In addition to internal tables, structures are one of the complex data types in ABAP. A structure is a result of any basic types, reference types or complex data types. As with all data in the ABAP, ...

请问我把这个函数建好了，但每次激活都会提示“REPORT/PROGRAM statement missing.or program type is I(INCLUDE)”,这个是什么原因，我的Function group 也已经指定建立好了。