j + 3) <> 3 - k And a(2) * a(7) = k * k * k * k) _
                                          Or (table(i + 3, j - 3) <> 3 - k And table(i + 3, j) <> 3 - k And a(3) * a(4) = k * k * k * k) _
                                          Or (table(i + 3, j - 3) <> 3 - k And table(i + 3, j + 3) <> 3 - k And a(3) * a(5) = k * k * k * k) _
                                          Or (table(i + 3, j - 3) <> 3 - k And table(i, j + 3) <> 3 - k And a(3) * a(6) = k * k * k * k) _
                                          Or (table(i + 3, j) <> 3 - k And table(i + 3, j + 3) <> 3 - k And a(4) * a(5) = k * k * k * k) _
                                          Or (table(i + 3, j) <> 3 - k And table(i, j + 3) <> 3 - k And a(4) * a(6) = k * k * k * k) _
                                          Or (table(i + 3, j) <> 3 - k And table(i - 3, j + 3) <> 3 - k And a(4) * a(7) = k * k * k * k) _
                                          Or (table(i + 3, j + 3) <> 3 - k And table(i, j + 3) <> 3 - k And a(5) * a(6) = k * k * k * k) _
                                          Or (table(i + 3, j + 3) <> 3 - k And table(i - 3, j + 3) <> 3 - k And a(5) * a(7) = k * k * k * k) _
                                          Or (table(i, j + 3) <> 3 - k And table(i - 3, j + 3) <> 3 - k And a(6) * a(7) = k * k * k * k) _
                                          ) Then want231 = True
  End Function
  Private Function want232(i, j, k) As Boolean      '定式5’
  Dim b(0 To 3)     As Single
  b(0) = table(i - 1, j) * table(i + 1, j)
  b(1) = table(i - 1, j - 1) * table(i + 1, j + 1)
  b(2) = table(i, j - 1) * table(i, j + 1)
  b(3) = table(i + 1, j - 1) * table(i - 1, j + 1)
 
    If table(i, j) = 0 And ((table(i - 2, j) <> 3 - k And table(i + 2, j) <> 3 - k And table(i - 2, j - 2) <> 3 - k And table(i + 2, j + 2) <> 3 - k And b(0) * b(1) = k * k) _
                                        Or (table(i - 2, j) <> 3 - k And table(i + 2, j) <> 3 - k And table(i, j - 2) <> 3 - k And table(i, j + 2) <> 3 - k And b(0) * b(2) = k * k) _
                                        Or (table(i - 2, j) <> 3 - k And table(i + 2, j) <> 3 - k And table(i + 2, j - 2) <> 3 - k And table(i - 2, j + 2) <> 3 - k And b(0) * b(3) = k * k) _
                                        Or (table(i - 2, j - 2) <> 3 - k And table(i + 2, j + 2) <> 3 - k And table(i, j - 2) <> 3 - k And table(i, j + 2) <> 3 - k And b(1) * b(2) = k * k) _
                                        Or (table(i - 2, j - 2) <> 3 - k And table(i + 2, j + 2) <> 3 - k And table(i + 2, j - 2) <> 3 - k And table(i - 2, j + 2) <> 3 - k And b(1) * b(3) = k * k) _
                                        Or (table(i, j - 2) <> 3 - k And table(i, j + 2) <> 3 - k And table(i + 2, j - 2) <> 3 - k And table(i - 2, j + 2) <> 3 - k And b(2) * b(3) = k * k) _
  ) Then want232 = True
  End Function
Function want233(i, j, k) As Boolean     '定式6’
  Dim m   As Single
  Dim n   As Single
  Dim b(0 To 7)     As Single
  Dim b1(0 To 7)     As Single
  Dim a(0 To 7)     As Single
  Dim a1(0 To 7)     As Single
  b(0) = table(i - 1, j)
  b(1) = table(i - 1, j - 1)
  b(2) = table(i, j - 1)
  b(3) = table(i + 1, j - 1)
  b(4) = table(i + 1, j)
  b(5) = table(i + 1, j + 1)
  b(6) = table(i, j + 1)
  b(7) = table(i - 1, j + 1)
  b1(0) = table(i - 2, j)
  b1(1) = table(i - 2, j - 2)
  b1(2) = table(i, j - 2)
  b1(3) = table(i + 2, j - 2)
  b1(4) = table(i + 2, j)
  b1(5) = table(i + 2, j + 2)
  b1(6) = table(i, j + 2)
  b1(7) = table(i - 2, j + 2)
  a(0) = table(i - 2, j) * table(i - 1, j)
  a(1) = table(i - 2, j - 2) * table(i - 1, j - 1)
  a(2) = table(i, j - 2) * table(i, j - 1)
  a(3) = table(i + 1, j - 1) * table(i + 2, j - 2)
  a(4) = table(i + 1, j) * table(i + 2, j)
  a(5) = table(i + 1, j + 1) * table(i + 2, j + 2)
  a(6) = table(i, j + 1) * table(i, j + 2)
  a(7) = table(i - 1, j + 1) * table(i - 2, j + 2)
  a1(0) = table(i - 3, j)
  a1(1) = table(i - 3, j - 3)
  a1(2) = table(i, j - 3)
  a1(3) = table(i + 3, j - 3)
  a1(4) = table(i + 3, j)
  a1(5) = table(i + 3, j + 3)
  a1(6) = table(i, j + 3)
  a1(7) = table(i - 3, j + 3)
      For m = 0 To 3
      For n = 0 To 7
      If (b1(m) <> 3 - k And b1(m + 4) <> 3 - k And a1(n) <> 3 - k And b(m) * b(m + 4) = k * k) And n <> m And n <> m + 4 And a(n) = k * k Then
      want233 = True
      End If
      Next n
      Next m
 
End Function
Private Function wantthree(i As Single, j As Single, k As Single) As Boolean            '定式7’
Dim a(0
bb50
To 7)     As Single
Dim n   As Single
a(0) = table(i - 2, j) * table(i - 1, j)
  a(1) = table(i - 2, j - 2) * table(i - 1, j - 1)
  a(2) = table(i, j - 2) * table(i, j - 1)
  a(3) = table(i + 1, j - 1) * table(i + 2, j - 2)
  a(4) = table(i + 1, j) * table(i + 2, j)
  a(5) = table(i + 1, j + 1) * table(i + 2, j + 2)
  a(6) = table(i, j + 1) * table(i, j + 2)
  a(7) = table(i - 1, j + 1) * table(i - 2, j + 2)
For n = 0 To 7
  If table(i, j) = 0 And a(n) = k * k Then
    wantthree = True
    End If
  Next n
End Function

Private Sub comdo()
Dim a   As Single
Dim b   As Single
For a = -5 To 20
For b = -5 To 20
If (a < 0) Or (b < 0) Or (a > 15) Or (b > 15) Then
table(a, b) = 10
End If
  Next b
  Next a
 
    For i = 0 To 15
    For j = 0 To 15
      If comturn = True And wantfive(i, j, 2) = True Then
          Call goes(i, j)
        End If
    Next j
    Next i   '连五子
   
    For i = 0 To 15
      For j = 0 To 15
        If comturn = True And wantfive(i, j, 1) = True Then
        Call goes(i, j)
        End If
      Next j
      Next i   '阻止对方连五子
     
  For i = 0 To 15
  For j = 0 To 15
    If comturn = True And table(i, j) * table(i, j + 1) * table(i, j + 2) = 8 And (table(i, j - 1) = 0 And table(i, j + 3) = 0) Then
          If table(i, j - 2) = 2 Or table(i - 1, j - 1) = 2 Or table(i - 1, j) = 2 Or table(i - 1, j + 1) = 2 Or table(i + 1, j - 1) = 2 Or table(i + 1, j) = 2 Or table(i + 1, j + 1) = 2 Then
        Call goes(i, j - 1)
        Else
        Call goes(i, j + 3)
        End If
  ElseIf comturn = True And table(i, j) * table(i + 1, j) * table(i + 2, j) = 8 And (table(i - 1, j) = 0 And table(i + 3, j)) = 0 Then
        If table(i - 2, j) = 2 Or table(i - 1, j - 1) = 2 Or table(i, j - 1) = 2 Or table(i + 1, j - 1) = 2 Or table(i - 1, j + 1) = 2 Or table(i, j + 1) = 2 Or table(i + 1, j + 1) = 2 Then
        Call goes(i - 1, j)
        Else
        Call goes(i + 3, j)
        End If
  ElseIf comturn = True And table(i, j) * table(i + 1, j + 1) * table(i + 2, j + 2) = 8 And (table(i - 1, j - 1) = 0 And table(i + 3, j + 3) = 0) Then
    If table(i - 2, j - 2) = 2 Or table(i - 1, j) = 2 Or table(i - 1, j + 1) = 2 Or table(i, j - 1) = 2 Or table(i, j + 1) = 2 Or table(i + 1, j - 1) = 2 Or table(i + 1, j) = 2 Then
    Call goes(i - 1, j - 1)
    Else
    Call goes(i + 3, j + 3)
    End If
  ElseIf comturn = True And table(i, j) * table(i - 1, j + 1) * table(i - 2, j + 2) = 8 And (table(i + 1, j - 1) = 0 And table(i - 3, j + 3) = 0) Then
    If table(i + 2, j - 2) = 2 Or table(i - 1, j - 1) = 2 Or table(i, j - 1) = 2 Or table(i - 1, j) = 2 Or table(i + 1, j) = 2 Or table(i + 1, j + 1) = 2 Or table(i, j + 1) = 2 Then
    Call goes(i + 1, j - 1)
    Else
    Call goes(i - 3, j + 3)
    End If
    End If
    Next j
    Next i   '将自己连成四点一线
   
    For i = 0 To 15
    For j = 0 To 15
      If comturn = True And wantfour(i, j, 2) = True Then
      Call goes(i, j)
      End If
    Next j
    Next i   '将自己连成四点一线
   
    For i = 0 To 15
        For j = 0 To 15
        If comturn = True And wantfour1(i, j, 2) = True Then
        Call goes(i, j)
        End If
        Next j
        Next i   '叫吃
       
    For i = 0 To 15
    For j = 0 To 15
      If comturn = True And table(i, j) * table(i, j + 1) * table(i, j + 2) = 1 And (table(i, j - 1) = 0 And table(i, j + 3) = 0) Then
      If table(i, j - 2) = 1 Or table(i - 1, j - 1) = 1 Or table(i - 1, j) = 1 Or table(i - 1, j + 1) = 1 Or table(i + 1, j - 1) = 1 Or table(i + 1, j) = 1 Or table(i + 1, j + 1) = 1 Then
        Call goes(i, j - 1)
        Else
        Call goes(i, j + 3)
        End If
  ElseIf comturn = True And table(i, j) * table(i + 1, j) * table(i + 2, j) = 1 And (table(i - 1, j) = 0 And table(i + 3, j) = 0) Then
    If table(i - 2, j) = 1 Or table(i - 1, j - 1) = 1 Or table(i, j - 1) = 1 Or table(i + 1, j - 1) = 1 Or table(i - 1, j + 1) = 1 Or table(i, j + 1) = 1 Or table(i + 1, j + 1) = 1 Then
        Call goes(i - 1, j)
        Else
        Call goes(i + 3, j)
        End If
    ElseIf comturn = True And table(i, j) * table(i + 1, j + 1) * table(i + 2, j + 2) = 1 And (table(i - 1, j - 1) = 0 And table(i + 3, j + 3) = 0) Then
    If table(i - 2, j - 2) = 1 Or table(i - 1, j) = 1 Or table(i - 1, j + 1) = 1 Or table(i, j - 1) = 1 Or table(i, j + 1) = 1 Or table(i + 1, j - 1) = 1 Or table(i + 1, j) = 1 Then
    Call goes(i - 1, j - 1)
    Else
    Call goes(i + 3, j + 3)
    End If
    ElseIf comturn = True And table(i, j) * table(i - 1, j + 1) * table(i - 2, j + 2) = 1 And (table(i + 1, j - 1) = 0 And table(i - 3, j + 3) = 0) Then
    If table(i + 2, j - 2) = 1 Or table(i - 1, j - 1) = 1 Or table(i, j - 1) = 1 Or table(i - 1, j) = 1 Or table(i + 1, j) = 1 Or table(i + 1, j + 1) = 1 Or table(i, j + 1) = 1 Then
    Call goes(i + 1, j - 1)
    Else
    Call goes(i - 3, j + 3)
    End If
    End If
    Next j
    Next i   '阻止对方四点一线
         
    For i = 0 To 15
    For j = 0 To 15
    If comturn = True And wantfour(i, j, 1) = True Then
    Call goes(i, j)
    End If
    Next j
    Next i   '阻止对方四点一线
   
    For i = 0 To 15
    For j = 0 To 15
    If comturn = True And (want231(i, j, 1) = True _
                                              Or want232(i, j, 1) = True _
                                              Or want233(i, j, 1) = True) Then
    Call goes(i, j)
    End If
    Next j
    Next i   '阻止对方走双飞燕
   
    For i = 0 To 15
    For j = 0 To 15
    If comturn = True And (want231(i, j, 2) = True _
                                                  Or want232(i, j, 2) = True _
                                                  Or want233(i, j, 2) = True) Then
    Call goes(i, j)
    End If
    Next j
    Next i   '走双飞燕
   
       
       
        For i = 0 To 15
        For j = 0 To 15
        If comturn = True And wantfour1(i, j, 1) = True Then
        Call goes(i, j)
        End If
        Next j
        Next i   '防止叫吃
         
  For i = 0 To 15
  For j = 0 To 15
  If comturn = True And wantthree(i, j, 1) = True Then
  Call goes(i, j)
  End If
  Next j
  Next i   '挡对方两子一线的
 
  For i = 0 To 15
  For j = 0 To 15
  If comturn = True And wantthree(i, j, 2) = True Then
  Call goes(i, j)
  End If
  Next j
  Next i   '连自己两点一线的
 
  For i = 0 To 15
  For j = 0 To 15
  If comturn = True And table(i, j) = 0 And (table(i - 1, j) * table(i + 1, j) = 1 _
                                                                              Or table(i - 1, j + 1) * table(i + 1, j + 1) = 1 _
                                                                              Or table(i, j - 1) * table(i, j + 1) = 1 _
                                                                              Or table(i + 1, j - 1) * table(i - 1, j + 1) = 1 _
                                                                              ) Then
                                                                              Call goes(i, j)
  End If
  Next j
  Next i   '断
 
 
  For i = 0 To 15
  For j = 0 To 15
  If comturn = True And table(i, j) = 0 And (table(i - 1, j) * table(i + 1, j) = 4 _
                                                                              Or table(i - 1, j + 1) * table(i + 1, j + 1) = 4 _
                                                                              Or table(i, j - 1) * table(i, j + 1) = 4 _
                                                                              Or table(i + 1, j - 1) * table(i - 1, j + 1) = 4 _
                                                                              ) Then
                                                                              Call goes(i, j)
  End If
  Next j
  Next i   '粘
 
  For i = 0 To 15
  For j = 0 To 15
      If comturn = True And table(i, j) = 1 And (table(i - 1, j - 1) = 0 Or table(i, j - 1) = 0 Or table(i + 1, j - 1) = 0 Or table(i - 1, j) = 0 Or table(i + 1, j) = 0 Or table(i - 1, j + 1) = 0 Or table(i, j + 1) = 0 Or table(i + 1, j + 1) = 0) Then
      If table(i - 1, j - 1) = 0 Then
          Call goes(i - 1, j - 1)
          ElseIf table(i + 1, j + 1) = 0 Then
          Call goes(i + 1, j + 1)
          ElseIf table(i, j - 1) = 0 Then
          Call goes(i, j - 1)
          ElseIf table(i, j + 1) = 0 Then
          Call goes(i, j + 1)
          ElseIf table(i + 1, j - 1) = 0 Then
          Call goes(i + 1, j - 1)
          ElseIf table(i - 1, j + 1) = 0 Then
          Call goes(i - 1, j + 1)
          ElseIf table(i - 1, j) = 0 Then
          Call goes(i - 1, j)
          ElseIf table(i + 1, j) = 0 Then
          Call goes(i + 1, j)
          End If
  End If
  Next j
  Next i   '随意走一步
End Sub

Private Sub Form_Paint()  '以(100,100)为左上角坐标画一个16*16,每格边长为300的棋盘’
Cls
Dim x   As Single
Dim y   As Single
x = 100
y = 100
While x < 4300
  x = x + 300
  Line (x, 100)-(x, 4600)
Wend
While y < 4300
  y = y + 300
  Line (100, y)-(4600, y)
Wend
Line (50, 50)-(50, 4650)
Line (50, 50)-(4650, 50)
Line (50, 4650)-(4650, 4650)
Line (4650, 50)-(4650, 4650)
Line (100, 100)-(4600, 100)
Line (100, 100)-(100, 4600)
Line (4600, 100)-(4600, 4600)
Line (100, 4600)-(4600, 4600)
End Sub

Private Sub 规则_Click()
MsgBox "双方轮流出子，最先五子连成一线者胜"
End Sub

Private Sub 人先_Click()
blackturn = True
whiteturn = False
comable = True
comturn = False
comcolor = RGB(255, 255, 255)
restart
End Sub

Private Sub 机先_Click()
blackturn = False
whiteturn = True
comable = True
comturn = True
comcolor = RGB(0, 0, 0)
restart
End Sub