OleDbConnection nwindConn = new OleDbConnection("Provider=SQLOLEDB;Data Source=localhost;" + "Integrated Security=SSPI;Initial Catalog=数据库");
nwindConn.Open();
或者myConnectionString = "Provider=SQLOLEDB;Data Source=localhost;Initial Catalog=Northwind;Integrated Security=SSPI;userid=yu;password=123;"
OleDbConnection myConnection = new OleDbConnection(myConnectionString,数据库);
myConnection.open()
this.....e
myConnection.close();