将SE11中看到的数据表结构，制作成EXCEL文件，以便查阅。CPOY的话得一个字段一个元素的COPY再一个个粘过去，不仅麻烦，如果一个结构有上百个元素，工作量也是很大的。
研究整理了一下各位达人的程序，写了一个新的导出程序。本程序只需在选择界面输入要导出的结构名及保存路径，就在该路径下生成一个以该结构命名的EXCEL文件。也可以指定输出结构的单独字段。代码如下：
REPORT YTABLE no standard page heading
message-id y2
line-size 200
line-count 65 .
tables: dfies, x030l,rlgrap.
data: begin of itab occurs 0.
include structure dfies.
data: end of itab.
data: g_file like rlgrap-filename. "下载保存路径
data:begin of itab1 occurs 0,
fieldname like dfies-fieldname, "Fieldname
keyflag(4), "KEY
rollname(12), "Data Element
datatype(8), "Data Type
leng(6), "Length
decimals(6), "Decimal Place
fieldtext like dfies-fieldtext, "Short Description
end of itab1.
*********************定义屏幕
selection-screen begin of block blk1 with frame title text-001.
parameters:table type ddobjname default 'VBAK',
field type dfies-fieldname,
p_dnfile like rlgrap-filename default 'D:/'.
selection-screen end of block blk1.
start-of-selection.
perform read_data."从表中读取数据
end-of-selection.
perform write_data."输出数据
*&---------------------------------------------------------------------*
*& Form read_data
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
* --> p1 text
* <-- p2 text
*----------------------------------------------------------------------*
form read_data .
*****CALL FUNCTION*****
call function 'DDIF_FIELDINFO_GET'
exporting
tabname = table
fieldname = field
langu = sy-langu "这个可以改成别的语言,For Short Descriptions
tables
dfies_tab = itab " like table dfies.
exceptions
not_found = 1
internal_error = 2
others = 3.
if sy-subrc <> 0.
* MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
* WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
endif.
itab1-fieldname = '字段'. "Fieldname
itab1-keyflag = '主键'. "KEY
itab1-rollname = '数据元素'. "Data Element
itab1-datatype = '数据类型'. "Data Type
itab1-leng = '长度'. "Length
itab1-decimals = '小数位'. "Decimal Place
itab1-fieldtext = '短文本'. "Short Description
append itab1.
clear itab1.
loop at itab.
itab1-fieldname = itab-fieldname.
itab1-keyflag = itab-keyflag.
itab1-rollname = itab-rollname.
itab1-datatype = itab-datatype.
itab1-leng = itab-leng.
itab1-decimals = itab-decimals.
itab1-fieldtext = itab-fieldtext.
append itab1.
clear itab1.
endloop.
concatenate p_dnfile table '.xls' into g_file. "这里为将内表数据下载到本地D盘,名字为表名，类型为EXCEL
call function 'WS_DOWNLOAD'
exporting
filename = g_file
filetype = 'DAT'
tables
data_tab = itab1. "被下载的内表
endform. " read_data
*&---------------------------------------------------------------------*
*& Form write_data
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
* --> p1 text
* <-- p2 text
*----------------------------------------------------------------------*
form write_data .
loop at itab1.
write:/ itab1-fieldname, "Fieldname
itab1-keyflag, "KEY
itab1-rollname, "Data Element
itab1-datatype, "Data Type
itab1-leng, "Length
itab1-decimals, "Decimal Place
itab1-fieldtext. "Short Description
endloop.
endform. " write_data