ABAP-SPLIT的用法

TYPES:BEGIN OF ty_split ,
        split(50),
      END OF ty_split .

DATA:gt_split TYPE TABLE OF ty_split .
DATA:gs_line TYPE i .

REFRESH gt_split .
CLEAR gs_line .

SPLIT <fs_data>-yewu AT '_' INTO TABLE gt_split .
gs_line = lines( gt_split ) .

READ TABLE gt_split INTO DATA(gs_split) INDEX gs_line .
IF sy-subrc = 0 .
  <fs_data>-yewu = gs_split-split .
ENDIF .