源码:
连接数据库
Imports System.Data.OleDb
Public Class DBHelper
Friend WithEvents conn As System.Data.OleDb.OleDbConnection = New
OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=图书管理系统.mdb")
Friend WithEvents oda As System.Data.OleDb.OleDbDataAdapter
Friend WithEvents cmd As System.Data.OleDb.OleDbCommand
Friend WithEvents ds As DataSet
Function getDS(ByVal strSQL As String) As DataSet
conn.Open()