将内表通过TXT文本输出

 PARAMETERS: num TYPE i.
 TYPE-POOLS: truxs.  "类型组
 DATA:w_filename TYPE string.
 TYPES:BEGIN OF ty_line.
         INCLUDE STRUCTURE t001.
 TYPES END OF ty_line.
 DATA: itab   TYPE  STANDARD TABLE OF ty_line WITH DEFAULT KEY.
 DATA: itab1  TYPE truxs_t_text_data.
 SELECT * FROM t001  INTO CORRESPONDING FIELDS OF TABLE itab.

 DO num TIMES.
   CALL FUNCTION 'SAP_CONVERT_TO_CSV_FORMAT'  "CSV格式
     EXPORTING
          i_field_seperator    = ';'
     TABLES
          i_tab_sap_data       = itab
     CHANGING
          i_tab_converted_data = itab1
     EXCEPTIONS
          conversion_failed    =
          OTHERS               = .
   CONCATENATE  'C:\TEMP\' sy-datum sy-uzeit '.txt' INTO w_filename.
   CALL FUNCTION 'GUI_DOWNLOAD'  "下载
     EXPORTING
          filename = w_filename
     TABLES
          data_tab = itab1
     EXCEPTIONS
          OTHERS   = .
 ENDDO.