SAP ABAP中宏使用

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REPORT demo_mod_tech_macros .

DATA: result TYPE i,
      n1     TYPE i VALUE 5,
      n2     TYPE i VALUE 6.

DEFINE operation.
  result = &1 &2 &3.
  output   &1 &2 &3 result.
END-OF-DEFINITION.

DEFINE output.
  write: / 'The result of &1 &2 &3 is', &4.
END-OF-DEFINITION.

operation 4 + 3.
operation 2 ** 7.
operation n2 - n1.