如何调用标准程序，直接获取对应标准程序的字段。
注意点：1当被调用程序有Varient值时，一定要传入值，不然字段的顺序会错乱，固定了Varient才能确保取出来的字段顺序和该Varient一致
2每个报表不同，有抬头会占用行数，所以需要自己debug看一下，从第几行开始有数据
3有些报表中间会有些汇总数据一类的不需要的，需要判断删除一下，列如根据物料为空
4 有些金额，日期字段不能直接取，需要进行转换，有些So类字段需要加前导零。
DATA: lv_string TYPE string.
DATA: lv_string2 TYPE string.
DATA l_dcpfm LIKE usr01-dcpfm.
DATA BEGIN OF itab_list OCCURS 0.
INCLUDE STRUCTURE abaplist.
DATA END OF itab_list.
DATA: BEGIN OF vlist OCCURS 0, "这个调用程序ALV输出的长度要根据实际长度来确认
line TYPE c LENGTH 300,
END OF vlist.
DATA: lt_itab TYPE TABLE OF string.
SELECT SINGLE dcpfm INTO l_dcpfm
FROM usr01
WHERE bname = sy-uname.
CLEAR gt_out.
SUBMIT rm07docs
WITH matnr IN matnr[]
WITH werks IN werks[]
WITH lgort IN lgort[]
WITH lifnr IN lifnr[]
WITH kunnr IN kunnr[]
WITH bwart IN bwart[]
WITH sobkz IN sobkz[]
WITH aufnr IN aufnr[]
WITH ebeln IN ebeln[]
WITH ebelp IN ebelp[]
WITH grund IN grund[]
WITH kostl IN kostl[]
WITH mat_kdau IN mat_kdau[]
WITH mat_kdpo IN mat_kdpo[]
WITH mat_pspn IN mat_pspn[]
WITH sgtxt IN sgtxt[]
WITH umlgo IN umlgo[]
WITH umwrk IN umwrk[]
WITH budat IN budat[]
WITH usnam IN usnam[]
WITH vgart IN vgart[]
WITH cpudt IN cpudt[]
WITH mblnr IN mblnr[]
WITH tcode2 IN tcode2[]
WITH xblnr IN xblnr[]
WITH rhier_l = ''
WITH rflat_l = 'X'
WITH alv_def = '/MKS'
WITH database = database
WITH shortdoc = shortdoc
WITH archive = archive
WITH pa_aistr = pa_aistr
WITH pa_dbstd = pa_dbstd
WITH pa_dbmat = pa_dbmat
WITH pa_dbdat = pa_dbdat
WITH pa_maa = pa_maa
EXPORTING LIST TO MEMORY
AND RETURN.
CALL FUNCTION 'LIST_FROM_MEMORY'
TABLES
listobject = itab_list
EXCEPTIONS
not_found = 4
OTHERS = 8.
FREE MEMORY .
CALL FUNCTION 'LIST_TO_ASCI'
EXPORTING
list_index = -1
TABLES
listasci = vlist
listobject = itab_list
EXCEPTIONS
empty_list = 1
list_index_invalid = 2
OTHERS = 3.
IF sy-subrc = 0.
LOOP AT vlist.
AT LAST.
CONTINUE.
ENDAT.
IF sy-tabix > 3 . “每个报表不同，需要Debug看从第几行开始有的数据内容
CLEAR:gs_out.
CLEAR: lt_itab,lv_string.
SPLIT vlist-line AT '|' INTO TABLE lt_itab.
IF lt_itab IS NOT INITIAL.
* GS_OUT-kunnr = gs_kunnr-kunnr.
* GS_OUT-bukrs = p_bukrs.
LOOP AT lt_itab INTO lv_string.
CASE sy-tabix.
WHEN '2'.
gs_out-lifnr = lv_string.
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_INPUT'
EXPORTING
input = gs_out-lifnr
IMPORTING
output = gs_out-lifnr.
WHEN '3'.
gs_out-matnr = lv_string.
WHEN '4'.
gs_out-maktx = lv_string.
WHEN '5'.
gs_out-werks = lv_string.
WHEN '6'.
gs_out-lgort = lv_string.
WHEN '7'.
gs_out-bwart = lv_string.
WHEN '8'.
gs_out-sobkz = lv_string.
WHEN '9'.
gs_out-ebeln = lv_string.
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_INPUT'
EXPORTING
input = gs_out-ebeln
IMPORTING
output = gs_out-ebeln.
WHEN '10'.
gs_out-ebelp = lv_string.
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_INPUT'
EXPORTING
input = gs_out-ebelp
IMPORTING
output = gs_out-ebelp.
WHEN '11'.
gs_out-mblnr = lv_string.
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_INPUT'
EXPORTING
input = gs_out-mblnr
IMPORTING
output = gs_out-mblnr.
WHEN '12'.
gs_out-zeile = lv_string.
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_INPUT'
EXPORTING
input = gs_out-zeile
IMPORTING
output = gs_out-zeile.
* WHEN '13'.
* gs_out-bldat = lv_string.
WHEN '13'.
gs_out-budat_c = lv_string.
CALL FUNCTION 'CONVERT_DATE_TO_INTERNAL'
“日期字段转换”
EXPORTING
date_external = gs_out-budat_c
* ACCEPT_INITIAL_DATE =
IMPORTING
date_internal = gs_out-budat
EXCEPTIONS
date_external_is_invalid = 1
OTHERS = 2.
IF sy-subrc = 0.
ENDIF.
WHEN '14'.
IF lv_string CS '-'.
SPLIT lv_string AT '-' INTO gs_out-erfmg_c lv_string2.
ELSE.
gs_out-erfmg_c = lv_string.
ENDIF.
CALL FUNCTION 'UNITS_STRING_CONVERT'
EXPORTING
units_string = gs_out-erfmg_c
dcpfm = l_dcpfm "此时为X
* MLLN = 'M'
* TSND = 'T'
IMPORTING
units = gs_out-erfmg
EXCEPTIONS
invalid_type = 1
OTHERS = 2.
IF lv_string CS '-'.
gs_out-erfmg = 0 - gs_out-erfmg.
ENDIF.
WHEN '15'.
gs_out-erfme = lv_string.
WHEN '16'.
IF lv_string CS '-'.
SPLIT lv_string AT '-' INTO gs_out-dmbtr_c lv_string2.
ELSE.
gs_out-dmbtr_c = lv_string.
ENDIF.
CALL FUNCTION 'UNITS_STRING_CONVERT'
“金额字段转换
EXPORTING
units_string = gs_out-dmbtr_c
dcpfm = l_dcpfm "此时为X
* MLLN = 'M'
* TSND = 'T'
IMPORTING
units = gs_out-dmbtr
EXCEPTIONS
invalid_type = 1
OTHERS = 2.
IF lv_string CS '-'.
gs_out-dmbtr = 0 - gs_out-dmbtr.
ENDIF.
ENDCASE.
CLEAR lv_string.
ENDLOOP.
IF gs_out IS NOT INITIAL.
SELECT SINGLE bldat INTO gs_out-bldat
FROM mkpf
WHERE mblnr = gs_out-mblnr.
APPEND gs_out TO gt_out.
CLEAR gs_out.
ENDIF.
ENDIF.
ENDIF.
ENDLOOP.
DELETE gt_out WHERE matnr = ''.