| <?xml version="1.0" encoding="UTF-8"?> | 
| <CustomField xmlns="http://soap.sforce.com/2006/04/metadata"> | 
|     <fullName>Operation__c</fullName> | 
|     <externalId>false</externalId> | 
|     <formula>IF(UPPER(Field_Api_Name__c) = 'ID', | 
|     '已创建。', | 
| IF(ISBLANK(OldValue__c), | 
|     '【' + Field_Lable_Name__c + '】 更改到 【' + NewValue__c + '】', | 
| IF(ISBLANK(NewValue__c), | 
|     '已删除 【' + Field_Lable_Name__c + '】 中的 ' + OldValue__c, | 
|     '将 【' + Field_Lable_Name__c + '】 从 ' + OldValue__c + ' 更改至 【' + NewValue__c + '】' | 
| )))</formula> | 
|     <label>操作</label> | 
|     <required>false</required> | 
|     <trackHistory>false</trackHistory> | 
|     <trackTrending>false</trackTrending> | 
|     <type>Text</type> | 
|     <unique>false</unique> | 
| </CustomField> |