我是新手,我需要帮助了解我做错了什么。我在表中有一个计算字段,我输入的表达式粘贴在下面我得到一个无效的语法:-
IIf([JPP-JPA_Received_Date]<=[JPP-JPA_Due_Date],"On Time", IIf([JPP-JPA_Received_Date]>[JPP-JPA_Due_Date],"Late", IIf([JPP-JPA_Received_Date],Is Null, AND IIF([JPP-JPA_Due_Date]<Date(),"Over Due"))))