quotation_approval_period__c 2018.1.2之前： IF(ISBLANK(Quotation_approval_date__c),today()-LatestQuotationDate__c,Quotation_approval_date__c - LatestQuotationDate__c) false IF(OR(ISBLANK(Quotation_approval_date__c),ISBLANK(LatestQuotationDate__c)),null,Quotation_approval_date__c - LatestQuotationDate__c) BlankAsZero 报价同意天数 18 false 0 false false Number false