CLASS STATICS 即使是局部变量也是全局的

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1. REPORT zdemo02.
   
2. 
   
3. CLASS cls DEFINITION.
   
4.   PUBLIC SECTION.
   
5.     CLASS-METHODS meth.
   
6. ENDCLASS.
   
7. 
   
8. CLASS cls IMPLEMENTATION.
   
9.   METHOD meth.
   
10.     DATA local TYPE i VALUE 10.
    
11.     STATICS static TYPE i VALUE 10.
    
12.     local += 1.
    
13.     static += 1.
    
14.     cl_demo_output=>write( |Local: { local }, | &&
    
15.                            |Static: { static }| ).
    
16.   ENDMETHOD.
    
17. ENDCLASS.
    
18. 
    
19. START-OF-SELECTION.
    
20.   DO 10 TIMES.
    
21.     cls=>meth( ).
    
22.   ENDDO.
    
23.   cl_demo_output=>display( ).