1、conn = "Data Source=localhost;Initial Catalog=SuperMarket;Integrated Security=True"
2、conn = "data source=WIN7MS-N2FKC51K;database=SuperMarket;uid=sa;password=123456"
3、con="server=localhost;database=SuperMarket;user=sa;password=123456"
//连接Access数据库
4、conStr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Application.StartupPath + "\\App_Data\\database.mdb";
5、conn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + HttpContext.Current.Server.MapPath(ConfigurationManager.AppSettings["dbpath"].ToString());
//连接Excel数据表
6、 MyConnectionstring = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + path + ";Extended Properties='Excel 8.0;HDR=NO;IMEX=1'";
string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + txtWay.Text + ";Extended Properties=Excel 8.0";