alv控件问题
我自定义了一个ALV控件实例，程序如下：为何运行不起来？
REPORT YTEST058.
type-pools: slis.
data: wa_alv_field type slis_fieldcat_alv.
data: wa_alv_fieldcat type slis_t_fieldcat_alv.
data: wa_spfli like table of spfli with header line.
select * into table wa_spfli from spfli.
wa_alv_field-col_pos = 1.
wa_alv_field-fieldname = 'carrid'.
wa_alv_field-seltext_m = '航線承呷�'.
append wa_alv_field to wa_alv_fieldcat.
wa_alv_field-col_pos = 2.
wa_alv_field-seltext_m = '航班連接'.
wa_alv_field-fieldname = 'connid'.
append wa_alv_field to wa_alv_fieldcat.
wa_alv_field-col_pos = 3.
wa_alv_field-seltext_m = '起飛城市'.
wa_alv_field-fieldname = 'cityfrom'.
append wa_alv_field to wa_alv_fieldcat.
wa_alv_field-col_pos = 4.
wa_alv_field-seltext_m = '目標城市'.
wa_alv_field-fieldname = 'cityto'.
append wa_alv_field to wa_alv_fieldcat.
call function 'reuse_alv_grid_display'
exporting
it_fieldcat = wa_alv_fieldcat
tables
t_outtab = wa_spfli.
if sy-subrc <> 0.
endif.
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