frmconstant.frm

Visual Basic 6 大学教程的代码

VERSION 5.00
Begin VB.Form frmConstant 
   Caption         =   "Fig. 5.21: Constant Variables"
   ClientHeight    =   1320
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   ScaleHeight     =   1320
   ScaleWidth      =   4680
   StartUpPosition =   3  'Windows Default
   Begin VB.CommandButton cmdPrint 
      Caption         =   "Print"
      Height          =   495
      Left            =   1800
      TabIndex        =   0
      Top             =   720
      Width           =   1215
   End
End
Attribute VB_Name = "frmConstant"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
' Fig. 5.21
' Constant Variables
Option Explicit             ' General declaration

Private Sub cmdPrint_Click()
   Const year As Integer = 1998, version As Single = 2.22
   Const pi As Double = 3.14159

   Print "Constant variable year is " & year
   Print "Constant variable version is " & version
   Print "Constant variable pi is " & pi
   
   cmdPrint.Enabled = False   ' Disable button
End Sub