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¼ÓÌìÊý——print dateadd(day, 5, getdate()) ¼ÓСʱ——print dateadd(hour, 5, getdate())
¼Ó·ÖÖÓ——print dateadd(mi, 5, getdate()) ¼ÓÃëÊý——print dateadd(ss, 5, getdate())
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