TYPE-POOLS: slis.
* Field Catalog for List Viewer Control
DATA: gt_fcat TYPE lvc_t_fcat,
gh_fcat LIKE LINE OF gt_fcat.
DATA: gt_dyn TYPE REF TO data.
DATA: gh_line TYPE REF TO data.
FIELD-SYMBOLS: <fs_table> TYPE ANY TABLE,
<fs_line> TYPE ANY,
<fs_field> TYPE ANY.
*----------------------------------------------------------------------*
* START-OF-SELECTION
*----------------------------------------------------------------------*
START-OF-SELECTION.
* Create Field catalog
gh_fcat-col_pos = 1.
gh_fcat-fieldname = 'ID'.
APPEND gh_fcat TO gt_fcat.
gh_fcat-col_pos = 2.
gh_fcat-fieldname = 'NAME'.
APPEND gh_fcat TO gt_fcat.
* Create Dynamic Data Table
CALL METHOD cl_alv_table_create=>create_dynamic_table
EXPORTING
it_fieldcatalog = gt_fcat
IMPORTING
ep_table = gt_dyn.
* Create a new Line with the same structure of the table
ASSIGN gt_dyn->* TO <fs_table>.
CREATE DATA gh_line LIKE LINE OF <fs_table>.
ASSIGN gh_line->* TO <fs_line>.
* Fill Data Table
ASSIGN COMPONENT 1 OF STRUCTURE <fs_line> TO <fs_field>.
<fs_field> = '001'.
ASSIGN COMPONENT 2 OF STRUCTURE <fs_line> TO <fs_field>.
<fs_field> = 'RAY1'.
INSERT <fs_line> INTO TABLE <fs_table>.
*-----------------
ASSIGN COMPONENT 1 OF STRUCTURE <fs_line> TO <fs_field>.
<fs_field> = '002'.
ASSIGN COMPONENT 2 OF STRUCTURE <fs_line> TO <fs_field>.
<fs_field> = 'RAY2'.
INSERT <fs_line> INTO TABLE <fs_table>.
*----------------------
ASSIGN COMPONENT 1 OF STRUCTURE <fs_line> TO <fs_field>.
<fs_field> = '003'.
ASSIGN COMPONENT 2 OF STRUCTURE <fs_line> TO <fs_field>.
<fs_field> = 'RAY3'.
INSERT <fs_line> INTO TABLE <fs_table>.
*----------------------------
* Display Data Table
* 修改I內表裏編碼是 002 的名稱
LOOP AT <fs_table> ASSIGNING <fs_line> .
ASSIGN COMPONENT 'ID' OF STRUCTURE <fs_line> TO <fs_field>.
if <fs_field> = '002'.
ASSIGN COMPONENT 'NAME' OF STRUCTURE <fs_line> TO <fs_field>.
<fs_field> = 'NAME3'.
endif.
ENDLOOP.
* 輸出內表數據
LOOP AT <fs_table> ASSIGNING <fs_line> .
WRITE: / <fs_line>.
ENDLOOP.
原著地址：http://blog.csdn.net/heng0757/article/details/6701697?locationNum=2&fps=1