form f_read_data中：
message '找不到数据' type 'E'.
stop.
改为：
message '找不到数据' type 'S' display like 'E'.
stop.
然后：
start-of-selection.
perform f_read_data.
************************************************************************
end-of-selection.
IF it_intab[] IS NOT INITIAL.
perform f_get_smf_name.
perform f_smartform_print.
ENDIF.
perform f_read_data.
************************************************************************
end-of-selection.
IF it_intab[] IS NOT INITIAL.
perform f_get_smf_name.
perform f_smartform_print.
ENDIF.