古老的txt下传和txt上载

1、下传文件

TYPES:BEGIN OF TY_DATA,
        A2 TYPE CHAR20,
        B2 TYPE I,
        C2 TYPE CHAR20,
      END OF TY_DATA.
DATA:IT_DATA TYPE STANDARD TABLE OF TY_DATA WITH HEADER LINE,
     WA_DATA TYPE TY_DATA.
DATA:IT_DATA1 TYPE STANDARD TABLE OF TY_DATA WITH HEADER LINE,
     WA_DATA1 TYPE TY_DATA.
DATA:NAME TYPE RLGRAP-FILENAME,TYPA TYPE RLGRAP-FILETYPE.
WA_DATA-A2 = '我是'.
WA_DATA-B2 = 1.
WA_DATA-C2 = '个中国人'.
APPEND WA_DATA TO IT_DATA.
CLEAR:WA_DATA.
WA_DATA-A2 = '你是'.
WA_DATA-B2 = 10.
WA_DATA-C2 = '全10美的人'.
APPEND WA_DATA TO IT_DATA.
CLEAR:WA_DATA.
NAME = 'D:\TEMP\TEXT.txt'.
TYPA = 'DAT'.
CALL FUNCTION 'DOWNLOAD'
  EXPORTING
    CODEPAGE                = 'TEXT '
    FILENAME                = NAME
    FILETYPE                = TYPA
    ITEM                    = '文件导出'
  TABLES
    DATA_TAB                = IT_DATA
  EXCEPTIONS
    INVALID_FILESIZE        = 1
    INVALID_TABLE_WIDTH     = 2
    INVALID_TYPE            = 3
    NO_BATCH                = 4
    UNKNOWN_ERROR           = 5
    GUI_REFUSE_FILETRANSFER = 6
    OTHERS                  = 7.
IF SY-SUBRC <> 0.
* Implement suitable error handling here
ENDIF.

2、上传文件

CALL FUNCTION 'UPLOAD'
  EXPORTING
    CODEPAGE                = 'TEXT '
    FILENAME                = NAME
    FILETYPE                = TYPA
    ITEM                    = '读入文件 '
  TABLES
    DATA_TAB                = IT_DATA1
  EXCEPTIONS
    CONVERSION_ERROR        = 1
    INVALID_TABLE_WIDTH     = 2
    INVALID_TYPE            = 3
    NO_BATCH                = 4
    UNKNOWN_ERROR           = 5
    GUI_REFUSE_FILETRANSFER = 6
    OTHERS                  = 7.
IF SY-SUBRC <> 0.
* Implement suitable error handling here
ENDIF.
LOOP AT IT_DATA.
  WRITE:/ IT_DATA-A2,IT_DATA-B2,IT_DATA-C2.
  ENDLOOP.