form0603.frm

VB实验教程源码

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "交换数据"
   ClientHeight    =   3330
   ClientLeft      =   60
   ClientTop       =   450
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   ScaleHeight     =   3330
   ScaleWidth      =   4680
   StartUpPosition =   3  '窗口缺省
   Begin VB.Frame Frame1 
      Caption         =   "交换结果"
      Height          =   1695
      Left            =   480
      TabIndex        =   6
      Top             =   720
      Width           =   3855
      Begin VB.TextBox Text6 
         Height          =   375
         Left            =   2760
         TabIndex        =   14
         Top             =   960
         Width           =   855
      End
      Begin VB.TextBox Text5 
         Height          =   375
         Left            =   960
         TabIndex        =   12
         Top             =   960
         Width           =   855
      End
      Begin VB.TextBox Text4 
         Height          =   375
         Left            =   2760
         TabIndex        =   10
         Top             =   360
         Width           =   855
      End
      Begin VB.TextBox Text3 
         Height          =   375
         Left            =   960
         TabIndex        =   8
         Top             =   360
         Width           =   855
      End
      Begin VB.Label Label6 
         Caption         =   "y ="
         Height          =   375
         Left            =   2160
         TabIndex        =   13
         Top             =   960
         Width           =   615
      End
      Begin VB.Label Label5 
         Caption         =   "x ="
         Height          =   375
         Left            =   360
         TabIndex        =   11
         Top             =   960
         Width           =   495
      End
      Begin VB.Label Label4 
         Caption         =   "b ="
         Height          =   375
         Left            =   2160
         TabIndex        =   9
         Top             =   360
         Width           =   495
      End
      Begin VB.Label Label3 
         Caption         =   "a ="
         Height          =   375
         Left            =   360
         TabIndex        =   7
         Top             =   360
         Width           =   375
      End
   End
   Begin VB.CommandButton Command2 
      Caption         =   "退出"
      Height          =   495
      Left            =   2760
      TabIndex        =   5
      Top             =   2640
      Width           =   975
   End
   Begin VB.CommandButton Command1 
      Caption         =   "交换"
      Height          =   495
      Left            =   840
      TabIndex        =   4
      Top             =   2640
      Width           =   975
   End
   Begin VB.TextBox Text2 
      Height          =   375
      Left            =   3240
      TabIndex        =   1
      Top             =   240
      Width           =   855
   End
   Begin VB.TextBox Text1 
      Height          =   375
      Left            =   1320
      TabIndex        =   0
      Top             =   240
      Width           =   855
   End
   Begin VB.Label Label2 
      Caption         =   "b ="
      Height          =   375
      Left            =   2640
      TabIndex        =   3
      Top             =   240
      Width           =   495
   End
   Begin VB.Label Label1 
      Caption         =   "a ="
      Height          =   375
      Left            =   720
      TabIndex        =   2
      Top             =   240
      Width           =   495
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit

Private Sub Command1_Click()
'单击交换按钮
    Dim a As Integer, b As Integer
    a = Val(Text1.Text)
    b = Val(Text2.Text)
    Call Change(a, b)
    Text3.Text = a
    Text4.Text = b
End Sub
'Private Sub Change(ByRef x As Single, ByRef y As Single)
Private Sub Change(ByVal x As Single, ByVal y As Single)
'交换数据子过程
    Dim z As Single
    z = x
    x = y
    y = z
    Text5.Text = x
    Text6.Text = y
End Sub

Private Sub Command2_Click()
'单击退出按钮
    End
End Sub