C#连接Access数据库，各类程序连接不同类型数据库 [待补充]

  //C#连接access数据库
        System.Data.OleDb.OleDbConnection cn = new System.Data.OleDb.OleDbConnection();
        string dbPath=Server.MapPath("~/App_Data/test.mdb");
        cn.ConnectionString = "Provider=Microsoft.Jet.OleDb.4.0;Data Source=" + dbPath + "";
        cn.Open();
        System.Data.OleDb.OleDbCommand cmd = new System.Data.OleDb.OleDbCommand("select * from yuyuewo", cn);
        this.gv1.DataSource = cmd.ExecuteReader();
        gv1.DataBind();
        cn.Close();