liuhao.frm

上传的包含两个文件

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   3255
   ClientLeft      =   60
   ClientTop       =   450
   ClientWidth     =   4980
   LinkTopic       =   "Form1"
   ScaleHeight     =   3255
   ScaleWidth      =   4980
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton Command4 
      Caption         =   "清除"
      Height          =   375
      Left            =   1080
      TabIndex        =   16
      Top             =   2760
      Width           =   855
   End
   Begin VB.TextBox Text1 
      Height          =   495
      Left            =   120
      TabIndex        =   15
      Text            =   "Text1"
      Top             =   120
      Width           =   2775
   End
   Begin VB.CommandButton Command3 
      Caption         =   "="
      Height          =   375
      Left            =   960
      TabIndex        =   14
      Top             =   2280
      Width           =   1095
   End
   Begin VB.CommandButton Command2 
      Caption         =   "/"
      Height          =   375
      Index           =   3
      Left            =   2040
      TabIndex        =   13
      Top             =   1800
      Width           =   375
   End
   Begin VB.CommandButton Command2 
      Caption         =   "*"
      Height          =   375
      Index           =   2
      Left            =   1560
      TabIndex        =   12
      Top             =   1800
      Width           =   375
   End
   Begin VB.CommandButton Command2 
      Caption         =   "-"
      Height          =   375
      Index           =   1
      Left            =   1080
      TabIndex        =   11
      Top             =   1800
      Width           =   375
   End
   Begin VB.CommandButton Command2 
      Caption         =   "+"
      Height          =   375
      Index           =   0
      Left            =   600
      TabIndex        =   10
      Top             =   1800
      Width           =   375
   End
   Begin VB.CommandButton Command1 
      Caption         =   "9"
      Height          =   375
      Index           =   9
      Left            =   2280
      TabIndex        =   9
      Top             =   1200
      Width           =   375
   End
   Begin VB.CommandButton Command1 
      Caption         =   "8"
      Height          =   375
      Index           =   8
      Left            =   1800
      TabIndex        =   8
      Top             =   1200
      Width           =   375
   End
   Begin VB.CommandButton Command1 
      Caption         =   "7"
      Height          =   375
      Index           =   7
      Left            =   1320
      TabIndex        =   7
      Top             =   1200
      Width           =   375
   End
   Begin VB.CommandButton Command1 
      Caption         =   "6"
      Height          =   375
      Index           =   6
      Left            =   840
      TabIndex        =   6
      Top             =   1200
      Width           =   375
   End
   Begin VB.CommandButton Command1 
      Caption         =   "5"
      Height          =   375
      Index           =   5
      Left            =   360
      TabIndex        =   5
      Top             =   1200
      Width           =   375
   End
   Begin VB.CommandButton Command1 
      Caption         =   "4"
      Height          =   375
      Index           =   4
      Left            =   2280
      TabIndex        =   4
      Top             =   720
      Width           =   375
   End
   Begin VB.CommandButton Command1 
      Caption         =   "3"
      Height          =   375
      Index           =   3
      Left            =   1800
      TabIndex        =   3
      Top             =   720
      Width           =   375
   End
   Begin VB.CommandButton Command1 
      Caption         =   "2"
      Height          =   375
      Index           =   2
      Left            =   1320
      TabIndex        =   2
      Top             =   720
      Width           =   375
   End
   Begin VB.CommandButton Command1 
      Caption         =   "1"
      Height          =   375
      Index           =   1
      Left            =   840
      TabIndex        =   1
      Top             =   720
      Width           =   375
   End
   Begin VB.CommandButton Command1 
      Caption         =   "0"
      Height          =   375
      Index           =   0
      Left            =   360
      TabIndex        =   0
      Top             =   720
      Width           =   375
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim Index, a, i As Integer
Dim num1, num2 As Double
Dim b() As Integer
Private Sub Command1_Click(Index As Integer)
Text1.Text = Text1.Text + Command1(Index).Caption
End Sub

Private Sub Command2_Click(Index As Integer)
num1 = Val(Text1.Text)
Text1.Text = " "
a = Index
End Sub

Private Sub Command3_Click()
Select Case a
       Case 0
            num2 = Val(Text1.Text)
            Text1.Text = num1 + num2
End Select
End Sub

Private Sub Command4_Click()
Text1.Text = " "
End Sub