连接access数据库-----来自一个不错的网站：http://www.connectionstrings.com/

Access	Set your custom connection string values
This is a compiled connection strings reference list on how to connect to Access.
ODBC
Standard Security
Driver= {Microsoft Access Driver (*.mdb)}; Dbq= C:/mydatabase.mdb; Uid= Admin; Pwd= ;
	COPY TO CLIPBOARD
Workgroup
Driver= {Microsoft Access Driver (*.mdb)}; Dbq= C:/mydatabase.mdb; SystemDB= C:/mydatabase.mdw;
	COPY TO CLIPBOARD
Exclusive
Driver= {Microsoft Access Driver (*.mdb)}; Dbq= C:/mydatabase.mdb; Exclusive= 1; Uid= admin; Pwd= ;
	COPY TO CLIPBOARD
OLE DB, OleDbConnection (.NET)
Standard security
Provider= Microsoft.Jet.OLEDB.4.0; Data Source= C:/mydatabase.mdb; User Id= admin; Password= ;
	COPY TO CLIPBOARD
With database password
This is the connection string to use when you have an access database protected with a password using the Set Database Password function in Access.
Provider= Microsoft.Jet.OLEDB.4.0; Data Source= C:/mydatabase.mdb; Jet OLEDB:Database Password= MyDbPassword;
	COPY TO CLIPBOARD
Workgroup (system database)
Provider= Microsoft.Jet.OLEDB.4.0; Data Source= C:/mydatabase.mdb; Jet OLEDB:System Database= system.mdw;
	COPY TO CLIPBOARD
Workgroup (system database) specifying username and password
Provider= Microsoft.Jet.OLEDB.4.0; Data Source= C:/mydatabase.mdb; Jet OLEDB:System Database= system.mdw; User ID= myUsername; Password= myPassword;