form1.frm

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VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   3090
   ClientLeft      =   60
   ClientTop       =   450
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   ScaleHeight     =   3090
   ScaleWidth      =   4680
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton Command1 
      Caption         =   "第1种方法返回函数值"
      Height          =   375
      Left            =   720
      TabIndex        =   1
      Top             =   960
      Width           =   3015
   End
   Begin VB.TextBox Text1 
      Height          =   375
      Left            =   720
      TabIndex        =   0
      Top             =   240
      Width           =   3015
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
'单击命令按钮Command1后的执行代码
Private Sub Command1_Click()
 Dim number1 As Integer
 Dim number2 As Integer
 number1 = 10
 number2 = 20
 '调用带返回值的函数
 Text1.Text = addnumber(number1, number2)
End Sub
'定义带返回值的函数，其返回值类型为Integer
Function addnumber(a As Integer, b As Integer) As Integer
  addnumber = a + b
End Function