例4.13.frm

来自「vb编程+从基础到实践光盘代码」· FRM 代码 · 共 83 行

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   3195
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   ScaleHeight     =   3195
   ScaleWidth      =   4680
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton Command1 
      Caption         =   "Command1"
      Height          =   495
      Left            =   1440
      TabIndex        =   2
      Top             =   2160
      Width           =   1695
   End
   Begin VB.TextBox Txt2 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   15
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   2760
      TabIndex        =   1
      Top             =   840
      Width           =   1215
   End
   Begin VB.TextBox Txt1 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   15
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   600
      TabIndex        =   0
      Top             =   840
      Width           =   1215
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Function mySum2(Operate As Integer, ParamArray var1()) As Integer
    Dim int1 As Integer
    Dim intSum As Integer
    If Operate = 1 Then
        intSum = 0                          '计算连加，变量应初始化为0
        For int1 = LBound(var1) To UBound(var1)
            intSum = intSum + var1(int1)
        Next
        mySum2 = intSum                    '返回连加的计算结果
    Else
        intSum = 1                          '计算连乘，变量应初始化为1
        For int1 = LBound(var1) To UBound(var1)
            intSum = intSum * var1(int1)
        Next
        mySum2 = intSum                    '返回连乘的计算结果
    End If
End Function

Private Sub Command1_Click()
    Dim int1 As Integer, int2 As Integer
    int1 = mySum2(1, 1, 2, 3, 4, 5, 6)
    int2 = mySum2(2, 1, 2, 3, 4, 5, 6)
    Txt1.Text = int1
    Txt2.Text = int2
End Sub