RankDiff__c false if(RankNoLastM__c == 0,if(RankNo__c != 0 ,'新增','无变化'),if(RankNo__c > RankNoLastM__c, '提升', if(RankNo__c < RankNoLastM__c, '下降', '无变化'))) BlankAsZero 询价等级变化 false false Text false