例4.5.frm

vb编程+从基础到实践光盘代码

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         =   "按值传递"
      Height          =   495
      Left            =   1680
      TabIndex        =   0
      Top             =   1800
      Width           =   1215
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub Command1_Click()
    int1 = 5                                ' 变量int1的值为5
    Call MySub1((int1))                     ' 加上额外的括号，按值传递
    Print int1                              ' 打印出调用后的值
End Sub
Sub MySub1(A As Integer)                    ' 按地址传递
    A = 10                                  ' 改变形参的值
End Sub