DATA(LV_LINES) = REDUCE I( INIT X = 0
FOR LS_TEMP IN GT_ALV WHERE ( SEL = 'X' AND LIGHTS = '@08@')
NEXT X = X + 1 ).
IF LV_LINES = 0.
MESSAGE '请选择要操作的数据,红灯数据不能操作' TYPE 'S' DISPLAY LIKE 'E'.
LK_FLAG = 'X'.
ENDIF.
IF LK_FLAG = 'X'.
RETURN.
ENDIF.
标签：这行,LINES,LK,LV,FLAG,ENDIF,数据,多少,统计 From： https://www.cnblogs.com/chrisssyuan/p/17433341.html