SAP行列转换的一种方法

一段经典的代码写在这里

TABLES spfli.
DATA: lt_data                TYPE STANDARD TABLE OF spfli,
      lwa_ref                TYPE REF TO data,
      lt_fields              TYPE stringtab,
      desc_struc             TYPE REF TO cl_abap_structdescr,
      desc_fields            TYPE ddfields.
FIELD-SYMBOLS: <fs_data>     TYPE any,
               <p_str>       TYPE string,
               <p_component> TYPE dfies.
CREATE DATA lwa_ref LIKE LINE OF lt_data.
ASSIGN lwa_ref->* TO <fs_data>.
desc_struc ?= cl_abap_structdescr=>describe_by_data( <fs_data> ).
desc_fields = desc_struc->get_ddic_field_list( ).
LOOP AT desc_fields ASSIGNING <p_component>.
  WRITE <p_component>-fieldname. " Test Code
  "...
ENDLOOP.
UNASSIGN <p_component>.