数码计数器，在很多场合需要用到计算数量，如生产线的个数、汽车流量数、人流密集区的出入口数量统计计数器，等等。-Digital counter, a number of occasions in the calculation of the number needed, such as the number of production lines, the number of vehicular traffic, people-intensive area of import and export statistics on the number of counters, and so on.