[size=medium]判断一个内表是否为空:
if itab is initial "为空
write: / "itab is empty ".
endif.
if itab is not initial "不为空
write: / "itab is not empty".
endif.[/size]
if itab is initial "为空
write: / "itab is empty ".
endif.
if itab is not initial "不为空
write: / "itab is not empty".
endif.[/size]
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