VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "求最大公約數"
   ClientHeight    =   2940
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   ScaleHeight     =   2940
   ScaleWidth      =   4680
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton Command2 
      Caption         =   "關閉"
      BeginProperty Font 
         Name            =   "宋體"
         Size            =   10.5
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   2520
      TabIndex        =   7
      Top             =   2160
      Width           =   1095
   End
   Begin VB.CommandButton Command1 
      Caption         =   "計算"
      BeginProperty Font 
         Name            =   "宋體"
         Size            =   10.5
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   960
      TabIndex        =   6
      Top             =   2160
      Width           =   1095
   End
   Begin VB.TextBox Text3 
      BeginProperty Font 
         Name            =   "宋體"
         Size            =   12
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   2520
      Locked          =   -1  'True
      TabIndex        =   5
      TabStop         =   0   'False
      Top             =   1440
      Width           =   1095
   End
   Begin VB.TextBox Text2 
      BeginProperty Font 
         Name            =   "宋體"
         Size            =   12
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   3360
      TabIndex        =   3
      Top             =   480
      Width           =   1095
   End
   Begin VB.TextBox Text1 
      BeginProperty Font 
         Name            =   "宋體"
         Size            =   12
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   1080
      TabIndex        =   1
      Top             =   480
      Width           =   1095
   End
   Begin VB.Label Label4 
      Caption         =   "最大公約數 ="
      BeginProperty Font 
         Name            =   "宋體"
         Size            =   12
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   840
      TabIndex        =   4
      Top             =   1440
      Width           =   1575
   End
   Begin VB.Label Label2 
      Caption         =   "N ="
      BeginProperty Font 
         Name            =   "宋體"
         Size            =   15
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   2640
      TabIndex        =   2
      Top             =   480
      Width           =   735
   End
   Begin VB.Label Label1 
      Caption         =   "M ="
      BeginProperty Font 
         Name            =   "宋體"
         Size            =   15
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   360
      TabIndex        =   0
      Top             =   480
      Width           =   615
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
'Private Function Divisor(Optional ByVal x As Variant, Optional ByVal y As Variant) As Integer
'Private Function Divisor(x As Integer, y As Integer) As Integer
Private Function divisor(ParamArray n())
'通用函數求最大公約數
    Dim r As Integer
    'If IsMissing(x) Then x = 1
    'If IsMissing(y) Then y = 1
    If UBound(n) = 1 Then
        x = n(0): y = n(1)
    ElseIf UBound(n) = 0 Then
         x = n(0): y = 1
    End If
    r = x Mod y
    Do While r <> 0
        x = y
        y = r
        r = x Mod y
    Loop
    divisor = y
End Function

Private Sub Command2_Click()
'單擊結束按鈕
    End
End Sub

Private Sub Command1_Click()
'單擊計算按鈕
    Dim Result As Integer
    Dim m As Integer, n As Integer
    m = Val(Text1.Text)
    n = Val(Text2.Text)
    If m <> 0 And n <> 0 Then
        'Result = Divisor(m, n)
        Result = divisor((m), (n))
        Text3.Text = Result
    End If
End Sub