一、前言根据邮电部规定,从1990年5月起将开始要求用户书写收、寄信人邮政编码。届时出口函件分拣将从按址分拣转变为按码分拣,并存部分业务量较大的城市试用信函分拣机,为逐步实现函件机械化、自动化处理打下良好的基础。为了满足广大群众和社会各界使用邮政编码的需要,全国各省、自治区、直辖市的邮政编码簿、《中国邮政编码图 I. Preface According to the regulations of the Ministry of Posts and Telecommunications, starting from May 1990, users will be required to write and post the postal code. At the appointed time, export letter sorting will change from sorting by address to sorting sorting by code, and some commercial letter sorting machines with large amount of business coexist in the city will lay a good foundation for the gradual realization of mechanization and automation of correspondence. In order to meet the needs of the masses and all sectors of society using postal codes, the postal code books of all provinces, autonomous regions and municipalities directly under the Central Government,