OleDbConnection strConnection = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + "员工信息.mdb" + ";Persist Security Info=False");
//建立数据库引擎连接，注意数据表（后缀为.db）应放在DEBUG文件下
OleDbDataAdapter myda = new OleDbDataAdapter("select * from 雇员 ,strConnection);
//建立适配器，通过SQL语句去搜索数据库
DataSet myds = new DataSet();
//建立数据集
myda.Fill(myds, "雇员");
//用FILL的方式将适配器已经连接好的数据表填充到数据集MYDS这张表
dataGridView1.DataSource = myds.Tables["联系人ID"];
//用显示控件来显示表

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.OleDb;
namespace ConsoleApplication19
{ 
  class Program
  {
    static void Main(string[] args)
    {
      OleDbConnection mycon =null;
      OleDbDataReader myReader=null;
      try
      {
        string strcon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=db4.mdb;";
        mycon = new OleDbConnection(strcon);
        mycon.Open();
        string sql = "select * from 雇员 ";
        OleDbCommand mycom = new OleDbCommand(sql, mycon);
        myReader = mycom.ExecuteReader();
        while (myReader.Read())
        {
          Console.WriteLine(myReader.GetString(0)+" "+myReader.GetDouble(1)+" "+myReader.GetString(2)+" "+myReader.GetString(3)+" "+myReader.GetString(4));
        }
      }
      finally
      {
        myReader.Close();
        mycon.Close();
      }
    }
  }
}