古人所谓打更，今天谓之值班巡逻。打更的作用主要在于能及时发现险情，并及时排除。倘若无力排除险情，也能及时报警呼救，避免险情扩大范围。还有一个作用就是可以提醒人们注意，对于某些企图偷盗或纵火的人来说，则闻更丧胆，收敛作恶。打更不外四种形式：一谓巡更；一谓坐 The so-called ancients to fight more, today’s duty patrol. The main role is to play a more timely detection of danger, and promptly ruled out. If unable to rule out dangerous situations, they can call for help in time to avoid expanding the scope of the danger. Another function is to remind people that for some people who try to steal or arson, they are more likely to be discouraged and to behave evilly. Fight more than four forms: a patrol; a seat