varlast_task_synchro_log=MyMySqlConnection._connection.QuerySingleOrDefault<task_synchro_log>(" select * from task_synchro_log where task_name=@task_name and status=1 order by end_time desc limit 1 ",new{task_name=task_name});
transferFee.id=MyMySqlConnection._connection.QueryFirstOrDefault<int?>(" select id from dc_base_amazon_fee where data_id=@data_id ",new{data_id=transferFee.data_id})??0;
feeItem.id=MyMySqlConnection._connection.QueryFirstOrDefault<int?>("select id from dc_base_amazon_fee where data_id=@data_id",new{data_id=feeItem.data_id})??0;