VB梯形图的编辑和解释

dragon045 (2009-4-12 16:19:00)

[i=s] 本帖最后由 dragon045 于 2009-4-12 16:24 编辑

附件上传失败啊!晚上再试

dragon045 (2009-4-12 16:42:37)

直接上代码
《登陆界面的代码》
Private Sub cmdCancel_Click()
Me.Hide
End
End Sub

Private Sub cmdOK_Click()
'检查正确的密码
If (txtUserName = "admin") And (txtPassword = "txtbjhjs") Then
      MainForm.Show
      Me.Hide
Else
      MsgBox "无效的密码，请重试!", , "登录"
      txtPassword.SetFocus
      txtPassword.Text = ""
End If
End Sub

《主界面代码》
Dim X As String                                     '用于临时存储元件名

Dim S As String                                     '用于临时存储语句表

Dim I, J, A, B, C As Integer                               '用语临时局部变量

Dim p As Integer                                  '用于输出"━（  ）━┫"时记录连续"━"是从何处开始加的

Dim M As Integer                                     '用于记录前进的步数,用于后退时的判断
Dim Z As Integer                                     '用于跟踪上一步前进的步数,用于后退时的判断

Dim sizeI, sizeJ, k, N As Integer                      '全局变量(sizeI, sizeJ)用于记录数组当前位置，
                                                   'K 用于记录输入器件的索引值
                                                   'N 用于跟踪上一步前进的输入器件的索引值,用于后退时的判断
Dim Matrix(1 To 260, 0 To 72) As String

Dim Arr(1 To 260) As Integer                      '用于存储每行中元件长为5个字节的元件结束时的下一位横坐标

Dim Visited(1 To 260, 0 To 72) As Integer          '访问标记，Visited(I,J)为 0 表示未曾访问，为 1 表示已经访问

Dim BlockVisited(1 To 260, 0 To 72) As Integer    '访问标记，BlockVisited(I,J)为 0 ANB 或 ORB 表示未曾访问，为 1 表示已经访问

Private Sub Form_Activate()
For I = 1 To 260
For J = 0 To 72
      Matrix(I, J) = "  "                         '对Matrix(I, J)矩阵进行初始化
      Visited(I, J) = 0
      BlockVisited(I, J) = 0
Next J
Arr(I) = 0                                        '对Arr()数组进行初始化
  Next I

  Call Fresh                                        '刷新图片

End Sub

Private Sub Form_Load()
  sizeI = 2                                        '初始化
  sizeJ = 1
  S = ""
  M = 5
  k = 0
  Z = 0
  N = 0
  p = 0
  Command1.Enabled = True
  Command2.Enabled = True
  Command3.Enabled = True
  Command4.Enabled = True
  Command5.Enabled = False
  Command6.Enabled = False
  Command7.Enabled = False
  Command8.Enabled = False
  Command9.Enabled = False
  Command10.Enabled = False
  Command11.Enabled = False
  Command12.Enabled = False
  Command13.Enabled = False

  Command15.Enabled = False
  Command16.Enabled = False

  Command18.Enabled = False
  Command19.Enabled = False

  Command21.Enabled = False
  Command22.Enabled = True

End Sub

Public Sub Fresh()                      ' 自定义过程
  Picture1.Cls
  For I = 1 To sizeI
For J = 0 To 72
      Picture1.Print Matrix(I, J);

Next J
Picture1.Print                               '换行

  Next I
End Sub
Public Sub Procedure(I As Integer, J As Integer) ' 自定义递归过程
If Visited(I, J) = 0 Then
   If I = sizeI And J = sizeJ Then
      S = S & "END" & Chr(13) & Chr(10)
   End If
   If J = Arr(I) Then
      Call OUT(I, J)

      While Matrix(I + 2, 56) = "┃"
               I = I + 2
      Wend

      If I <= sizeI And Matrix(I + 2, 56) = "┫" Then
         I = I + 2
         J = Arr(I)
         While (J > 5) And (Matrix(I, J - 1) = "┳" Or Matrix(I, J - 1) = "━")
            J = J - 5
         Wend
         Call Procedure(I, J)
      Else
         Call Procedure(I, 1)
      End If
   End If

   If (I = 2 And J = 1) Then
      Call LDorLDI(I, J)
      If Matrix(I, J + 4) = "━" Then
         Call Procedure(I, J + 5)
      ElseIf Matrix(I, J + 4) = "┳" Then
         I = I + 2
         While Matrix(I, J) = "┃"
               I = I + 2
         Wend
         Call Procedure(I, J)
      End If
   End If

   If (I = 2 And J > 1 And J < Arr(I)) Then
      If Matrix(I, J - 1) = "━" Then
         Call ANDorANI(I, J)
         If Matrix(I, J + 4) = "┳" Then
               A = I
               I = I + 2
               While (Matrix(I, J + 4) = "┃" Or Matrix(I, J + 4) = "┣")
                  I = I + 2
               Wend
               If Matrix(I, J + 4) = "┛" Or Matrix(I, J + 4) = "┻" Or Matrix(I, J + 4) = "╋" Or Matrix(I, J + 4) = "┫" Then

                  While (J > 5 And (Matrix(I, J - 1) = "━" Or Matrix(I, J - 1) = "┳"))
                        J = J - 5
                  Wend
                  Call Procedure(I, J)
               ElseIf Matrix(I, J + 4) = "┗" Then
                  I = A
                  Call Procedure(I, J + 5)
               End If

         Else
            Call Procedure(I, J + 5)
         End If
      Else       'Matrix(I, J - 1) = "┳"(其中 I=2)
         If Matrix(I, J + 4) = "━" Then
               B = J + 5
               While Matrix(I, B - 1) = "━" And B < Arr(I)
                     B = B + 5
               Wend
               If Matrix(I, B - 1) = "━" Then

                  Call ANDorANI(I, J)
                  Call Procedure(I, J + 5)
               Else
                  A = I
                  I = I + 2
                  While (Matrix(I, J - 1) = "┃" Or Matrix(I, J - 1) = "┫")
                        I = I + 2
                  Wend
                  If Matrix(I, J - 1) = "┛" Then
                     I = A
                     Call ANDorANI(I, J)
                     Call Procedure(I, J + 5)
                  Else
                     I = A
                     Call LDorLDI(I, J)

                     Call Procedure(I, J + 5)

                  End If
               End If
         Else       'Matrix(I, J + 4) = "┳"
               A = I
               I = I + 2
               While (Matrix(I, J - 1) = "┫" Or Matrix(I, J - 1) = "┃")
                  I = I + 2
               Wend
               If Matrix(I, J - 1) <> "┛" Then
                  C = I
                  I = A
                  Call LDorLDI(I, J)
                  I = C
                  Call Procedure(I, J)
               Else
                  I = A
                  J = J
                  Call ANDorANI(I, J)
                  I = A + 2
                  J = J + 5
                  While (Matrix(I, J - 1) = "┃" Or Matrix(I, J - 1) = "┣")
                        I = I + 2
                  Wend
                  If Matrix(I, J - 1) = "┛" Or Matrix(I, J - 1) = "┻" Or Matrix(I, J - 1) = "╋" Or Matrix(I, J - 1) = "┫" Then
                     J = J - 5
                     While (Matrix(I, J - 1) = "━" Or Matrix(I, J - 1) = "┳")
                           J = J - 5
                     Wend
                     Call Procedure(I, J)
                  End If
               End If
         End If
      End If
   End If

   If (I > 2 And J = 1) Then '处理非第一行,第一列元件
            Select Case Matrix(I, J + 4)
                  Case "┫", "╋"
                        Call ORorORI(I, J)
                        Call Procedure(I + 2, J)
                  Case "┣", "┃"
                        Call Procedure(I + 2, J)
                  Case "━"
                        If Matrix(I, J + 6) <> "━" Then
                           Call LDorLDI(I, J)
                        Else                '其后没有元件了
                           B = J
                           J = J + 5
                           While (Matrix(I, J - 1) = "━" And J < (Arr(I)))
                                 J = J + 5
                           Wend
                           If Matrix(I, J - 1) = "━" Then
                              J = B
                              Call LDorLDI(I, J)
                           ElseIf Matrix(I, J - 1) = "┛" Or Matrix(I, J - 1) = "┻" Or Matrix(I, J - 1) = "╋" Or Matrix(I, J - 1) = "┫" Then
                              J = B
                              Call ORorORI(I, J)
                           End If
                        End If
                        Call Procedure(I, J + 5)

                  Case "┳"
                        Call LDorLDI(I, J)
                        Call Procedure(I + 2, J)
                  Case "┻", "┛"
                        Call ORorORI(I, J)

                        I = I - 2
                        While (Matrix(I, J + 4) <> "┳")
                              I = I - 2
                        Wend
                        Call Procedure(I, J + 5)

            End Select
   End If

   If (I > 2 And J > 5 And J < Arr(I)) Then             '处理非第一行,非第一列元件
      If Matrix(I, J - 1) = "┳" Then
         If Matrix(I, J + 4) = "┳" Then
            A = I
            I = I + 2
            While (Matrix(I, J - 1) = "┫" Or Matrix(I, J - 1) = "┃")
                  I = I + 2
            Wend
            If Matrix(I, J - 1) = "┻" Or Matrix(I, J - 1) = "╋" Then
               I = A
               Call LDorLDI(I, J)
               Call Procedure(I + 2, J)
            ElseIf Matrix(I, J - 1) = "┛" Then
               I = A
               Call ANDorANI(I, J)
               I = I + 2
               While (Matrix(I, J + 4) = "┣" Or Matrix(I, J + 4) = "┃")
                     I = I + 2
               Wend
               If Matrix(I, J + 4) = "┛" Or Matrix(I, J + 4) = "┻" Or Matrix(I, J + 4) = "╋" Or Matrix(I, J + 4) = "┫" Then

                  While (J > 5) And (Matrix(I, J - 1) = "┳" Or Matrix(I, J - 1) = "━")
                        J = J - 5
                  Wend
                  Call Procedure(I, J)
               Else
                  I = A
                  Call Procedure(I, J + 5)
               End If
            End If
         ElseIf Matrix(I, J + 4) = "━" Then
            If Matrix(I, J + 7) = "━" Then
               Call ANDorANI(I, J)
            Else
               B = J
               J = J + 5
               While (Matrix(I, J + 4) = "━" And J < (Arr(I)))
                     J = J + 5
               Wend
               If Matrix(I, J + 4) <> "━" Then
                  J = B
                  Call LDorLDI(I, J)
               Else
                  J = B
                  Call ANDorANI(I, J)
               End If
            End If
            Call Procedure(I, J + 5)
         ElseIf Matrix(I, J + 4) = "┫" Or Matrix(I, J + 4) = "╋" Then
            A = I
            I = I + 2
            While (Matrix(I, J - 1) = "┫" Or Matrix(I, J - 1) = "┃")
                  I = I + 2
            Wend
            If Matrix(I, J - 1) = "┻" Or Matrix(I, J - 1) = "╋" Then
               I = A
               Call LDorLDI(I, J)
               Call Procedure(I + 2, J)
            ElseIf Matrix(I, J - 1) = "┛" Then
               I = A
               Call ANDorANI(I, J)
               I = I + 2
               While (Matrix(I, J + 4) = "┣" Or Matrix(I, J + 4) = "┃")
                     I = I + 2
               Wend
               If Matrix(I, J + 4) = "┛" Or Matrix(I, J + 4) = "┻" Or Matrix(I, J + 4) = "╋" Or Matrix(I, J + 4) = "┫" Then

                  While (J > 5) And (Matrix(I, J - 1) = "┳" Or Matrix(I, J - 1) = "━")
                        J = J - 5
                  Wend
                  Call Procedure(I, J)
               Else
                  I = A - 2
                  While Matrix(I, J + 4) <> "┳" And (Matrix(I, J + 4) = "┃" Or Matrix(I, J + 4) = "┫")
                        I = I - 2
                  Wend
                  Call Procedure(I, J + 5)
               End If
            End If
         End If
      End If
      If Matrix(I, J - 1) = "━" Then
            If Matrix(I, J + 2) <> "━" Then

               Call ANDorANI(I, J)

            End If
            Select Case Matrix(I, J + 4)
                  Case "━"
                        Call Procedure(I, J + 5)
                  Case "┳"
                        A = I
                           I = I + 2
                           While (Matrix(I, J + 4) = "┣" Or Matrix(I, J + 4) = "┃")
                              I = I + 2
                           Wend
                           If Matrix(I, J + 4) = "┛" Or Matrix(I, J + 4) = "┻" Or Matrix(I, J + 4) = "╋" Or Matrix(I, J + 4) = "┫" Then

                              While (J > 5) And (Matrix(I, J - 1) = "┳" Or Matrix(I, J - 1) = "━")
                                 J = J - 5
                              Wend
                              Call Procedure(I, J)
                           Else
                              I = A
                              Call Procedure(I, J + 5)
                           End If
                  Case "┫", "╋"
                        If Matrix(I, J + 2) <> "━" Then
                           Call ORB(I, J + 5, I - 2, J + 5, I, J, 0)
                        End If
                        I = I + 2
                        While (Matrix(I, J + 4) = "┣" Or Matrix(I, J + 4) = "┃")
                              I = I + 2
                        Wend
                        If Matrix(I, J + 4) = "┛" Or Matrix(I, J + 4) = "┻" Or Matrix(I, J + 4) = "╋" Or Matrix(I, J + 4) = "┫" Then

                           While (J > 5) And (Matrix(I, J - 1) = "┳" Or Matrix(I, J - 1) = "━")
                              J = J - 5
                           Wend
                           Call Procedure(I, J)
                        End If
                  Case "┻", "┛"
                        A = 0             '求此行上元件个数
                        B = 3
                        While B < J + 5
                              If Matrix(I, B) <> "━" Then
                                 A = A + 1
                              End If
                              B = B + 5
                        Wend
                        If A > 1 Then
                           Call ORB(I, J + 5, I - 2, J + 5, I, J, 0)
                        End If
                        I = I - 2
                        While Matrix(I, J + 4) <> "┳" And (Matrix(I, J + 4) = "┫" Or Matrix(I, J + 4) = "┃" Or Matrix(I, J + 4) = "╋")
                              I = I - 2
                        Wend
                        If Matrix(I, J + 4) = "┳" Then
                           Call Procedure(I, J + 5)
                        End If
            End Select

      End If
      If Matrix(I, J - 1) = "╋" Then
         If Matrix(I, J + 4) = "┻" Or Matrix(I, J + 4) = "┛" Then
            Call ORorORI(I, J)
            I = I - 2
            While (Matrix(I, J - 1) = "┫" Or Matrix(I, J - 1) = "┃")
                     I = I - 2
            Wend
            If Matrix(I, J - 1) = "┳" Then
               Call Procedure(I, J)
            End If
         Else
            B = J
            J = J + 5
            While (Matrix(I, J - 1) = "━" And J <> Arr(I))
                  J = J + 5
            Wend
            If J = Arr(I) Then
               J = B
               Call ANDorANI(I, J)
               Call Procedure(I, J + 5)
            ElseIf Matrix(I, J - 1) = "┳" Or Matrix(I, J - 1) = "╋" Then
                     C = J
                     J = B
                     Call LDorLDI(I, J)
                     If C <> J + 5 Then
                        Call Procedure(I, J + 5)
                     Else
                        I = I + 2
                        While (Matrix(I, J - 1) = "┫" Or Matrix(I, J - 1) = "┃")
                           I = I + 2
                        Wend
                        Call Procedure(I, J)
                     End If
            ElseIf Matrix(I, J - 1) = "┻" Or Matrix(I, J - 1) = "┛" Then
                     C = J
                     J = B
                     If C <> J + 5 Then
                        Call LDorLDI(I, J)
                        Call Procedure(I, J + 5)
                     Else
                        Call ANDorANI(I, J)
                        J = C
                        I = I - 2
                        While (Matrix(I, J - 1) = "┫" Or Matrix(I, J - 1) = "┃" Or Matrix(I, J - 1) = "╋")
                              I = I - 2
                        Wend
                        If Matrix(I, J - 1) = "┳" Then
                           Call Procedure(I, J)
                        End If
                     End If
            End If
         End If
      End If
      If Matrix(I, J - 1) = "┗" Then
            If Matrix(I, J + 4) = "┻" Or Matrix(I, J + 4) = "┛" Then
            Call ORorORI(I, J)

               I = I - 2
               While (Matrix(I, J + 4) = "┫" Or Matrix(I, J + 4) = "┃" Or Matrix(I, J + 4) = "╋")
                     I = I - 2
               Wend
               If Matrix(I, J + 4) = "┳" Then
                  Call Procedure(I, J + 5)
               End If
            ElseIf Matrix(I, J + 4) = "┫" Or Matrix(I, J + 4) = "╋" Then
                  Call ORorORI(I, J)

                  I = I + 2
                  While (Matrix(I, J + 4) = "┣" Or Matrix(I, J + 4) = "┃")
                        I = I + 2
                  Wend
                  While (Matrix(I, J - 1) = "┳" Or Matrix(I, J - 1) = "━")
                     J = J - 5
                  Wend
                  Call Procedure(I, J)
            Else
                        If Matrix(I, J + 6) <> "━" Then
                           Call LDorLDI(I, J)
                        Else                '其后没有元件了
                           B = J
                           J = J + 5
                           While (Matrix(I, J - 1) = "━" And J < (Arr(I)))
                                 J = J + 5
                           Wend
                           If Matrix(I, J - 1) = "━" Then
                              If J = Arr(I) Then
                                 J = B
                                 Call ANDorANI(I, J)
                              Else
                                 Call LDorLDI(I, J)
                              End If
                           ElseIf Matrix(I, J - 1) = "┛" Or Matrix(I, J - 1) = "┻" Or Matrix(I, J - 1) = "╋" Or Matrix(I, J - 1) = "┫" Then
                              J = B
                              Call ORorORI(I, J)
                           End If
                        End If
                        Call Procedure(I, J + 5)


            End If
      End If
      If Matrix(I, J - 1) = "┻" Then
         If Matrix(I, J + 4) = "┻" Or Matrix(I, J + 4) = "┛" Then
            Call ORorORI(I, J)
            Call ANB(I, J + 5, I - 2, J + 5, I, J, 0)
               I = I - 2
               While (Matrix(I, J + 4) = "┫" Or Matrix(I, J + 4) = "┃" Or Matrix(I, J + 4) = "╋")
                     I = I - 2
               Wend
               If Matrix(I, J + 4) = "┳" Then
                  Call Procedure(I, J + 5)
               End If
            ElseIf Matrix(I, J + 4) = "┫" Or Matrix(I, J + 4) = "╋" Then
                  Call ORorORI(I, J)
                  Call ANB(I, J + 5, I - 2, J + 5, I, J, 0)
                  I = I + 2
                  While (Matrix(I, J + 4) = "┣" Or Matrix(I, J + 4) = "┃")
                        I = I + 2
                  Wend
                  While (Matrix(I, J - 1) = "┳" Or Matrix(I, J - 1) = "━")
                     J = J - 5
                  Wend
                  Call Procedure(I, J)
            Else
                        If Matrix(I, J + 6) <> "━" Then
                           Call LDorLDI(I, J)
                        Else                '其后没有元件了
                           B = J
                           J = J + 5
                           While (Matrix(I, J - 1) = "━" And J < (Arr(I)))
                                 J = J + 5
                           Wend
                           If Matrix(I, J - 1) = "━" Then
                              If J = Arr(I) Then
                                 J = B
                                 Call ANDorANI(I, J)
                              Else
                                 Call LDorLDI(I, J)
                              End If
                           ElseIf Matrix(I, J - 1) = "┛" Or Matrix(I, J - 1) = "┻" Or Matrix(I, J - 1) = "╋" Or Matrix(I, J - 1) = "┫" Then
                              J = B
                              Call ORorORI(I, J)
                           End If
                        End If
                        Call Procedure(I, J + 5)


            End If

      End If
      If Matrix(I, J - 1) = "┣" Then
         Select Case Matrix(I, J + 4)
                  Case "━"
                           If Matrix(I, J + 6) <> "━" Then
                              Call LDorLDI(I, J)
                           Else                '其后没有元件了
                              B = J
                              J = J + 5
                              While (Matrix(I, J - 1) = "━" And J < (Arr(I)))
                                    J = J + 5
                              Wend
                              If Matrix(I, J - 1) = "━" Then
                                 If J = Arr(I) Then
                                    J = B
                                    Call ANDorANI(I, J)
                                 Else
                                    Call LDorLDI(I, J)
                                 End If
                              ElseIf Matrix(I, J - 1) = "┛" Or Matrix(I, J - 1) = "┻" Or Matrix(I, J - 1) = "╋" Or Matrix(I, J - 1) = "┫" Then
                                    J = B
                                    Call ORorORI(I, J)
                              End If
                           End If
                           Call Procedure(I, J + 5)
                  Case "┳"
                        Call LDorLDI(I, J)
                        I = I + 2
                        While (Matrix(I, J + 4) = "┣" Or Matrix(I, J + 4) = "┃")
                              I = I + 2
                        Wend
                        If Matrix(I, J + 4) = "┛" Or Matrix(I, J + 4) = "┻" Or Matrix(I, J + 4) = "╋" Or Matrix(I, J + 4) = "┫" Then

                           While (J > 5) And (Matrix(I, J - 1) = "┳" Or Matrix(I, J - 1) = "━")
                              J = J - 5
                           Wend
                           Call Procedure(I, J)
                        End If
                  Case "┫", "╋"
                        Call ORorORI(I, J)
                        I = I + 2
                        While (Matrix(I, J + 4) = "┣" Or Matrix(I, J + 4) = "┃")
                              I = I + 2
                        Wend
                        If Matrix(I, J + 4) = "┛" Or Matrix(I, J + 4) = "┻" Or Matrix(I, J + 4) = "╋" Or Matrix(I, J + 4) = "┫" Then

                           While (J > 5) And (Matrix(I, J - 1) = "┳" Or Matrix(I, J - 1) = "━")
                              J = J - 5
                           Wend
                           Call Procedure(I, J)
                        End If
                  Case "┻", "┛"
                        Call ORorORI(I, J)
                        I = I - 2
                        While Matrix(I, J + 4) <> "┳" And (Matrix(I, J + 4) = "┫" Or Matrix(I, J + 4) = "┃" Or Matrix(I, J + 4) = "╋")
                              I = I - 2
                        Wend
                        If Matrix(I, J + 4) = "┳" Then
                           Call Procedure(I, J + 5)
                        End If
         End Select
      End If
   End If
End If
End Sub

Public Sub LDorLDI(I1 As Integer, J1 As Integer)
  If Visited(I1, J1) = 0 Then
   Visited(I1, J1) = 1
      If Matrix(I1, J1 + 2) = "  " Then
         S = S & "LD  " & Matrix(I1 - 1, J1 + 1) & Chr(13) & Chr(10)
      ElseIf Matrix(I1, J1 + 2) = "╱" Then
         S = S & "LDI " & Matrix(I1 - 1, J1 + 1) & Chr(13) & Chr(10)
      End If
  End If
End Sub

Public Sub ANDorANI(I1 As Integer, J1 As Integer)
  If Visited(I1, J1) = 0 Then
   Visited(I1, J1) = 1
         If Matrix(I1, J1 + 2) = "  " Then
            S = S & "AND " & Matrix(I1 - 1, J1 + 1) & Chr(13) & Chr(10)
         ElseIf Matrix(I1, J1 + 2) = "╱" Then
            S = S & "ANI " & Matrix(I1 - 1, J1 + 1) & Chr(13) & Chr(10)
         End If
  End If
End Sub

Public Sub ORorORI(I1 As Integer, J1 As Integer)
  If Visited(I1, J1) = 0 Then
   Visited(I1, J1) = 1
         If Matrix(I1, J1 + 2) = "  " Then
            S = S & "OR  " & Matrix(I1 - 1, J1 + 1) & Chr(13) & Chr(10)
         ElseIf Matrix(I1, J1 + 2) = "╱" Then
            S = S & "ORI " & Matrix(I1 - 1, J1 + 1) & Chr(13) & Chr(10)
         End If
  End If
End Sub

Public Sub OUT(I1 As Integer, J1 As Integer)
  If Visited(I1, J1) = 0 Then
   Visited(I1, J1) = 1
         S = S & "OUT " & Matrix(I1 - 1, 53) & Chr(13) & Chr(10)
  End If
End Sub

Public Sub ANB(I1 As Integer, J1 As Integer, I2 As Integer, J2 As Integer, I3 As Integer, J3 As Integer, signal As Integer)
If (signal = 1 And BlockVisited(I2, J3) = 0) Or (signal = 0 And BlockVisited(I2 + 2, J3) = 0) Then
If signal = 0 Then
   BlockVisited(I2 + 2, J3) = 1
Else
   BlockVisited(I2, J3) = 1
End If
Dim x1, y1, x2, y2, x3, y3, x4, y4, m1, n1, k(1 To 20), p, flag As Integer
flag = 0
x4 = I3 - 2
y4 = J3
While (Matrix(x4, y4 - 1) = "╋" Or Matrix(x4, y4 - 1) <> "┳")
      x4 = x4 - 2
Wend
y2 = J2
If I2 > x4 And signal = 0 Then
   x2 = I2 - 2
   While x2 > x4 And Matrix(I2, y2 - 1) <> "┳"

         x2 = x2 - 2
   Wend
Else
   x2 = I2
End If
If x2 = x4 Then
   x3 = I3
   y3 = J3
   While (Matrix(x3, y3 - 1) = "━" Or Matrix(x3, y3 - 1) = "┻")
         y3 = y3 - 5
   Wend
   x1 = x2
   y1 = y2 - 5
   While (y1 > y4) And (Matrix(x1, y1 - 1) = "━" And Matrix(x1, y1 - 1) <> "┳")
            y1 = y1 - 5
   Wend
   If y1 = y4 Then
      While (Matrix(x1, y1 - 1) = "━" Or Matrix(x1, y1 - 1) = "┳")
            y1 = y1 - 5
      Wend
      If y1 = y3 Then
         x5 = x1 + 2
         y5 = y1
         If y5 <> 1 Then
            While (Matrix(x5, y5 - 1) = "┃" Or Matrix(x5, y5 - 1) = "┣")
                  x5 = x5 + 2
            Wend
         Else
            While x5 < x3
                  x5 = x5 + 2
            Wend
         End If
         If x5 = x3 Then
            S = S & "ANB " & Chr(13) & Chr(10)
         End If
      End If
   End If
End If
If Matrix(x2, y2 - 1) = "┫" Or Matrix(x2, y2 - 1) = "╋" Then
   a1 = I2: a2 = J2: a3 = I3: a4 = J3
   I2 = x2: J2 = y2: I3 = x3: J3 = y3
   Call ORB(I1, J1, I2, J2, I3, J3, 1)
   I2 = a1: J2 = a2: I3 = a3: J3 = a4
End If
End If
End Sub

Public Sub ORB(I1 As Integer, J1 As Integer, I2 As Integer, J2 As Integer, I3 As Integer, J3 As Integer, signal As Integer)
'(I1,J1)是元件尾部P处坐标，(I2,J2)是竖对P点坐标，(I3,J3)是横对P点坐标，
'signal为0表示是从PROCDURE()调用,为1表示从ANB()调用
If (signal = 1 And BlockVisited(I2, J3) = 0) Or (signal = 0 And BlockVisited(I2 + 2, J3) = 0) Then
If signal = 0 Then
   BlockVisited(I2 + 2, J3) = 1
Else
   BlockVisited(I2, J3) = 1
End If
Dim x1, y1, x2, y2, x3, y3, x4, y4, m1, n1, k(1 To 20), p, flag As Integer
flag = 0
If signal = 1 Then
   x2 = I2 - 2
Else
   x2 = I2
End If
y2 = J2
x3 = I3
y3 = J3
While (Matrix(x3, y3 - 1) = "━")
      y3 = y3 - 5
Wend
While (x2 >= 2)
      x1 = x2
      y1 = y2 - 5
      While (Matrix(x1, y1 - 1) = "━" Or Matrix(x1, y1 - 1) = "┳")
            y1 = y1 - 5
            If y1 = y3 Then
               GoTo p1
            End If
      Wend
      x2 = x2 - 2
Wend
p1: x4 = x1 + 2
y4 = y1
While x4 < x3 And ((Matrix(x4, y4 - 1) = "┃" Or Matrix(x4, y4 - 1) = "┣") Or (y4 = 1))
      x4 = x4 + 2
Wend
If x4 = x3 Then
   For m1 = x1 To x3 Step 2
         For p = 1 To 20  '初始化
            k(p) = 1
         Next p
         p = 1
         For n1 = y1 + 5 To y2 - 5 Step 5
            If (Matrix(m1, n1 - 1) = "━" Or Matrix(m1, n1 - 1) = "┻") Then
               GoTo p2
            Else
               k(p) = 2
               p = p + 1
               GoTo p3
            End If
p2:       Next n1
         If k(p) = 1 Then             '有一行满足要求，则退出
            GoTo p4
         End If
p3: Next m1
p4:    For p = 1 To 20
         If k(p) = 2 Then
            flag = 1
         End If
   Next p
   If flag = 0 Then
      S = S & "ORB " & Chr(13) & Chr(10)
   End If
End If
If Matrix(x3, y3 - 1) = "┻" Then
   a1 = I2: a2 = J2: a3 = I3: a4 = J3
   I2 = x2
   J2 = y2
   I3 = x3
   J3 = y3
   Call ANB(I1, J1, I2, J2, I3, J3, 1)
   I2 = a1: J2 = a2: I3 = a3: J3 = a4
End If
End If
End Sub

Private Sub Command1_Click()
  Command1.Enabled = False
  Command2.Enabled = False
  Command3.Enabled = False
  Command4.Enabled = False
  Command5.Enabled = True
  Command6.Enabled = True
  Command7.Enabled = True
  Command8.Enabled = True
  Command9.Enabled = True
  Command10.Enabled = True
  Command11.Enabled = False
  Command12.Enabled = True
  Command13.Enabled = False

  Command15.Enabled = True
  Command16.Enabled = True

  Command18.Enabled = True
  Command19.Enabled = False

  Command21.Enabled = True
  Command22.Enabled = False
If (sizeJ = 1) Then          '加入梯形图的左边框线
   If sizeI > 2 Then
      I = sizeI - 1
      While Matrix(I, sizeJ) = "  "
            Matrix(I, sizeJ) = "┃"
            I = I - 1
      Wend
   Else
      Matrix(sizeI - 1, sizeJ) = "┃"
   End If
  End If

X = InputBox("请输入器件名称(限三个字符,如 X01 )", "输入器件名称")    '输入器件名称
While (Len(X) <> 3)
      MsgBox "输入器件名称不合要求，请重新输入器件名称"
      X = InputBox("请输入器件名称(限三个字符,如 X01 )", "输入器件名称")
Wend
Arr(sizeI) = Arr(sizeI) + 6
Matrix(sizeI, sizeJ) = "┣"
Matrix(sizeI, sizeJ + 1) = "┫"
Matrix(sizeI, sizeJ + 2) = "  "
Matrix(sizeI, sizeJ + 3) = "┣"
Matrix(sizeI, sizeJ + 4) = "━"

Matrix(sizeI - 1, sizeJ + 1) = X
Matrix(sizeI - 1, sizeJ + 2) = " "
sizeJ = sizeJ + 5
Z = M
M = 5
N = k
k = 1
Call Fresh

End Sub

Private Sub Command2_Click()
  Command1.Enabled = False
  Command2.Enabled = False
  Command3.Enabled = False
  Command4.Enabled = False
  Command5.Enabled = True
  Command6.Enabled = True
  Command7.Enabled = True
  Command8.Enabled = True
  Command9.Enabled = True
  Command10.Enabled = True
  Command11.Enabled = False
  Command12.Enabled = True
  Command13.Enabled = False

  Command15.Enabled = True
  Command16.Enabled = True

  Command18.Enabled = True
  Command19.Enabled = False

  Command21.Enabled = True
  Command22.Enabled = False
  If (sizeJ = 1) Then          '加入梯形图的左边框线
   If sizeI > 2 Then
      I = sizeI - 1
      While Matrix(I, sizeJ) = "  "
            Matrix(I, sizeJ) = "┃"
            I = I - 1
      Wend
   Else
      Matrix(sizeI - 1, sizeJ) = "┃"
   End If
  End If
X = InputBox("请输入器件名称(限三个字符,如 X01 )", "输入器件名称")    '输入器件名称
While (Len(X) <> 3)
      MsgBox "输入器件名称不合要求，请重新输入器件名称"
      X = InputBox("请输入器件名称(限三个字符,如 X01 )", "输入器件名称")
Wend
   Arr(sizeI) = Arr(sizeI) + 6
Matrix(sizeI, sizeJ) = "┣"
Matrix(sizeI, sizeJ + 1) = "┫"
Matrix(sizeI, sizeJ + 2) = "╱"
Matrix(sizeI, sizeJ + 3) = "┣"
Matrix(sizeI, sizeJ + 4) = "━"

Matrix(sizeI - 1, sizeJ + 1) = X
Matrix(sizeI - 1, sizeJ + 2) = " "
sizeJ = sizeJ + 5
Z = M
M = 5
N = k
k = 2
Call Fresh
End Sub

Private Sub Command3_Click()
  Command1.Enabled = False
  Command2.Enabled = False
  Command3.Enabled = False
  Command4.Enabled = False
  Command5.Enabled = True
  Command6.Enabled = True
  Command7.Enabled = True
  Command8.Enabled = True
  Command9.Enabled = True
  Command10.Enabled = True
  Command11.Enabled = False
  Command12.Enabled = True
  Command13.Enabled = False

  Command15.Enabled = True
  Command16.Enabled = True

  Command18.Enabled = True
  Command19.Enabled = False

  Command21.Enabled = True
  Command22.Enabled = False
  If (sizeJ = 1) Then          '加入梯形图的左边框线
   If sizeI > 2 Then
      I = sizeI - 1
      While Matrix(I, sizeJ) = "  "
            Matrix(I, sizeJ) = "┃"
            I = I - 1
      Wend
   Else
      Matrix(sizeI - 1, sizeJ) = "┃"
   End If
  End If
X = InputBox("请输入器件名称(限三个字符,如 X01 )", "输入器件名称")    '输入器件名称
While (Len(X) <> 3)
      MsgBox "输入器件名称不合要求，请重新输入器件名称"
      X = InputBox("请输入器件名称(限三个字符,如 X01 )", "输入器件名称")
Wend
   Arr(sizeI) = Arr(sizeI) + 6
Matrix(sizeI, sizeJ) = "┣"
Matrix(sizeI, sizeJ + 1) = "┫"
Matrix(sizeI, sizeJ + 2) = "  "
Matrix(sizeI, sizeJ + 3) = "┣"
Matrix(sizeI, sizeJ + 4) = "┛"

Matrix(sizeI - 1, sizeJ + 1) = X
Matrix(sizeI - 1, sizeJ + 2) = " "
I = sizeI - 1
While (Matrix(I, sizeJ + 4) = "  ")
      Matrix(I, sizeJ + 4) = "┃"
      I = I - 1
Wend
If Matrix(I, sizeJ + 4) = "━" Then
   Matrix(I, sizeJ + 4) = "┳"
ElseIf Matrix(I, sizeJ + 4) = "┻" Then
   Matrix(I, sizeJ + 4) = "╋"
ElseIf Matrix(I, sizeJ + 4) = "┛" Then
   Matrix(I, sizeJ + 4) = "┫"
ElseIf Matrix(I, sizeJ + 4) = "┗" Then
   Matrix(I, sizeJ + 4) = "┣"
End If
sizeJ = sizeJ + 5
Z = M
M = 5
N = k
k = 3
Call Fresh
End Sub

Private Sub Command4_Click()
  Command1.Enabled = False
  Command2.Enabled = False
  Command3.Enabled = False
  Command4.Enabled = False
  Command5.Enabled = True
  Command6.Enabled = True
  Command7.Enabled = True
  Command8.Enabled = True
  Command9.Enabled = True
  Command10.Enabled = True
  Command11.Enabled = False
  Command12.Enabled = True
  Command13.Enabled = False

  Command15.Enabled = True
  Command16.Enabled = True

  Command18.Enabled = True
  Command19.Enabled = False

  Command21.Enabled = True
  Command22.Enabled = False
  If (sizeJ = 1) Then          '加入梯形图的左边框线
   If sizeI > 2 Then
      I = sizeI - 1
      While Matrix(I, sizeJ) = "  "
            Matrix(I, sizeJ) = "┃"
            I = I - 1
      Wend
   Else
      Matrix(sizeI - 1, sizeJ) = "┃"
   End If
  End If
X = InputBox("请输入器件名称(限三个字符,如 X01 )", "输入器件名称")    '输入器件名称
While (Len(X) <> 3)
      MsgBox "输入器件名称不合要求，请重新输入器件名称"
      X = InputBox("请输入器件名称(限三个字符,如 X01 )", "输入器件名称")
Wend
Arr(sizeI) = Arr(sizeI) + 6
Matrix(sizeI, sizeJ) = "┣"
Matrix(sizeI, sizeJ + 1) = "┫"
Matrix(sizeI, sizeJ + 2) = "╱"
Matrix(sizeI, sizeJ + 3) = "┣"
Matrix(sizeI, sizeJ + 4) = "┛"

Matrix(sizeI - 1, sizeJ + 1) = X
Matrix(sizeI - 1, sizeJ + 2) = " "
I = sizeI - 1
While (Matrix(I, sizeJ + 4) = "  ")
      Matrix(I, sizeJ + 4) = "┃"
      I = I - 1
Wend
If Matrix(I, sizeJ + 4) = "━" Then
   Matrix(I, sizeJ + 4) = "┳"
ElseIf Matrix(I, sizeJ + 4) = "┻" Then
   Matrix(I, sizeJ + 4) = "╋"
ElseIf Matrix(I, sizeJ + 4) = "┛" Then
   Matrix(I, sizeJ + 4) = "┫"
ElseIf Matrix(I, sizeJ + 4) = "┗" Then
   Matrix(I, sizeJ + 4) = "┣"
End If
sizeJ = sizeJ + 5
Z = M
M = 5
N = k
k = 4
Call Fresh
End Sub

Private Sub Command5_Click()
If Command10.Enabled = False Then
   Command10.Enabled = True
End If
If Matrix(sizeI, sizeJ - 1) = "┛" Then
   Matrix(sizeI, sizeJ - 1) = "┻"
ElseIf Matrix(sizeI, sizeJ - 1) = "┫" Then
   Matrix(sizeI, sizeJ - 1) = "╋"
End If
X = InputBox("请输入器件名称(限三个字符,如 X01 )", "输入器件名称")    '输入器件名称
While (Len(X) <> 3)
      MsgBox "输入器件名称不合要求，请重新输入器件名称"
      X = InputBox("请输入器件名称(限三个字符,如 X01 )", "输入器件名称")
Wend
Arr(sizeI) = Arr(sizeI) + 5
Matrix(sizeI, sizeJ) = "━"
Matrix(sizeI, sizeJ + 1) = "┥"
Matrix(sizeI, sizeJ + 2) = "  "
Matrix(sizeI, sizeJ + 3) = "┝"
Matrix(sizeI, sizeJ + 4) = "━"

Matrix(sizeI - 1, sizeJ + 1) = X
Matrix(sizeI - 1, sizeJ + 2) = " "
If k = 18 Then                         '如果前边一个元件是空位键
   Matrix(sizeI, sizeJ - 1) = "┗"
   I = sizeI - 1
   While (Matrix(I, sizeJ - 1) = "  ")
      Matrix(I, sizeJ - 1) = "┃"
      I = I - 1
   Wend
   If Matrix(I, sizeJ - 1) = "━" Then
      Matrix(I, sizeJ - 1) = "┳"
   ElseIf Matrix(I, sizeJ - 1) = "┻" Then
      Matrix(I, sizeJ - 1) = "╋"
   End If
End If
sizeJ = sizeJ + 5
Z = M
M = 5
N = k
k = 5
Call Fresh
Command9.Enabled = True
Command21.Enabled = True
End Sub

Private Sub Command6_Click()
If Command10.Enabled = False Then
   Command10.Enabled = True
End If
If Matrix(sizeI, sizeJ - 1) = "┛" Then
   Matrix(sizeI, sizeJ - 1) = "┻"
ElseIf Matrix(sizeI, sizeJ - 1) = "┫" Then
   Matrix(sizeI, sizeJ - 1) = "╋"
End If
X = InputBox("请输入器件名称(限三个字符,如 X01 )", "输入器件名称")    '输入器件名称
While (Len(X) <> 3)
      MsgBox "输入器件名称不合要求，请重新输入器件名称"
      X = InputBox("请输入器件名称(限三个字符,如 X01 )", "输入器件名称")
Wend
Arr(sizeI) = Arr(sizeI) + 5
Matrix(sizeI, sizeJ) = "━"
Matrix(sizeI, sizeJ + 1) = "┥"
Matrix(sizeI, sizeJ + 2) = "╱"
Matrix(sizeI, sizeJ + 3) = "┝"
Matrix(sizeI, sizeJ + 4) = "━"

Matrix(sizeI - 1, sizeJ + 1) = X
Matrix(sizeI - 1, sizeJ + 2) = " "
If k = 18 Then                         '如果前边一个元件是空位键
   Matrix(sizeI, sizeJ - 1) = "┗"
   I = sizeI - 1
   While (Matrix(I, sizeJ - 1) = "  ")
      Matrix(I, sizeJ - 1) = "┃"
      I = I - 1
   Wend
   If Matrix(I, sizeJ - 1) = "━" Then
      Matrix(I, sizeJ - 1) = "┳"
   ElseIf Matrix(I, sizeJ - 1) = "┻" Then
      Matrix(I, sizeJ - 1) = "╋"
   End If
End If
sizeJ = sizeJ + 5
Z = M
M = 5
N = k
k = 6
Call Fresh
Command9.Enabled = True
Command21.Enabled = True
End Sub

Private Sub Command7_Click()
If Command10.Enabled = False Then
   Command10.Enabled = True
End If
If Matrix(sizeI, sizeJ - 1) = "┛" Then
   Matrix(sizeI, sizeJ - 1) = "┻"
ElseIf Matrix(sizeI, sizeJ - 1) = "┫" Then
   Matrix(sizeI, sizeJ - 1) = "╋"
End If
X = InputBox("请输入器件名称(限三个字符,如 X01 )", "输入器件名称")    '输入器件名称
While (Len(X) <> 3)
      MsgBox "输入器件名称不合要求，请重新输入器件名称"
      X = InputBox("请输入器件名称(限三个字符,如 X01 )", "输入器件名称")
Wend
Arr(sizeI) = Arr(sizeI) + 5
Matrix(sizeI, sizeJ) = "━"
Matrix(sizeI, sizeJ + 1) = "┥"
Matrix(sizeI, sizeJ + 2) = "  "
Matrix(sizeI, sizeJ + 3) = "┝"
Matrix(sizeI, sizeJ + 4) = "┛"

Matrix(sizeI - 1, sizeJ + 1) = X
Matrix(sizeI - 1, sizeJ + 2) = " "
I = sizeI - 1
While (Matrix(I, sizeJ + 4) = "  ")
      Matrix(I, sizeJ + 4) = "┃"
      I = I - 1
Wend
If Matrix(I, sizeJ + 4) = "━" Then
   Matrix(I, sizeJ + 4) = "┳"
ElseIf Matrix(I, sizeJ + 4) = "┻" Then
   Matrix(I, sizeJ + 4) = "╋"
ElseIf Matrix(I, sizeJ + 4) = "┛" Then
   Matrix(I, sizeJ + 4) = "┫"
ElseIf Matrix(I, sizeJ + 4) = "┗" Then
   Matrix(I, sizeJ + 4) = "┣"
End If
If k = 18 Then                         '如果前边一个元件是空位键
   Matrix(sizeI, sizeJ - 1) = "┗"
   I = sizeI - 1
   While (Matrix(I, sizeJ - 1) = "  ")
      Matrix(I, sizeJ - 1) = "┃"
      I = I - 1
   Wend
   If Matrix(I, sizeJ - 1) = "━" Then
      Matrix(I, sizeJ - 1) = "┳"
   ElseIf Matrix(I, sizeJ - 1) = "┻" Then
      Matrix(I, sizeJ - 1) = "╋"
   End If
End If
sizeJ = sizeJ + 5
Z = M
M = 5
N = k
k = 7
Call Fresh
Command9.Enabled = True
Command11.Enabled = True
Command21.Enabled = True
End Sub

Private Sub Command8_Click()
If Command10.Enabled = False Then
   Command10.Enabled = True
End If
If Matrix(sizeI, sizeJ - 1) = "┛" Then
   Matrix(sizeI, sizeJ - 1) = "┻"
ElseIf Matrix(sizeI, sizeJ - 1) = "┫" Then
   Matrix(sizeI, sizeJ - 1) = "╋"
End If
X = InputBox("请输入器件名称(限三个字符,如 X01 )", "输入器件名称")    '输入器件名称
While (Len(X) <> 3)
      MsgBox "输入器件名称不合要求，请重新输入器件名称"
      X = InputBox("请输入器件名称(限三个字符,如 X01 )", "输入器件名称")
Wend
Arr(sizeI) = Arr(sizeI) + 5
Matrix(sizeI, sizeJ) = "━"
Matrix(sizeI, sizeJ + 1) = "┥"
Matrix(sizeI, sizeJ + 2) = "╱"
Matrix(sizeI, sizeJ + 3) = "┝"
Matrix(sizeI, sizeJ + 4) = "┛"

Matrix(sizeI - 1, sizeJ + 1) = X
Matrix(sizeI - 1, sizeJ + 2) = " "
I = sizeI - 1
While (Matrix(I, sizeJ + 4) = "  ")
      Matrix(I, sizeJ + 4) = "┃"
      I = I - 1
Wend
If Matrix(I, sizeJ + 4) = "━" Then
   Matrix(I, sizeJ + 4) = "┳"
ElseIf Matrix(I, sizeJ + 4) = "┻" Then
   Matrix(I, sizeJ + 4) = "╋"
ElseIf Matrix(I, sizeJ + 4) = "┛" Then
   Matrix(I, sizeJ + 4) = "┫"
ElseIf Matrix(I, sizeJ + 4) = "┗" Then
   Matrix(I, sizeJ + 4) = "┣"
End If
If k = 18 Then                         '如果前边一个元件是空位键
   Matrix(sizeI, sizeJ - 1) = "┗"
   I = sizeI - 1
   While (Matrix(I, sizeJ - 1) = "  ")
      Matrix(I, sizeJ - 1) = "┃"
      I = I - 1
   Wend
   If Matrix(I, sizeJ - 1) = "━" Then
      Matrix(I, sizeJ - 1) = "┳"
   ElseIf Matrix(I, sizeJ - 1) = "┻" Then
      Matrix(I, sizeJ - 1) = "╋"
   End If
End If
sizeJ = sizeJ + 5
Z = M
M = 5
N = k
k = 8
Call Fresh
Command9.Enabled = True
Command11.Enabled = True
Command21.Enabled = True
End Sub

Private Sub Command9_Click()
If Command10.Enabled = False Then
   Command10.Enabled = True
End If
Arr(sizeI) = sizeJ
If Matrix(sizeI, sizeJ - 1) = "┛" Then          '处理字符前端
   Matrix(sizeI, sizeJ - 1) = "┻"
ElseIf Matrix(sizeI, sizeJ - 1) = "┫" Then
         Matrix(sizeI, sizeJ - 1) = "╋"
End If

For J = sizeJ To 50
   Matrix(sizeI, J) = "━"                         '自动加横线
Next J
p = sizeJ
sizeJ = 51
X = InputBox("请输入器件名称(限三个字符,如 Y01 )", "输入器件名称")    '输入器件名称
While (Len(X) <> 3)
      MsgBox "输入器件名称不合要求，请重新输入器件名称"
      X = InputBox("请输入器件名称(限三个字符,如 Y01 )", "输入器件名称")
Wend
Matrix(sizeI, sizeJ) = "━"
Matrix(sizeI, sizeJ + 1) = "（"
Matrix(sizeI, sizeJ + 2) = "  "
Matrix(sizeI, sizeJ + 3) = "）"
Matrix(sizeI, sizeJ + 4) = "━"
Matrix(sizeI, sizeJ + 5) = "┫"
sizeJ = sizeJ + 6

Matrix(sizeI - 1, sizeJ - 4) = X
Matrix(sizeI - 1, sizeJ - 3) = " "
If sizeI > 2 Then
I = sizeI - 1
While (Matrix(I, sizeJ - 1) = "  ")
      Matrix(I, sizeJ - 1) = "┃"
      I = I - 1
Wend
Else
Matrix(sizeI - 1, sizeJ - 1) = "┃"
End If
  Z = M
  M = 6
  N = k
  k = 9
  Call Fresh
  Command1.Enabled = False
  Command2.Enabled = False
  Command3.Enabled = False
  Command4.Enabled = False
  Command5.Enabled = False
  Command6.Enabled = False
  Command7.Enabled = False
  Command8.Enabled = False
  Command9.Enabled = False
  Command10.Enabled = True
  Command11.Enabled = True
  Command12.Enabled = True
  Command13.Enabled = True

  Command15.Enabled = False
  Command16.Enabled = False

  Command18.Enabled = False
  Command19.Enabled = False

  Command21.Enabled = False
  Command22.Enabled = False
End Sub

Private Sub Command10_Click()
If M = 5 Then
Select Case k
   Case 1
      Matrix(sizeI, sizeJ - 5) = "  "
      Matrix(sizeI, sizeJ - 4) = "  "
      Matrix(sizeI, sizeJ - 3) = "  "
      Matrix(sizeI, sizeJ - 2) = "  "
      Matrix(sizeI, sizeJ - 1) = "  "

      Matrix(sizeI - 1, sizeJ - 4) = "  "
      Matrix(sizeI - 1, sizeJ - 3) = "  "
      Arr(sizeI) = Arr(sizeI) - 6
   Case 2
      Matrix(sizeI, sizeJ - 5) = "  "
      Matrix(sizeI, sizeJ - 4) = "  "
      Matrix(sizeI, sizeJ - 3) = "  "
      Matrix(sizeI, sizeJ - 2) = "  "
      Matrix(sizeI, sizeJ - 1) = "  "

      Matrix(sizeI - 1, sizeJ - 4) = "  "
      Matrix(sizeI - 1, sizeJ - 3) = "  "
      Arr(sizeI) = Arr(sizeI) - 6
   Case 3
      Matrix(sizeI, sizeJ - 5) = "  "
      Matrix(sizeI, sizeJ - 4) = "  "
      Matrix(sizeI, sizeJ - 3) = "  "
      Matrix(sizeI, sizeJ - 2) = "  "
      Matrix(sizeI, sizeJ - 1) = "  "

      Matrix(sizeI - 1, sizeJ - 4) = "  "
      Matrix(sizeI - 1, sizeJ - 3) = "  "
      I = sizeI - 1
      While (Matrix(I, sizeJ - 1) = "┃")
            Matrix(I, sizeJ - 1) = "  "
            I = I - 1
      Wend

      If Matrix(I, sizeJ - 1) = "┳" Then
         Matrix(I, sizeJ - 1) = "━"
      ElseIf Matrix(I, sizeJ - 1) = "╋" Then
         Matrix(I, sizeJ - 1) = "┻"
      ElseIf Matrix(I, sizeJ - 1) = "┫" Then
         Matrix(I, sizeJ - 1) = "┛"
      End If
      Arr(sizeI) = Arr(sizeI) - 6
   Case 4
      Matrix(sizeI, sizeJ - 5) = "  "
      Matrix(sizeI, sizeJ - 4) = "  "
      Matrix(sizeI, sizeJ - 3) = "  "
      Matrix(sizeI, sizeJ - 2) = "  "
      Matrix(sizeI, sizeJ - 1) = "  "

      Matrix(sizeI - 1, sizeJ - 4) = "  "
      Matrix(sizeI - 1, sizeJ - 3) = "  "
      I = sizeI - 1
      While (Matrix(I, sizeJ - 1) = "┃")
            Matrix(I, sizeJ - 1) = "  "
            I = I - 1
      Wend

      If Matrix(I, sizeJ - 1) = "┳" Then
         Matrix(I, sizeJ - 1) = "━"
      ElseIf Matrix(I, sizeJ - 1) = "╋" Then
         Matrix(I, sizeJ - 1) = "┻"
      ElseIf Matrix(I, sizeJ - 1) = "┫" Then
         Matrix(I, sizeJ - 1) = "┛"
      End If
      Arr(sizeI) = Arr(sizeI) - 6
   Case 5
      Matrix(sizeI, sizeJ - 5) = "  "
      Matrix(sizeI, sizeJ - 4) = "  "
      Matrix(sizeI, sizeJ - 3) = "  "
      Matrix(sizeI, sizeJ - 2) = "  "
      Matrix(sizeI, sizeJ - 1) = "  "

      Matrix(sizeI - 1, sizeJ - 4) = "  "
      Matrix(sizeI - 1, sizeJ - 3) = "  "

      If N = 18 Then                         '如果前边一个元件是空位键
         Matrix(sizeI, sizeJ - 6) = "  "
         I = sizeI - 1
         While (Matrix(I, sizeJ - 6) = "┃")
               Matrix(I, sizeJ - 1) = "  "
               I = I - 1
         Wend
         If Matrix(I, sizeJ - 6) = "┳" Then
               Matrix(I, sizeJ - 6) = "━"
         ElseIf Matrix(I, sizeJ - 6) = "╋" Then
               Matrix(I, sizeJ - 6) = "┻"
         End If
      End If

      If Matrix(sizeI, sizeJ - 6) = "┻" Then
         Matrix(sizeI, sizeJ - 6) = "┛"
      ElseIf Matrix(sizeI, sizeJ - 6) = "╋" Then
         Matrix(sizeI, sizeJ - 6) = "┫"
      End If
      Arr(sizeI) = Arr(sizeI) - 5
   Case 6
      Matrix(sizeI, sizeJ - 5) = "  "
      Matrix(sizeI, sizeJ - 4) = "  "
      Matrix(sizeI, sizeJ - 3) = "  "
      Matrix(sizeI, sizeJ - 2) = "  "
      Matrix(sizeI, sizeJ - 1) = "  "

      Matrix(sizeI - 1, sizeJ - 4) = "  "
      Matrix(sizeI - 1, sizeJ - 3) = "  "
      If N = 18 Then                         '如果前边一个元件是空位键
         Matrix(sizeI, sizeJ - 6) = "  "
         I = sizeI - 1
         While (Matrix(I, sizeJ - 6) = "┃")
               Matrix(I, sizeJ - 1) = "  "
               I = I - 1
         Wend
         If Matrix(I, sizeJ - 6) = "┳" Then
               Matrix(I, sizeJ - 6) = "━"
         ElseIf Matrix(I, sizeJ - 6) = "╋" Then
               Matrix(I, sizeJ - 6) = "┻"
         End If
      End If
      If Matrix(sizeI, sizeJ - 6) = "┻" Then
         Matrix(sizeI, sizeJ - 6) = "┛"
      ElseIf Matrix(sizeI, sizeJ - 6) = "╋" Then
         Matrix(sizeI, sizeJ - 6) = "┫"
      End If

      Arr(sizeI) = Arr(sizeI) - 5
   Case 7
      Matrix(sizeI, sizeJ - 5) = "  "
      Matrix(sizeI, sizeJ - 4) = "  "
      Matrix(sizeI, sizeJ - 3) = "  "
      Matrix(sizeI, sizeJ - 2) = "  "
      Matrix(sizeI, sizeJ - 1) = "  "
      Matrix(sizeI - 1, sizeJ - 4) = "  "
      Matrix(sizeI - 1, sizeJ - 3) = "  "
      If N = 18 Then                         '如果前边一个元件是空位键
         Matrix(sizeI, sizeJ - 6) = "  "
         I = sizeI - 1
         While (Matrix(I, sizeJ - 6) = "┃")
               Matrix(I, sizeJ - 6) = "  "
               I = I - 1
         Wend
         If Matrix(I, sizeJ - 6) = "┳" Then
               Matrix(I, sizeJ - 6) = "━"
         ElseIf Matrix(I, sizeJ - 6) = "╋" Then
               Matrix(I, sizeJ - 6) = "┻"
         End If
      End If
      If Matrix(sizeI, sizeJ - 6) = "┻" Then
         Matrix(sizeI, sizeJ - 6) = "┛"
      ElseIf Matrix(sizeI, sizeJ - 6) = "╋" Then
         Matrix(sizeI, sizeJ - 6) = "┫"
      End If

      I = sizeI - 1
      While (Matrix(I, sizeJ - 1) = "┃")
            Matrix(I, sizeJ - 1) = "  "
            I = I - 1
      Wend

      If Matrix(I, sizeJ - 1) = "┳" Then
         Matrix(I, sizeJ - 1) = "━"
      ElseIf Matrix(I, sizeJ - 1) = "╋" Then
         Matrix(I, sizeJ - 1) = "┻"
      ElseIf Matrix(I, sizeJ - 1) = "┫" Then
         Matrix(I, sizeJ - 1) = "┛"
      End If
      Arr(sizeI) = Arr(sizeI) - 5
   Case 8
      Matrix(sizeI, sizeJ - 5) = "  "
      Matrix(sizeI, sizeJ - 4) = "  "
      Matrix(sizeI, sizeJ - 3) = "  "
      Matrix(sizeI, sizeJ - 2) = "  "
      Matrix(sizeI, sizeJ - 1) = "  "
      Matrix(sizeI - 1, sizeJ - 4) = "  "
      Matrix(sizeI - 1, sizeJ - 3) = "  "
      If N = 18 Then                         '如果前边一个元件是空位键
         Matrix(sizeI, sizeJ - 6) = "  "
         I = sizeI - 1
         While (Matrix(I, sizeJ - 6) = "┃")
               Matrix(I, sizeJ - 6) = "  "
               I = I - 1
         Wend
         If Matrix(I, sizeJ - 6) = "┳" Then
               Matrix(I, sizeJ - 6) = "━"
         ElseIf Matrix(I, sizeJ - 6) = "╋" Then
               Matrix(I, sizeJ - 6) = "┻"
         End If
      End If
      If Matrix(sizeI, sizeJ - 6) = "┻" Then
         Matrix(sizeI, sizeJ - 6) = "┛"
      ElseIf Matrix(sizeI, sizeJ - 6) = "╋" Then
         Matrix(sizeI, sizeJ - 6) = "┫"
      End If

      I = sizeI - 1
      While (Matrix(I, sizeJ - 1) = "┃")
            Matrix(I, sizeJ - 1) = "  "
            I = I - 1
      Wend

      If Matrix(I, sizeJ - 1) = "┳" Then
         Matrix(I, sizeJ - 1) = "━"
      ElseIf Matrix(I, sizeJ - 1) = "╋" Then
         Matrix(I, sizeJ - 1) = "┻"
      ElseIf Matrix(I, sizeJ - 1) = "┫" Then
         Matrix(I, sizeJ - 1) = "┛"
      End If
      Arr(sizeI) = Arr(sizeI) - 5
   Case 15    '上一步为五个"━━━━━"时
      Matrix(sizeI, sizeJ - 5) = "  "
      Matrix(sizeI, sizeJ - 4) = "  "
      Matrix(sizeI, sizeJ - 3) = "  "
      Matrix(sizeI, sizeJ - 2) = "  "
      Matrix(sizeI, sizeJ - 1) = "  "
      Arr(sizeI) = Arr(sizeI) - 5
   Case 16       '上一步为五个"━━━━┛"时
      Matrix(sizeI, sizeJ - 5) = "  "
      Matrix(sizeI, sizeJ - 4) = "  "
      Matrix(sizeI, sizeJ - 3) = "  "
      Matrix(sizeI, sizeJ - 2) = "  "
      Matrix(sizeI, sizeJ - 1) = "  "
      I = sizeI - 1
      While (Matrix(I, sizeJ - 1) = "┃")
            Matrix(I, sizeJ - 1) = "  "
            I = I - 1
      Wend

      If Matrix(I, sizeJ - 1) = "┳" Then
         Matrix(I, sizeJ - 1) = "━"
      ElseIf Matrix(I, sizeJ - 1) = "╋" Then
         Matrix(I, sizeJ - 1) = "┻"
      ElseIf Matrix(I, sizeJ - 1) = "┫" Then
         Matrix(I, sizeJ - 1) = "┛"
      End If
      Arr(sizeI) = Arr(sizeI) - 5
   Case 17
      Matrix(sizeI, sizeJ - 5) = "  "
      Matrix(sizeI, sizeJ - 4) = "  "
      Matrix(sizeI, sizeJ - 3) = "  "
      Matrix(sizeI, sizeJ - 2) = "  "
      Matrix(sizeI, sizeJ - 1) = "  "
      Arr(sizeI) = Arr(sizeI) - 6
   Case 18
      Arr(sizeI) = Arr(sizeI) - 5
End Select
sizeJ = sizeJ - 5

ElseIf M = 6 Then       'M=6时
  If k = 9 Then
Arr(sizeI) = p
For J = p To 50
   Matrix(sizeI, J) = "  "                         '自动将"━"变为"  "
Next J
Matrix(sizeI, sizeJ - 6) = "  "
Matrix(sizeI, sizeJ - 5) = "  "
Matrix(sizeI, sizeJ - 4) = "  "
Matrix(sizeI, sizeJ - 3) = "  "
Matrix(sizeI, sizeJ - 2) = "  "
Matrix(sizeI, sizeJ - 1) = "  "

Matrix(sizeI - 1, sizeJ - 1) = "  "
Matrix(sizeI - 1, sizeJ - 4) = "  "
Matrix(sizeI - 1, sizeJ - 3) = "  "
sizeJ = p
If Matrix(sizeI, sizeJ - 1) = "┻" Then
   Matrix(sizeI, sizeJ - 1) = "┛"
ElseIf Matrix(sizeI, sizeJ - 1) = "╋" Then
         Matrix(sizeI, sizeJ - 1) = "┫"
End If
  ElseIf k = 21 Then
Arr(sizeI) = p
Matrix(sizeI - 2, sizeJ - 6) = "━"
Matrix(sizeI - 1, sizeJ - 6) = "  "
Matrix(sizeI, sizeJ - 6) = "  "
Matrix(sizeI, sizeJ - 5) = "  "
Matrix(sizeI, sizeJ - 4) = "  "
Matrix(sizeI, sizeJ - 3) = "  "
Matrix(sizeI, sizeJ - 2) = "  "
Matrix(sizeI, sizeJ - 1) = "  "

Matrix(sizeI - 1, sizeJ - 1) = "  "
Matrix(sizeI - 1, sizeJ - 4) = "  "
Matrix(sizeI - 1, sizeJ - 3) = "  "
sizeJ = p

  End If
Else       'M=10(即输入（END）后）
      sizeJ = 1       '删除梯形图的左边框线
         If sizeI > 2 Then
            I = sizeI - 1
            While Matrix(I, sizeJ) = "┃"
                  Matrix(I, sizeJ) = "  "
                  I = I - 1
            Wend
         Else
               Matrix(sizeI - 1, sizeJ) = "┃"
         End If

Matrix(sizeI, sizeJ) = "  "
Matrix(sizeI, sizeJ + 1) = "  "
Matrix(sizeI, sizeJ + 2) = "  "
Matrix(sizeI, sizeJ + 3) = "  "
Matrix(sizeI, sizeJ + 4) = "  "
Matrix(sizeI, sizeJ + 5) = "  "
Matrix(sizeI, sizeJ + 6) = "  "
Matrix(sizeI, sizeJ + 7) = "  "
Matrix(sizeI, sizeJ + 8) = "  "
Matrix(sizeI, sizeJ + 9) = "  "
Command22.Enabled = True
End If
M = Z
k = N
Call Fresh
If sizeJ = 1 Then
  Command1.Enabled = True
  Command2.Enabled = True
  Command3.Enabled = True
  Command4.Enabled = True
  Command5.Enabled = False
  Command6.Enabled = False
  Command7.Enabled = False
  Command8.Enabled = False
  Command9.Enabled = False
  Command10.Enabled = False          '规定只允许后退一步
  Command11.Enabled = False
  Command12.Enabled = True
  Command15.Enabled = False
  Command16.Enabled = False
  Command21.Enabled = True
  Command18.Enabled = True
Else
  Command1.Enabled = False
  Command2.Enabled = False
  Command3.Enabled = False
  Command4.Enabled = False
  Command5.Enabled = True
  Command6.Enabled = True
  Command7.Enabled = True
  Command8.Enabled = True
  Command9.Enabled = True
  Command10.Enabled = False          '规定只允许后退一步
  Command11.Enabled = True
  Command12.Enabled = True
  Command15.Enabled = True
  Command16.Enabled = True
  Command21.Enabled = True
  Command18.Enabled = False
End If
End Sub

Private Sub Command11_Click()
  sizeI = sizeI + 2
  sizeJ = 1
  If Matrix(sizeI, 56) = "  " Then
   Matrix(sizeI - 1, 56) = "┃"
   Matrix(sizeI, 56) = "┃"
  End If
  Command1.Enabled = True
  Command2.Enabled = True
  Command3.Enabled = True
  Command4.Enabled = True
  Command5.Enabled = False
  Command6.Enabled = False
  Command7.Enabled = False
  Command8.Enabled = False
  Command9.Enabled = False
  Command10.Enabled = False
  Command11.Enabled = True
  Command12.Enabled = True
  Command13.Enabled = False

  Command15.Enabled = False
  Command16.Enabled = False

  Command18.Enabled = True
  Command19.Enabled = False

  Command21.Enabled = True
  Command22.Enabled = True
  Call Fresh
End Sub

Private Sub Command12_Click()
  Picture1.Cls                                  '清除图片
For I = 1 To 260
For J = 0 To 72
   Matrix(I, J) = "  "                         '对数组进行初始化（即清零）
   Visited(I, J) = 0
   BlockVisited(I, J) = 0
Next J
Arr(I) = 0                                  '对Arr()数组进行初始化
  Next I
  Call Fresh                                  '刷新图片
  sizeI = 2                                        '初始化
  sizeJ = 1
  S = ""
  M = 5
  k = 0
  Z = 0
  N = 0
  p = 0
  Command1.Enabled = True
  Command2.Enabled = True
  Command3.Enabled = True
  Command4.Enabled = True
  Command5.Enabled = False
  Command6.Enabled = False
  Command7.Enabled = False
  Command8.Enabled = False
  Command9.Enabled = False
  Command10.Enabled = False
  Command11.Enabled = False
  Command12.Enabled = False
  Command13.Enabled = True

  Command15.Enabled = False
  Command16.Enabled = False

  Command18.Enabled = False
  Command19.Enabled = False

  Command21.Enabled = False
  Command22.Enabled = True



  Command13.Visible = True
  Command14.Visible = True


  Command19.Visible = False
  Command20.Visible = False
  Text1.Text = ""
End Sub
Private Sub Command13_Click()                      '实现由梯形图向语句表的转化

  Call Procedure(2, 1)
  Text1.Text = S
  Command13.Visible = False
  Command14.Visible = False
  Command19.Visible = True
  Command12.Enabled = True
  Command19.Enabled = True
  Command20.Visible = True
End Sub

Private Sub Command14_Click()
frmAbout.Show
Me.Hide

End Sub

Private Sub Command15_Click()
If Command10.Enabled = False Then
   Command10.Enabled = True
End If
If Matrix(sizeI, sizeJ - 1) = "┛" Then
   Matrix(sizeI, sizeJ - 1) = "┻"
ElseIf Matrix(sizeI, sizeJ - 1) = "┫" Then
   Matrix(sizeI, sizeJ - 1) = "╋"
End If
Arr(sizeI) = Arr(sizeI) + 5
Matrix(sizeI, sizeJ) = "━"
Matrix(sizeI, sizeJ + 1) = "━"
Matrix(sizeI, sizeJ + 2) = "━"
Matrix(sizeI, sizeJ + 3) = "━"
Matrix(sizeI, sizeJ + 4) = "━"
If k = 18 Then                         '如果前边一个元件是空位键
   Matrix(sizeI, sizeJ - 1) = "┗"
   I = sizeI - 1
   While (Matrix(I, sizeJ - 1) = "  ")
      Matrix(I, sizeJ - 1) = "┃"
      I = I - 1
   Wend
   If Matrix(I, sizeJ - 1) = "━" Then
      Matrix(I, sizeJ - 1) = "┳"
   ElseIf Matrix(I, sizeJ - 1) = "┻" Then
      Matrix(I, sizeJ - 1) = "╋"
   End If
End If
sizeJ = sizeJ + 5
Z = M
M = 5
N = k
k = 15
Call Fresh
Command9.Enabled = True
Command21.Enabled = True
End Sub

Private Sub Command16_Click()
If Command10.Enabled = False Then
   Command10.Enabled = True
End If
If Matrix(sizeI, sizeJ - 1) = "┛" Then
   Matrix(sizeI, sizeJ - 1) = "┻"
ElseIf Matrix(sizeI, sizeJ - 1) = "┫" Then
   Matrix(sizeI, sizeJ - 1) = "╋"
End If
Arr(sizeI) = Arr(sizeI) + 5
Matrix(sizeI, sizeJ) = "━"
Matrix(sizeI, sizeJ + 1) = "━"
Matrix(sizeI, sizeJ + 2) = "━"
Matrix(sizeI, sizeJ + 3) = "━"
Matrix(sizeI, sizeJ + 4) = "┛"
I = sizeI - 1
While (Matrix(I, sizeJ + 4) = "  ")
      Matrix(I, sizeJ + 4) = "┃"
      I = I - 1
Wend
If Matrix(I, sizeJ + 4) = "━" Then
   Matrix(I, sizeJ + 4) = "┳"
ElseIf Matrix(I, sizeJ + 4) = "┻" Then
   Matrix(I, sizeJ + 4) = "╋"
ElseIf Matrix(I, sizeJ + 4) = "┛" Then
   Matrix(I, sizeJ + 4) = "┫"
ElseIf Matrix(I, sizeJ + 4) = "┗" Then
   Matrix(I, sizeJ + 4) = "┣"
End If
If k = 18 Then                         '如果前边一个元件是空位键
   Matrix(sizeI, sizeJ - 1) = "┗"
   I = sizeI - 1
   While (Matrix(I, sizeJ - 1) = "  ")
      Matrix(I, sizeJ - 1) = "┃"
      I = I - 1
   Wend
   If Matrix(I, sizeJ - 1) = "━" Then
      Matrix(I, sizeJ - 1) = "┳"
   ElseIf Matrix(I, sizeJ - 1) = "┻" Then
      Matrix(I, sizeJ - 1) = "╋"
   End If
End If
sizeJ = sizeJ + 5
Z = M
M = 5
N = k
k = 16
Call Fresh
Command9.Enabled = True
Command11.Enabled = True
Command21.Enabled = True
End Sub
Private Sub Command17_Click()

Call Fresh

End Sub
Private Sub Command18_Click()
If Command10.Enabled = False Then
   Command10.Enabled = True
End If
If (sizeJ = 1) Then          '加入梯形图的左边框线

      I = sizeI
      While Matrix(I, sizeJ) = "  "
            Matrix(I, sizeJ) = "┃"
            I = I - 1
      Wend
End If
If (sizeJ = 1) Then
   Arr(sizeI) = Arr(sizeI) + 6
Else
   Arr(sizeI) = Arr(sizeI) + 5
End If
sizeJ = sizeJ + 5
Z = M
M = 5
N = k
k = 18
Call Fresh




  Command1.Enabled = False
  Command2.Enabled = False
  Command3.Enabled = False
  Command4.Enabled = False
  Command5.Enabled = True
  Command6.Enabled = True
  Command7.Enabled = True
  Command8.Enabled = True
  Command9.Enabled = False
  Command10.Enabled = True
  Command11.Enabled = True
  Command12.Enabled = True
  Command13.Enabled = False

  Command15.Enabled = True
  Command16.Enabled = True

  Command18.Enabled = True

  Command19.Enabled = False

  Command21.Enabled = True
  Command22.Enabled = False

End Sub

Private Sub Command19_Click() '生成 *.txt 文件
FileNum = FreeFile()
Open "D:\生成的语句表.txt" For Output As #FileNum
Print #FileNum, Text1.Text
Close #FileNum
End Sub

Private Sub Command20_Click()
  frmAbout.Show
  Me.Hide

End Sub

Private Sub Command21_Click()
If Command10.Enabled = False Then
   Command10.Enabled = True
End If
p = sizeJ
sizeJ = 51
Arr(sizeI) = sizeJ
X = InputBox("请输入器件名称(限三个字符,如 Y01 )", "输入器件名称")    '输入器件名称
While (Len(X) <> 3)
      MsgBox "输入器件名称不合要求，请重新输入器件名称"
      X = InputBox("请输入器件名称(限三个字符,如 Y01 )", "输入器件名称")
Wend
Matrix(sizeI - 2, sizeJ) = "┳"
Matrix(sizeI - 1, sizeJ) = "┃"
Matrix(sizeI, sizeJ) = "┗"
Matrix(sizeI, sizeJ + 1) = "（"
Matrix(sizeI, sizeJ + 2) = "  "
Matrix(sizeI, sizeJ + 3) = "）"
Matrix(sizeI, sizeJ + 4) = "━"
Matrix(sizeI, sizeJ + 5) = "┫"
sizeJ = sizeJ + 6

Matrix(sizeI - 1, sizeJ - 4) = X
Matrix(sizeI - 1, sizeJ - 3) = " "
Matrix(sizeI - 1, sizeJ - 1) = "┃"
  Z = M
  M = 6
  N = k
  k = 21
  Call Fresh
  Command1.Enabled = False
  Command2.Enabled = False
  Command3.Enabled = False
  Command4.Enabled = False
  Command5.Enabled = False
  Command6.Enabled = False
  Command7.Enabled = False
  Command8.Enabled = False
  Command9.Enabled = False
  Command10.Enabled = True
  Command11.Enabled = True
  Command12.Enabled = True
  Command13.Enabled = True

  Command15.Enabled = False
  Command16.Enabled = False

  Command18.Enabled = False
  Command19.Enabled = False

  Command21.Enabled = False
  Command22.Enabled = False

End Sub

Private Sub Command22_Click()

  Command1.Enabled = False
  Command2.Enabled = False
  Command3.Enabled = False
  Command4.Enabled = False
  Command5.Enabled = False
  Command6.Enabled = False
  Command7.Enabled = False
  Command8.Enabled = False
  Command9.Enabled = False
  Command10.Enabled = True
  Command11.Enabled = False
  Command12.Enabled = False
  Command13.Enabled = True

  Command15.Enabled = False
  Command16.Enabled = False

  Command18.Enabled = False
  Command19.Enabled = False

  Command21.Enabled = False
  Command22.Enabled = False

  If (sizeJ = 1) Then          '加入梯形图的左边框线
   If sizeI > 2 Then
      I = sizeI - 1
      While Matrix(I, sizeJ) = "  "
            Matrix(I, sizeJ) = "┃"
            I = I - 1
      Wend
   Else
      Matrix(sizeI - 1, sizeJ) = "┃"
   End If
  End If
Matrix(sizeI, sizeJ) = "┣"
Matrix(sizeI, sizeJ + 1) = "━"
Matrix(sizeI, sizeJ + 2) = "━"
Matrix(sizeI, sizeJ + 3) = "━"
Matrix(sizeI, sizeJ + 4) = "（"
Matrix(sizeI, sizeJ + 5) = "E"
Matrix(sizeI, sizeJ + 6) = "N"
Matrix(sizeI, sizeJ + 7) = "D"
Matrix(sizeI, sizeJ + 8) = "）"
Matrix(sizeI, sizeJ + 9) = "    "
  Z = M
  M = 10
  N = k
  k = 22
Call Fresh
End Sub

《关于界面代码》
Option Explicit

' 注册表关键字安全选项...
Const READ_CONTROL = &H20000
Const KEY_QUERY_VALUE = &H1
Const KEY_SET_VALUE = &H2
Const KEY_CREATE_SUB_KEY = &H4
Const KEY_ENUMERATE_SUB_KEYS = &H8
Const KEY_NOTIFY = &H10
Const KEY_CREATE_LINK = &H20
Const KEY_ALL_ACCESS = KEY_QUERY_VALUE + KEY_SET_VALUE + _
                     KEY_CREATE_SUB_KEY + KEY_ENUMERATE_SUB_KEYS + _
                     KEY_NOTIFY + KEY_CREATE_LINK + READ_CONTROL

' 注册表关键字 ROOT 类型...
Const HKEY_LOCAL_MACHINE = &H80000002
Const ERROR_SUCCESS = 0
Const REG_SZ = 1                      ' 独立的空的终结字符串
Const REG_DWORD = 4                   ' 32位数字

Const gREGKEYSYSINFOLOC = "SOFTWARE\Microsoft\Shared Tools Location"
Const gREGVALSYSINFOLOC = "MSINFO"
Const gREGKEYSYSINFO = "SOFTWARE\Microsoft\Shared Tools\MSINFO"
Const gREGVALSYSINFO = "PATH"

Private Declare Function RegOpenKeyEx Lib "advapi32" Alias "RegOpenKeyExA" (ByVal hKey As Long, ByVal lpSubKey As String, ByVal ulOptions As Long, ByVal samDesired As Long, ByRef phkResult As Long) As Long
Private Declare Function RegQueryValueEx Lib "advapi32" Alias "RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal lpReserved As Long, ByRef lpType As Long, ByVal lpData As String, ByRef lpcbData As Long) As Long
Private Declare Function RegCloseKey Lib "advapi32" (ByVal hKey As Long) As Long

Private Sub cmdSysInfo_Click()
  Call StartSysInfo
End Sub

Private Sub cmdOK_Click()
  Unload Me
  End
End Sub

Public Sub StartSysInfo()
On Error GoTo SysInfoErr

Dim rc As Long
Dim SysInfoPath As String

' 试图从注册表中获得系统信息程序的路径及名称...
If GetKeyValue(HKEY_LOCAL_MACHINE, gREGKEYSYSINFO, gREGVALSYSINFO, SysInfoPath) Then
' 试图仅从注册表中获得系统信息程序的路径...
ElseIf GetKeyValue(HKEY_LOCAL_MACHINE, gREGKEYSYSINFOLOC, gREGVALSYSINFOLOC, SysInfoPath) Then
      ' 已知32位文件版本的有效位置
      If (Dir(SysInfoPath & "\MSINFO32.EXE") <> "") Then
         SysInfoPath = SysInfoPath & "\MSINFO32.EXE"

      ' 错误 - 文件不能被找到...
      Else
         GoTo SysInfoErr
      End If
' 错误 - 注册表相应条目不能被找到...
Else
      GoTo SysInfoErr
End If

Call Shell(SysInfoPath, vbNormalFocus)

Exit Sub
SysInfoErr:
MsgBox "此时系统信息不可用", vbOKOnly
End Sub

Public Function GetKeyValue(KeyRoot As Long, KeyName As String, SubKeyRef As String, ByRef KeyVal As String) As Boolean
Dim I As Long                                        ' 循环计数器
Dim rc As Long                                        ' 返回代码
Dim hKey As Long                                     ' 打开的注册表关键字句柄
Dim hDepth As Long                                     '
Dim KeyValType As Long                               ' 注册表关键字数据类型
Dim tmpVal As String                                  ' 注册表关键字值的临时存储器
Dim KeyValSize As Long                               ' 注册表关键自变量的尺寸
'------------------------------------------------------------
' 打开 {HKEY_LOCAL_MACHINE...} 下的 RegKey
'------------------------------------------------------------
rc = RegOpenKeyEx(KeyRoot, KeyName, 0, KEY_ALL_ACCESS, hKey) ' 打开注册表关键字

If (rc <> ERROR_SUCCESS) Then GoTo GetKeyError       ' 处理错误...

tmpVal = String$(1024, 0)                            ' 分配变量空间
KeyValSize = 1024                                     ' 标记变量尺寸

'------------------------------------------------------------
' 检索注册表关键字的值...
'------------------------------------------------------------
rc = RegQueryValueEx(hKey, SubKeyRef, 0, _
                     KeyValType, tmpVal, KeyValSize) ' 获得/创建关键字值

If (rc <> ERROR_SUCCESS) Then GoTo GetKeyError       ' 处理错误

If (Asc(Mid(tmpVal, KeyValSize, 1)) = 0) Then          ' Win95 外接程序空终结字符串...
      tmpVal = Left(tmpVal, KeyValSize - 1)             ' Null 被找到,从字符串中分离出来
Else                                                 ' WinNT 没有空终结字符串...
      tmpVal = Left(tmpVal, KeyValSize)                ' Null 没有被找到, 分离字符串
End If
'------------------------------------------------------------
' 决定转换的关键字的值类型...
'------------------------------------------------------------
Select Case KeyValType                               ' 搜索数据类型...
Case REG_SZ                                           ' 字符串注册关键字数据类型
      KeyVal = tmpVal                                  ' 复制字符串的值
Case REG_DWORD                                        ' 四字节的注册表关键字数据类型
      For I = Len(tmpVal) To 1 Step -1                   ' 将每位进行转换
         KeyVal = KeyVal + Hex(Asc(Mid(tmpVal, I, 1))) ' 生成值字符。 By Char。
      Next
      KeyVal = Format$("&h" + KeyVal)                   ' 转换四字节的字符为字符串
End Select

GetKeyValue = True                                     ' 返回成功
rc = RegCloseKey(hKey)                               ' 关闭注册表关键字
Exit Function                                        ' 退出

GetKeyError:    ' 错误发生后将其清除...
KeyVal = ""                                           ' 设置返回值到空字符串
GetKeyValue = False                                  ' 返回失败
rc = RegCloseKey(hKey)                               ' 关闭注册表关键字
End Function

catwill (2009-4-12 19:03:19)

龙版在刷墙吗？？

dragon045 (2009-4-12 19:29:28)

[local]1[/local]

dragon045 (2009-4-12 19:30:02)

VB梯形图的编辑和解释

dragon045 (2009-4-12 19:30:58)

还是上传不了,文件只有2.8M,网速绝对没有问题的

dragon045 (2009-4-12 19:33:05)

我把它上到网络盘了http://www.400disk.com/down.aspx ... %cd%bd%e2%ca%cd.rar

binglin (2009-4-12 20:23:45)

单个文件大小只能在2M以下才能上传。

dragon045 (2009-4-12 20:42:48)

原来这样啊!以前单个可以16M的啊!

dragon045 (2009-4-12 20:44:07)

试一下

VB梯形图的编辑和解释.part1.rar
(2009-04-12 20:44:07, Size: 1.39 MB, Downloads: 24)

VB梯形图的编辑和解释.part2.rar
(2009-04-12 20:44:07, Size: 1.36 MB, Downloads: 21)

dragon045 (2009-4-12 20:45:23)

这个东东不错啊!把阶梯图转为指令表

binglin (2009-4-12 22:57:46)

龙版主能不能把它的运行效果图发上来让我瞧一瞧?

dragon045 (2009-4-12 23:55:11)

[i=s] 本帖最后由 dragon045 于 2009-4-12 23:59 编辑

不要安装的，直接点梯形图的编辑和解释.exe,
用户名：admin
密码：txtbjhjs

untitled.JPG

dragon045 (2009-4-12 23:57:35)

PLC
阶梯图>>>指令>>>可烧写文件（hex bin)

binglin (2009-4-13 00:02:02)

这个梯形图是用字符实现梯形图的显示，这样就简化了设计。

dragon045 (2009-4-13 00:06:08)

是啊，用字符，比用图形简单多了

qmycy (2009-4-13 04:06:46)

看来要给梯形模块要定义一个类吧，这样以后连接PLC，仿真，注释，plc接点注记名，都好实现。
用字符的，功能要升级，改的代码就多了。
我在界面设计上属于新手，请高手指点一下，要实现上述功能，怎么实现。

binglin (2009-9-16 09:33:10)

qmycy说的梯形模块要定义一个类有道理。

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VB梯形图的编辑和解释

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