如何把绝对路径(d:\\)改成虚拟路径


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using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.OleDb;
public partial class Default2 : System.Web.UI.Page
{
    private string AcessConectionStr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:\\Test.mdb";    protected void Page_Load(object sender, EventArgs e)
    {    }
    protected void Button1_Click(object sender, EventArgs e)
    {
                try
        {
            OleDbConnection Conn = new OleDbConnection(AcessConectionStr);
            Conn.Open();
            string name = this.TextBox1.Text;
            string pwd = this.TextBox2.Text;
            string strSQL = "INSERT INTO login(userName,pwdInput) values('" + name + "','" + pwd + "')";
            OleDbCommand AcessCommand = new OleDbCommand(strSQL, Conn);
            AcessCommand.ExecuteNonQuery();
            Conn.Close();
        }
        catch (Exception ex)
        {
            Response.Write(ex.Message);
        }    
    }
}