[ABAP구문] FORM

   FORM pp1     
   	USING p2 p3 ...   
   ENDFORM.  
   
   FORM form_name1     
   	USING p1 p2 ...     
   	USING VALUE(p1) VALUE(p2) ...     
   	CHANGING p1 p2 ...     
   	CHANGING VALUE(p1) VALUE(p2) ...     
   	TABLES tabla1 tabla2 ...     
   	STRUCTURE name1