OOABAP:用类对象调用类方法

Question

程序中e1是类事件，c1是类方法。我尝试使用类方法c1=>t1和对象方法c1->t1的调用调用类事件，两者都是成功的。为什么?如我们所知，类方法总是由c1=>t1调用。

REPORT  my_event7.
CLASS c1 DEFINITION.
  PUBLIC SECTION.
    CLASS-EVENTS: e1.
    METHODS: m1 FOR EVENT e1 OF c1.
    CLASS-METHODS : t1.
ENDCLASS.                    "c1 DEFINITION
CLASS c1 IMPLEMENTATION.
  METHOD : t1.
    WRITE:/5 'C1->T1'.
    RAISE EVENT e1.
  ENDMETHOD.                   
  METHOD : m1.
    WRITE:/5 ' C1->M1'.
  ENDMETHOD.                    ":
ENDCLASS.                    "c1 IMPLEMENTATION
CLASS c2 DEFINITION.
  PUBLIC SECTION.
    METHODS: m2 FOR EVENT e1 OF c1.
ENDCLASS.                    "c2 DEFINITION
CLASS c2 IMPLEMENTATION.
  METHOD : m2.
    WRITE:/5 ' C2->M2'.
  ENDMETHOD.                    
ENDCLASS.                  "c2 IMPLEMENTATION
START-OF-SELECTION.
  DATA: oref1 TYPE REF TO c1.
  DATA: oref2 TYPE REF TO c2.
  CREATE OBJECT: oref1 .
  CREATE OBJECT: oref2 .
  SET HANDLER oref1->m1 oref2->m2.
  CALL METHOD c1=>t1.
  CALL METHOD oref1->t1.

Answer 1

你可以称之为语法糖

类方法可以在没有<classname>=>method实例的情况下调用。

但是您也可以通过类的实例调用类方法。然后您可以使用->的普通方法调用。但是在后台调用类方法