form1.frm

这是一个很简单的程序

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   6075
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   5520
   LinkTopic       =   "Form1"
   ScaleHeight     =   6075
   ScaleWidth      =   5520
   StartUpPosition =   3  'Windows Default
   Begin VB.TextBox Text2 
      DataSource      =   "Data1"
      Height          =   495
      Left            =   600
      TabIndex        =   2
      Text            =   "Text2"
      Top             =   2280
      Width           =   1935
   End
   Begin VB.TextBox Text1 
      Height          =   1095
      Left            =   600
      TabIndex        =   1
      Text            =   "Text1"
      Top             =   3600
      Width           =   2535
   End
   Begin VB.CommandButton Command1 
      Caption         =   "Command1"
      Height          =   735
      Left            =   3600
      TabIndex        =   0
      Top             =   2640
      Width           =   1575
   End
   Begin VB.Data Data2 
      Caption         =   "Data2"
      Connect         =   "Access"
      DatabaseName    =   "C:\Documents and Settings\Administrator\My Documents\新建文件夹\bb.mdb"
      DefaultCursorType=   0  'DefaultCursor
      DefaultType     =   2  'UseODBC
      Exclusive       =   0   'False
      Height          =   735
      Left            =   480
      Options         =   0
      ReadOnly        =   0   'False
      RecordsetType   =   1  'Dynaset
      RecordSource    =   ""
      Top             =   960
      Width           =   3135
   End
   Begin VB.Data Data1 
      Caption         =   "Data1"
      Connect         =   "Access"
      DatabaseName    =   "C:\Documents and Settings\Administrator\My Documents\新建文件夹\aa.mdb"
      DefaultCursorType=   0  'DefaultCursor
      DefaultType     =   2  'UseODBC
      Exclusive       =   0   'False
      Height          =   735
      Left            =   360
      Options         =   0
      ReadOnly        =   0   'False
      RecordsetType   =   1  'Dynaset
      RecordSource    =   ""
      Top             =   120
      Width           =   3375
   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()
Dim sql As String
sql = "select * from no1 where a = 'key2'"
Data1.RecordSource = sql
Data1.Refresh

Dim sql2 As String
sql2 = "select * from no2 where a= 'key2'"
Data2.RecordSource = sql2
Data2.Refresh

Text1.Text = CDbl(Data1.Recordset.Fields(1)) + CDbl(Data2.Recordset.Fields(1))

End Sub