例6.frm

在VB5环境下开发的VB程序集,窗体控件源代码.

VERSION 5.00
Begin VB.Form frm8_7_1 
   Caption         =   "例6:定义两个数交换的过程"
   ClientHeight    =   3090
   ClientLeft      =   60
   ClientTop       =   450
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   ScaleHeight     =   3090
   ScaleWidth      =   4680
   StartUpPosition =   3  '窗口缺省
   Begin VB.TextBox Text2 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   615
      Left            =   2640
      TabIndex        =   1
      Top             =   1320
      Width           =   1455
   End
   Begin VB.TextBox Text1 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   615
      Left            =   480
      TabIndex        =   0
      Top             =   1320
      Width           =   1455
   End
   Begin VB.Label Label1 
      Caption         =   "单击窗体交换两个数"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   615
      Left            =   840
      TabIndex        =   2
      Top             =   240
      Width           =   2775
   End
End
Attribute VB_Name = "frm8_7_1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
'Swap (x,y)子过程的定义
Public Sub Swap(x, y)   ' x, y 为形参
   Dim t
   t = x
   x = y
   y = t
End Sub
                                          

'主调程序调用Swap子过程
Private Sub Form_Click()
     Dim a, b
     a = Text1
     b = Text2
     Call Swap(a, b)   'a, b 为实参，引用调用
     Text1 = a
     Text2 = b
End Sub