id=_connection.QueryFirstOrDefault<int?>(" select id from dc_report_invest_return_sku where sku=@sku and project=@project limit 1 ",new{sku=item.skuCode,project="FBA仓"})??0
id=_connection.QueryFirstOrDefault<int?>(" select id from dc_report_invest_return_sku where sku=@sku and project=@project limit 1 ",new{sku=item.skuCode,project="BP代运营"})??0