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public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }

    //²é¿´°´Å¥Ê¼þÏìÓ¦º¯Êý
    protected void btnView_Click(object sender, EventArgs e)
    {
        this.LoadLiyYan();
    }
    private void LoadLiyYan()
    {
        //´´½¨Êý¾Ý¿âÁ¬½Ó£¬Á¬½Óµ½LiuyYan.mdb AccessÊý¾Ý¿â
        OleDbConnection dbcon = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + AppDomain.CurrentDomain.BaseDirectory + "\\App_Data\\LiuYan.mdb;Persist Security Info=True");
        //²éѯSQLÃüÁî
        string cmdStr = "SELECT [ÁôÑÔÕß]£¬[ÁôÑÔʱ¼ä]£¬[ÁôÑÔ±êÌâ],[ÁôÑÔÄÚÈÝ] from [ÁôÑÔÐÅÏ¢]£»";
        //´´½¨SQLÃüÁî
        OleDbCommand cmd= new OleDbCommand(cmdStr,dbcon);
        dbcon.Open();
        //ÒÔDataReader·½Ê½Ö´ÐÐSQL
        OleDbDataReader dr=cmd.ExecuteReader();
        //Çå¿ÕÁôÑÔÏÔʾÐÅÏ¢
        this.lbLiuYan.Text="";
        while(dr.Read())
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