代码如下：
REPORT z_jason_test_f4 .
TABLES: s031.
PARAMETER p_spmon TYPE spmon DEFAULT sy-datum+0(6) OBLIGATORY.
SELECT-OPTIONS s_spmon FOR s031-spmon DEFAULT sy-datum+0(6) OBLIGATORY.
AT SELECTION-SCREEN ON VALUE-REQUEST FOR p_spmon.
PERFORM monat_f4.
AT SELECTION-SCREEN ON VALUE-REQUEST FOR s_spmon-low.
PERFORM monat_f4.
AT SELECTION-SCREEN ON VALUE-REQUEST FOR s_spmon-high.
PERFORM monat_f4.
FORM monat_f4.
DATA: BEGIN OF mf_dynpfields OCCURS 1.
INCLUDE STRUCTURE dynpread.
DATA: END OF mf_dynpfields.
DATA: mf_returncode LIKE sy-subrc,
mf_monat LIKE isellist-month,
mf_hlp_repid LIKE sy-repid.
FIELD-SYMBOLS: <mf_feld>.
GET CURSOR FIELD mf_dynpfields-fieldname.
APPEND mf_dynpfields.
mf_hlp_repid = sy-repid.
DO 2 TIMES.
CALL FUNCTION 'DYNP_VALUES_READ'
EXPORTING
dyname = mf_hlp_repid
dynumb = sy-dynnr
TABLES
dynpfields = mf_dynpfields
EXCEPTIONS
invalid_abapworkarea = 01
invalid_dynprofield = 02
invalid_dynproname = 03
invalid_dynpronummer = 04
invalid_request = 05
no_fielddescription = 06
undefind_error = 07.
IF sy-subrc = 3.
mf_hlp_repid = 'SAPLALDB'.
ELSE.
READ TABLE mf_dynpfields INDEX 1.
TRANSLATE mf_dynpfields-fieldvalue USING '_ '.
EXIT.
ENDIF.
ENDDO.
IF sy-subrc = 0.
CALL FUNCTION 'CONVERSION_EXIT_PERI_INPUT'
EXPORTING
input = mf_dynpfields-fieldvalue
IMPORTING
output = mf_monat
EXCEPTIONS
error_message = 1.
IF mf_monat IS INITIAL.
mf_monat = sy-datlo(6).
ENDIF.
CALL FUNCTION 'POPUP_TO_SELECT_MONTH'
EXPORTING
actual_month = mf_monat
IMPORTING
selected_month = mf_monat
return_code = mf_returncode
EXCEPTIONS
factory_calendar_not_found = 01
holiday_calendar_not_found = 02
month_not_found = 03.
IF sy-subrc = 0 AND mf_returncode = 0.
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
EXPORTING
input = mf_monat
IMPORTING
output = mf_dynpfields-fieldvalue.
COLLECT mf_dynpfields.
CALL FUNCTION 'DYNP_VALUES_UPDATE'
EXPORTING
dyname = mf_hlp_repid
dynumb = sy-dynnr
TABLES
dynpfields = mf_dynpfields
EXCEPTIONS
invalid_abapworkarea = 01
invalid_dynprofield = 02
invalid_dynproname = 03
invalid_dynpronummer = 04
invalid_request = 05
no_fielddescription = 06
undefind_error = 07.
ENDIF.
ENDIF.
ENDFORM.
