求问一个关于C#很傻得问题

Question

class DaqPointDao : IDaqPointDao
{
    public List<DaqPointModel> GetAllDaqPoint(string connectString, Guid driverOID, Guid daqServiceOID)
    {
        List<DaqPointModel> rtn = new List<DaqPointModel>();
        try
        {
            string sql = " select * from  (select daq_point.* from daq_device, daq_point where daq_device.daq_driver_oid =@daq_driver_oid";
            sql += " and daq_device.daq_service_oid = @daq_service_oid and daq_device.daq_device_oid = daq_point.daq_device_oid) as a,";
            sql += "daq_extend_modbustcppoint where a.daq_point_oid = daq_extend_modbustcp_point_oid";
            SqlParameter[] parameters = new SqlParameter[2];
            parameters[0] = new SqlParameter("daq_driver_oid", DbType.Guid);
            parameters[0].Value = driverOID;
            parameters[1] = new SqlParameter("daq_service_oid", DbType.Guid);
            parameters[1].Value = daqServiceOID;
            DataTable dt = MSQLHelper.getDS(connectString, CommandType.Text, sql, parameters).Tables[0];
            rtn = ConvertUtilPoint.ConvertTableToObject(dt);
        }
        catch (Exception ex)
        {
            throw ex;
        }
        return rtn;
    }
}
    上面代码我为了得多所有我想要的点，写了个接口，然后这个是接口的实现，我想问的是下面这个代码
            public List<DaqPointModel> GetAllDaqPoint(string connectString, Guid driverOID, Guid daqServiceOID)
                    List<DaqPointModel> 这个是返回类型，GetAllDaqPoint这个是方法，(string connectString, Guid driverOID, Guid daqServiceOID)这个是参数类型和参数，我想问的是(string connectString, Guid driverOID, Guid daqServiceOID)我是通过这三个参数，来找到我想要的所有的点，是这个意思吗？我传递的是这三个参数的值？

Answer 1

没错，connectionstring是连接字符串，后面两个是查询的条件。