唐代长安城的街鼓,具有报警和晨昏报时的双重功能。街鼓之声不仅是京城城门、皇城、宫城城门及宫门开启和关闭的标志性信号,也是百官上朝、办公的时钟,同时还是维护禁夜制度的法律依据,对长安坊市的有效管理起着积极作用。从这个意义上说,长安街鼓不仅调节着京城生活的正常节奏,而且也规范了长安居民的城内生活和城外活动,对于维系大唐的时序具有重要意义。 Chang’an City Street drums of the Tang Dynasty, with dual functions of alarm and morning twilight time. The sound of the street drums is not only a symbolic signal for the opening, closing and closing of the capital city gates, Imperial City, Miyagi Shing Mun and the palace gates, but also the official clock of the official government and the office. At the same time, it is also the legal basis for maintaining the no-night system. The effective management of Square City plays a positive role. In this sense, Chang’an Jiegu not only regulates the normal rhythm of capital life, but also regulates Chang’an residents’ city life and activities outside the city, which is of great significance for maintaining the timing of Datang.