随着人口的逐渐增加和社会经济活动范围的扩大,世界各国的邮件业务量也跟着不断上升.如何准确迅速地处理这些逐年增长的邮件问题,已成为邮政业务上的一个重大课题.公众每天交寄的邮件大半集中于午后及傍晚几个小时以内.为了应付每天的高峰时期,邮局内部用人工处理函件的部门经常面临着工作场地的调度问题, With the gradual increase of population and the expansion of social and economic activities, the volume of mail services in various countries in the world has also been on the rise. How to deal with these increasing numbers of mail accurately and rapidly has become a major issue in the postal service. The majority of mailings were concentrated in the afternoon and evening hours, and in response to the daily rush hour, departments within the post office that used manual processing of letters frequently faced workplaces scheduling problems,