SqlRun.DoExeReader在[DBCONFIG=Mall(charset=utf8;database=mixedlot_mall;pooling=true;port=3306;pwd=#22720967Test;server=daviddbinstance.c2uwjwtq4iwb.us-west-1.rds.amazonaws.com;uid=wwwsale;)]上执行代码{SELECT `T0`.`B2CGoodsID`,`T0`.`goodspic`,`T0`.`goodstitle`,`T0`.`ExpCount`,`T0`.`minpric`,`T0`.`FromCustomsShare`,`T0`.`FromCustomsUID`,`T0`.`unit` FROM `b2cproducts` AS T0 INNER JOIN (SELECT DISTINCT `T0`.`B2CGoodsID` FROM `b2cproducts` AS T0 INNER JOIN `tag_obj_relate` AS T1 ON `T1`.`ObjID` = `T0`.`B2CGoodsID` INNER JOIN `tag_category_relate` AS T2 ON `T2`.`TagID` = `T1`.`TagID` WHERE `T1`.`ObjType` = 2 AND CONCAT(',',B2CClassID,',') like '%,76,%' AND `T2`.`CategoryID` IN (3,32,33,29,34,37,39,40,45,61,62,22,103,104,105,107,108,109,112,114,115,116,117,118,120,124,637,25,617,618,122,130,182,27,121,204,30,20,41,766,765,767,89,90,91,94,95,96,97,98,755,60,24,47,616,38,31,7,21,23,125,126,128,129,131,181,56,36,514,515,517,35,46) AND `T0`.`goodsstate` = 1 AND `T0`.`UserGrade` LIKE '%1%' AND ( `T0`.`FromCustomsGoodsID` <= 0 OR ( `T0`.`FromCustomsGoodsID` > 0 AND ( `T0`.`FromCustomsShare` = 1 OR ( `T0`.`FromCustomsShare` = 0 AND `T0`.`FromCustomsUID` = 0 AND `T0`.`FromCustomsUID` > 0 ) ) ) ) )AS qView1 ON `T0`.`B2CGoodsID` = qView1.B2CGoodsID ORDER BY `T0`.`MofifyTime` DESC LIMIT 0,48}时出错:Object reference not set to an instance of an object. at Weed.SDQ.SqlRun.ExeReader(DbCommand cmd, CommandBehavior rowBehavior, QDbTran qTran) at Weed.SDQ.SqlRun.ExeReader(String sqlText, QDbTran qTran) at Weed.SDQ.AQuery`1.<>c__DisplayClass12`1.