abap - 使用 LET 从 itab 填充范围表

Question

我找到了这个用于填充范围表的代码(源已经离线):

DATA   lr_vkorg   TYPE RANGE OF vkorg.
TYPES: lr_range_t TYPE RANGE OF vkorg.

lr_vkorg = VALUE lr_range_t(
          LET s = 'I'
              o = 'EQ'
          IN sign   = s
             option = o
             ( low = '1100' )
             ( low = '1200' )
             ( low = '1300' )
             ( low = '1400' )
             ( low = '1500' )
).

但不是做这样的事情:

( low = '1' )
( low = '2' )
...

我想用内部表 ['1', '2', ...] 的值填充它。
有谁知道如何做到这一点？

Update: This is how I did it based on the answer:

DATA:
  lt_itab       TYPE TABLE OF string,
  lt_range_itab TYPE RANGE OF string
  .

APPEND '1'  TO lt_itab.
APPEND '2'  TO lt_itab.
APPEND '3'  TO lt_itab.
APPEND '4'  TO lt_itab.

lt_range_itab = VALUE #(
  FOR <ls_itab> IN lt_itab
  ( sign = 'I'
    option = 'EQ'
    low = <ls_itab> )
).

Answer 1

您可以像这样使用声明的结构来声明宏:

DEFINE range.
 lr_vkorg = VALUE lr_range_t( BASE lr_vkorg ( sign = 'I' option = 'EQ' low = &1 ) ).
END-OF-DEFINITION.

然后用这个一行填充你的范围:

range: '1100', '1200', '1300', '1400', '1500', '1600'.

如果我们谈论从 itab 填充范围，请使用以下语句:

lr_vkorg = VALUE #( FOR ls_vkorg IN gt_vkorg
                  ( sign = 'I'
                    option = 'EQ'
                    low = ls_vkorg-vkorg )
                  ).