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;
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;