本系统的设计目的是创建一个功能实用、使用方便的采购与应付账管理系统。用户利用该系统可以动态掌握采购业务的付款和应付款情况，与库存管理系统一起使用可以随时掌握库存信息，从而减少盲目采购，有效控制库存。-The system is designed to create a functional and practical, easy-to-use purchasing and accounts payable management systems. Users make use of the system can grasp the dynamics of procurement operations and accounts payable payments situation, with the inventory management system can be used together to keep inventory information, thus reducing the blind procurement, and effective control of inventory.