Append lines of 和 Append

Syntax:

  append lines of itab1 [ from n1 ] [ to n2 ] to itab2.

把内表 itab1 的 n1 到 n2 行内容附加到 itab2 内表中去.

前提是 itab1 与 itab2 结构完成相同.

REPORT  z_af_036.
DATA: BEGIN OF wa_line,
  col1 TYPE i,
  col2 TYPE i,
  END OF wa_line.

DATA: itab1 LIKE STANDARD TABLE OF wa_line.
DATA: itab2 LIKE STANDARD TABLE OF wa_line.

START-OF-SELECTION.

  DO 3 TIMES.
    wa_line-col1 = sy-index.
    wa_line-col2 = sy-index ** 2.
    APPEND wa_line TO itab1.
    wa_line-col1 = sy-index.
    wa_line-col2 = sy-index ** 3.
    APPEND wa_line TO itab1.
  ENDDO.
  APPEND LINES OF itab1 TO itab2.
  LOOP AT itab2 INTO wa_line.
    WRITE:/ wa_line-col1,
            wa_line-col2.
  ENDLOOP.
  ULINE.
  APPEND LINES OF itab1 FROM 2 TO 3 TO itab2.

  LOOP AT itab1 INTO wa_line.
    WRITE:/ wa_line-col1,
            wa_line-col2.
  ENDLOOP.
  ULINE.
  LOOP AT itab2 INTO wa_line.
    WRITE:/ wa_line-col1,
            wa_line-col2.
  ENDLOOP.