System.Data.Odbc.OdbcConnection conn = new System.Data.Odbc.OdbcConnection();
string table = @"E:/show2003.dbf";
string connStr = @"Driver={Microsoft Visual FoxPro Driver};SourceType=DBF;SourceDB=" + table + ";Exclusive=No;NULL=NO;Collate=Machine;BACKGROUNDFETCH=NO;DELETED=NO";
conn.ConnectionString = connStr;
conn.Open();
System.Data.Odbc.OdbcCommand cmd = new System.Data.Odbc.OdbcCommand();
cmd.Connection = conn;
string sql = @"update " + table +" set S2='**********' where S1 ='"+lastNum+"'";
cmd.CommandText = sql;
cmd.CommandType = CommandType.Text;
cmd.ExecuteNonQuery();
sql = @"select * from " + table;
System.Data.Odbc.OdbcDataAdapter da = new System.Data.Odbc.OdbcDataAdapter(sql, conn);
DataTable dt = new DataTable();
da.Fill(dt);
for (int i = 0; i < dt.Rows.Count; i++)
{
//MessageBox.Show(dt.Rows[i][1].ToString());
Console.WriteLine(dt.Rows[i][1].ToString());
}